Improvement in Biocontrol Ability of Trichoderma Through Chemical Mutation and Gamma Irradiation for The Control of Soil Borne Pathogens

Research Article | DOI: https://doi.org/10.31579/2690-1919/347

Improvement in Biocontrol Ability of Trichoderma Through Chemical Mutation and Gamma Irradiation for The Control of Soil Borne Pathogens

  • Meshu Shewarega Foyate *

College of Agriculture and Natural Resource, Department of Plant Science, Wolkite University 

*Corresponding Author: Meshu Shewarega Foyate, College of Agriculture and Natural Resource, Department of Plant Science, Wolkite University.

Citation: Meshu S. Foyate (2024), Improvement in Biocontrol Ability of Trichoderma Through Chemical Mutation and Gamma Irradiation for The Control of Soil Borne Pathogens, J Clinical Research and Reports, 15(1); DOI:10.31579/2690-1919/347

Copyright: © 2024, Meshu Shewarega Foyate. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Received: 11 January 2024 | Accepted: 22 January 2024 | Published: 31 January 2024

Keywords: trichoderma viride; soil borne pathogens; mutation; ethyl methyl sulphonate

Abstract

Biocontrol agent like Trichoderma viride was acclaimed as effective, eco-friendly and cheap, nullifying the ill effect of chemicals, These biocontrol agents are identified to act against on array of important soil borne plant pathogens viz.,Sclerotium rolfsii, Rhizoctonia bataticola and Fusarium oxysporum f. sp. ciceri etc.” Improvement in biocontrol ability of Trichoderma viride through mutation” was carried at Department of Plant Pathology, during 2019-2020.

The antagonistic ability of a biocontrol agent was determined by its physiological state so that change in physiological or genetically conditions could alter the antagonism. Hence the genetic modification using mutagenesis offers the potential for producing improved bio-protection is likely to enhance their biocontrol capabilities against soil borne pathogen. Mutagenesis by chemical i.e. Ethyl Methyl Sulphonate (EMS) @ 100, 150, 200 and 250 µl/ml and time interval at 30, 45 and 60 minutes. The influence of gamma irradiation on improving production of antifungal metabolites and biological proficiency of the biocontrol agent against soil borne pathogen. Trichoderma viride were irradiated in different dose of gamma radiation (cobalt-60) @ 0, 20, 30, 40 and 50 k-rad. for induced mutation.

Sixteen Trichoderma viride mutants were obtained after chemical mutagenesis and gamma irradiation and tested for their antagonistic activities in vitro. 

Morphological character of efficient mutants was tested up to six generation to check their stability. Among these, four stable mutants viz., TVME 2b, TVME 2c, TVME 3c and TVGM1 were proved as effective antagonists against Sclerotium rolfsii, Rhizoctonia bataticola and Fusarium oxysporum f.sp. ciceri basis of their maximum bioefficiency.

Mutants TVME2b, TVME2c, TVME3c and TVGM1 exhibited the highest inhibition to mycelial growth of Sclerotium rolfsii with an inhibition percentage 64.76, 64.22, 63.08 and 62.93% respectively. Rhizoctonia bataticola was inhibited to the extent of 63.47, 60.87, 61.93 and 61.02% by relative mutants, while Fusarium oxysporum f. sp. ciceri was restricted and recorded 63.50, 62.88, 62.03 and 60.74% respectively. The highest chitinase enzyme units/mg of protein i.e. 0.64, 0.63, 0.63 and 0.62 was exerted in TVME2b, TVME2c, TVME3c and TVGM1 having respectively. However, TVME1c contains 0.37 enzyme units; it showed maximum ability against pathogens. hence present study proved that mutagenesis is the efficient tool for improving bioefficiency of Trichoderma viride, a biocontrol agent.

Introduction

Background           

Many fungal genera have been playing a major role in the root disease complex causing seed decay, damping off, root rot, seedling blight, collar rot, crown rot, foot rot and wilt. These are the problematic diseases throughout the world, each having wide host range covering all group of plants. Lewis and Papavizas (1991) recorded that about 90% of the 2000 major diseases of 31 principle crops in United State are caused by soil borne pathogens. In the exact estimation in India, it can be safely assumed that more the rapidly growing human population needs an increase in agricultural production. However, the emergence of plant diseases raised the difficulty of this challenge (Boyd et al., 2012). Plant diseases had greatly reduced the production of many major crops, including potato, rice, barley, wheat, and soybean (Chakraborty et al., 1999). Many fungal plant pathogens were reported to cause plant diseases, and greatly reduce the production of economically important crops. For instance, Fusarium oxysporum f. sp. cubense, a soilborne fungus, was shown to cause Panama disease in banana. On the other hand, the more than 50% crop losses are due to soil inhabiting microorganisms (Elad, 1982). In severe cases, the potato yield loss is due to Fusarium dry rot could be as high as 60% ((Al-Mughrabi 2010).Plant diseases affect plants in the field as well as post-harvested crops. Apart from reducing crop yields, some of the species like Fusarium.

Chemical control for these soil borne pathogens is arduous, uneconomical and not advisable owing to risk of ground water pollution, death of non-target beneficial flora and fauna and evolution of fungicide resistant pathogen variants Moreover, many components of pesticides are recalcitrant and tend to persist in the environment for long period of time (Hai et al., 2012). Besides that, it is not cost effective to use chemical pesticides in the long run. Biological control of these pathogens by microorganisms has been considered a more natural and environmentally acceptable alternative to the existing chemical treatment methods (Baker and Paulitz, 1996). Keeping these in view research on biological control of this group of pathogens is being carried out worldwide.

There are many biological control agents which have been reported as an efficient alternative to reduce the use of fungicides. However, in order to continue management of new strain /races of soil borne fungal pathogens being evolved in the nature, there is necessity to evolve new effective biocontrol agents. Amongst many effective bio control agents, Trichoderma is one of them whose species have been reported to be inhibitory to many soil borne pathogens (Harman et al., 2004). Bio control agent like Trichoderma spp. are acclaimed as effective, eco-friendly and cheap, nullifying the ill effect of chemicals. Therefore, of late, these biocontrol agents are identified to act against on array of important soil borne plant pathogens causing serious disease of crops. Therefore, considering the cost of chemical pesticides and hazardous involved, biological control of plant disease appears to be an effective and eco-friendly approach being practice world over (Dominguesa et al. 2000).

Trichoderma is a well-known biological control agent (BCA) because of its ability to reduce the population of soil borne pathogens. It is also a soil borne fungus and show significant activity against a wide range of plant pathogenic fungi (Elad et al., 1982 and Migheli et al., 1998). It has been used with success against a broad such as fungi and other organisms (including airborne and soil borne), bacteria, nematode, protozoa, and even viruses (Howell., 2009) Comparative efficacy of Trichoderma viride and Trichoderma harzianum against Fusarium oxysporum f.sp.ciceri is causing wilt of chickpea. Bioagents significantly reduced the wilt incidence, and increased seed germination and plant growth parameters as compared to chemical fungicides (Shabir-U-Rehman et al., 2014) They act against plant pathogens in several ways, either by mycoparasitism, antibiotic-mediated suppression, lytic enzymes and other by-products production, competition for nutrient, or induction of host resistance (Pal and Gardener 2011).

The mycoparasitism, antibiosis, competition for nutrients of space, tolerance to stress through enhanced root and plant development, induced resistance, solubilization and sequestration for inorganic nutrients and inactivation of the pathogen’s enzymes were important mechanisms of Trichoderma spp. against plant pathogens (Harman, 2000). 

1.2 Importance of Study

Genetic modification using mutagenesis offers the potential for producing improved bio-protection is likely to enhance their biocontrol capabilities against different soil borne pathogen. One attractive approach would be to select the stable and safe transgenic fungi with different genes coding for cell wall degrading enzymes (chitinase and glucanase and protease) which express co-ordinately to combat the phytopathogen. Chitin, glucan and proteins are the main structural components of fungal cell wall. In plants, induction of chitinase, glucanase and other hydrolytic enzymes is one of the coordinated, often complex and multifaceted defense mechanisms triggered in response to phytopathogen attack.     

Mutagenesis or protoplast fusion of biocontrol agents was applied to improve the antifungal production and antagonistic potential over a broad spectrum of phytopathogens, survival, longevity and activity. (Haggag et al., 2010). It is necessary to mutagenesis of the microorganisms including those used as bio control agents were applied to improve of the antifungal production and antagonistic potential over a broad spectrum of phytopathogens, survival, longevity and activity (Ximena et al., 2007 

1.3 Objectives of the Study

  • Induction of mutation in Trichoderma viride.
  • To assess the antagonistic effect of Trichoderma viride mutants against predominant soil borne pathogen.

1.4 Scope and Limitations

Trichoderma has been widely studied for their biocontrol ability, but Trichoderma have some limitations in their use as biocontrol agents in agriculture is due to the unpredictable efficiency which is affected by biotic and abiotic factors in soil. Hence it is essential to increase their bio control efficacy against targeted pathogen and to made it tolerant to environmental parameters, mutagenesis is the tool for improving genetic makeup of Bio agents.

Materials and Methods

The present investigation on “Improvement in bio control ability of Trichoderma viride through mutation” was carried out during 2019/2020 at Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola.

Ethyl methyl Sulphonate (EMS), Ethanol, Crab shell chitin, Sodium azide and others such as formaldehyde, Streptomycin Sulphate, mercuric chloride etc. Pure culture of Trichoderma viride culture was collected from the Department of Plant Pathology Dr. PDKV, Akola. Pure cultures of soil born pathogen viz., Rhizoctonia bataticola, Sclerotium rolfsii, and Fusarium oxysporum f. sp. ciceri were collected from Department of Plant Pathology, Dr. P.D.K.V, Akola.

Chemical Mutagenesis

Induction of Chemical mutagenesis was carried according to procedure of Chandra et al. (2009) and Durand et al. (1988): Conidiophores of 8 days old culture of T. viride were used for mutagenesis. Spore suspension of T. viride was treated with Ethyl Methyl Sulphonate (EMS) @ 100 μl/ml, 150 μl/ml, 200 μl/ml and 250µl/ml incubate at 280C in orbital shaker for 30 minutes. Then kept in centrifuge machine at 5000 rpm to remove the chemical traces, centrifuge it for three times and then washed with distilled water. Suspension was spread on to the surface PDA medium and incubated at 280C for 720 hour.

Same procedure was done for 45 minutes and 60 minutes. In each treatment maintained three replications. After incubation colonies were transferred on fresh PDA medium and grown up to six generations to check the stability of Trichoderma viride mutants.

Mutation induced by Gamma Radiation.

Induction of mutation by gamma radiation was carried according to the procedure of Gadgil et al. (1995), Migheli et al. (1998) and Rey et al. (2000) at Bhabha Atomic Research Centre, Mumbai. The 10 days sporulate culture of Trichoderma viride was irradiated with cobalt – 60 gamma radiation @ 41.6 gray/min. The applied doses level were 20 k-rad,30 k-rad,40 k-rad and 50 k-rad. After irradiation culture were transferred on fresh PDA medium and grown up to six generation to check the stability of Trichoderma viride mutants.

Dual culture Technique

Antagonistic activity of Trichoderma viride mother culture as well as mutants were assayed against Rhizoctonia bataticola, Sclerotium rolfsii, Fusarium oxysporum f.sp. udum and Fusarium oxysporum f. sp solani by using dual culture inoculation technique described by Vincent, (1927), Mandal et al., (1999) in Petri plates. Five mm disc from the periphery of actively growing pathogen on PDA was placed in centre of 90 mm diameter Petri plates containing PDA. Four discs of each actively growing mutants of Trichoderma viride were placed at equidistance on all four sides 30 mm apart from centre disc of pathogenic fungus. The plates were incubated at ambient condition under alternate dark and light cycle up to 7 days. 

                                                                  C – T 

Per cent Growth inhibition      = ––––––––– X 100

                                                                   C

Where, C = Mycelial growth (mm) in control plate.

T = Mycelial growth (mm) in treatment plate.

Results And Discussion:

This chapter deals with the results obtained on the basis of studies carried out and the fact along with the discussion hereunder.

Morphological characteristics of Trichoderma viride mutants at sixth generation

Efficacy of Trichoderma viride mother culture and mutants against Sclerotium rolfsii (per cent growth inhibition) at 7 DAI

Statistically significant differences were obtained among the T. viride mutants over control (mother culture). The superior treatment was T5 (TVME2b) mutant exhibited the highest inhibition to mycelial growth of Sclerotium rolfsii with an percentage 64.76%.which was at par with T6 (TVME2c),T9 (TVME3c) and T13 (TVGM1) i.e. 64.22, 63.08 and 62.93 % respectively. whereas T10 (TVME4a) showed lowest inhibition i.e. 52.56% against growth of Sclerotium rolfsii. Data presented in table 3.

Table 3. Efficacy of Trichoderma viride mother culture and mutants against Sclerotium rolfsii (per cent growth inhibition) at 7 DAI

Figure 1: Efficacy of Trichoderma viride mother culture and mutants against Sclerotium rolfsii at 7DAI

Induced mutation is one of the most widely used tools to get variants which might have improved biocontrol properties like survival ability, antagonistic and biocontrol potential and ability to colonize plant parts (Baker, 1991). Current findings are in agreement with Papavizas and Lewis (1982) who evaluated the UV induced biotypes of T. viride differed considerably from WT 6 in appearance, growth habit and fungitoxic metabolite production and also effectively arrested the growth of Rhizoctonia solani of cotton and radish and Sclerotium lepillorum of onion. Chaudhary (2009) also evaluated biopesticides Niprot (Trichoderma viride) for calibration of dosage extent and suppression of collar rot caused by S. rolfsii and observed that Niprot was able to suppress the disease. Mohamed et al. (2010) adopted UV treatment for mutagenesis of Trichoderma viride to enhance three effective hydrolytic enzymes viz., chitinase, β-1, 3- galactoronase and cellulases which having 

biocontrol abilities against S.rolfsii. In the present investigation efforts have been made to generate efficient mutants of T. viride having more antagonistic potential against soil borne pathogens and enzymic activities compared to mother culture.

4. Efficacy of Trichoderma viride mother culture and mutants against 

Rhizoctonia bataticola (per cent growth inhibition) at 7 DAI.

All the Trichoderma viride mutants were significant in inhibiting the radial mycelial growth of R. bataticola. The efficient treatment was T8 (TVME 3b) i.e. 64.19% which was at par with T5 (TVME2b) and T7 (TVME3a) i.e. 63.47 and 62.94%. The lowest per cent growth inhibition of Rhizoctonia bataticola was found by T16 (TVME4c) i.e. 45.42%. Data are presented in table 4.

PGI - Per cent growth inhibition

Patil and Kamble (2011) obtained five T. koningii mutants by UV treatments with different time variables. Among these five mutants T.koningii - 2 showed maximum antagonistic activity against R. bataticola causing charcoal rot in vitro.

Table 4. Efficacy of Trichoderma viride mother culture and mutants against Rhizoctonia bataticola (Percent growth inhibition) at 7DAI

Figure 2: Efficacy of Trichoderma viride mother culture and mutants against Rhizoctonia bataticola at 7 DAI

Efficacy of Trichoderma viride mother culture and mutants against 

Fusarium oxysporum f. sp.ciceri (per cent growth inhibition) at 7 DAI

All the Trichoderma viride mutants were significant in inhibiting the radial mycelial growth of Fusarium oxysporum f.sp.ciceri the efficient 

treatment was T5 (TVME 2b) i.e. 63.50% which was at par with T6 (TVME2c) T9(TVME3c) and T13 (TVGM1) i.e. 62.88 and 62.03 and 60.74%. The lowest per cent growth inhibition of Fusarium oxysporum f.sp.ciceri was found by T16 (TVGM4) i.e. 47.77 %. Data are presented in table 5.

                                                               
Table 5: Efficacy of Trichoderma viride mother culture and mutants against Fusarium oxysporum f. sp. ciceri (per cent growth inhibition) at 7 DAI

Figure 3: Efficacy of Trichoderma viride mother culture and mutants against Fusarium oxysporum f. sp. ciceri at 7DAI

Inhibition of Fusarium udum by Trichoderma was also reported by Papavizas (1985).Padamodaya and Reddy (1996) screened ten isolates of Trichoderma spp. For   arresting the growth of Fusarium oxysporum in vitro and reported that T. viride was highly inhibitory in dual culture. Present investigations are in agreement with Mohamed et al. (2006) who obtained two stable salt tolerant mutants having great biological proficiency against Fusarium oxysporum the causal agent of tomato wilt disease.

Conclusions and recommendation

The present work aimed to apply the mutagenesis and irradiation techniques for genetically improvement of the bioagents Trichoderma viride to enhance their biocontrol abilities against predominant soil borne fungal pathogens viz., Fusarium oxysporum f. sp. ciceri, Sclerotium rolfsii and Rhizoctonia bataticola. These are important soil borne fungal pathogens affecting wide range of hosts and have a worldwide distribution on numerous field crops and vegetables.

The present investigation entitled “Improvement in biocontrol ability of Trichoderma viride through mutation was carried out during 2019-20 at Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi vidyapeeth, Akola. The objectives of the studies were

1. Induction of mutation in Trichoderma viride.

2. To asses the antagonistic effect of Trichoderma viride against predominant soil borne pathogen.

Mutagenesis and irradiation was found to be the novel strategy for developing Trichoderma mutants with enhanced biocontrol abilities. Trichoderma viride mother culture obtained from Department of Plant Pathology, PGI, Dr. PDKV Akola and it was subjected to chemical mutagenesis i.e. Ethyl methane Sulphonate (EMS) @ 100,150,200 and 250 µl/ml for time interval at 30,45 and 60 minutes. The sporulate culture of Trichoderma viride irradiated at (cobalt-60) 0,20,30,40 and 50 k-rad, It was done at BARC, Mumbai. Total sixteen mutants were obtained from chemical mutagenesis and gamma irradiation. Mother culture of Trichoderma viride and its mutants were tested for their antagonistic potential against soil borne plant pathogens, viz., Sclerotium rolfsii, Rhizoctonia bataticola, Fusarium oxysporium f.sp.ciceri.by dual culture technique.

Morphological character of efficient mutants of Trichoderma viride were tested upto sixth generation to check their stability.  Trichoderma viride mutants exhibited morphological variation such as growth rate, colony diameter, colony type, colony colour, pigmentation, phialides, and sporulation. Mutants were differed in their biocontrol potential against soil borne pathogen as well as chitinase enzyme content.

Among the mutants most of them were found effective against Slerotium rolfsii, Rhizoctonia bataticola, Fusarium oxysporium f.sp. ciceri, than mother culture, in dual culture technique. The mutant TVME 3b, TVGM1, TVME2b and TVME2c exhibited maximum antagonistic activity against Slerotium rolfsii which showed, 65.10, 64.59, 64.47 and 62.37 per cent growth inhibition respectively. In case of Rhizoctonia bataticola, the mutants TVME 2b, TVME3b, TVME 1a and TVME2a exhibited maximum per cent growth inhibition i.e. 62.43,62.40,61.64 and 61.56 per cent respectively.Fusarium oxysporium f.sp.ciceri was also highly inhibited by mutants TVME 2b, TVME2c, TVME 3c and TVGM1 and it showed maximum per cent growth inhibition i.e. 61.68,60.60,59.41 and 58.90 per cent respectively. 

The mutants were assayed for estimation of chitinase enzyme and the mutants TVME 2b, TVME 2cand TVME 3c and TVGM1 found to possesses highest chitinase enzyme units/mg of protein i.e. 0.64, 0.63, 0.63 and 0.62 respectively.

Conclusions

  • The morphological character tested upto sixth generation to check their stability.There was existence of some morphological variation in mutants and mother culture of Trichoderma viride. Mutants were differed in their biocontrol potential against tested plant pathogen as well as chitinase enzyme units.
  • The mutants TVME 2b, TVME 2c, TVME 3c andTVGM1 were found effective against Slerotium rolfsii.
  • The mutants TVME 3b, TVME 2b, TVME 3a and TVME 3c were found effective against Rhizoctonia bataticola.
  • The mutants TVME 2b, TVME2c, TVME 3c and TVGM1 were found effective against Fusarium oxysporium f.sp. ciceri.
  • TVME 2b, TVME 2c and TVME 3c and TVGM1 found to possesses highest chitinase enzyme units/mg of protein i.e. 0.64, 0.63, 0.63 and 0.62 respectively

The ability of high quantum of chitinase with higher growth rate and sporulation was directly related to maximum inhibition ability of mutants.

References

Clearly Auctoresonline and particularly Psychology and Mental Health Care Journal is dedicated to improving health care services for individuals and populations. The editorial boards' ability to efficiently recognize and share the global importance of health literacy with a variety of stakeholders. Auctoresonline publishing platform can be used to facilitate of optimal client-based services and should be added to health care professionals' repertoire of evidence-based health care resources.

img

Virginia E. Koenig

Journal of Clinical Cardiology and Cardiovascular Intervention The submission and review process was adequate. However I think that the publication total value should have been enlightened in early fases. Thank you for all.

img

Delcio G Silva Junior

Journal of Women Health Care and Issues By the present mail, I want to say thank to you and tour colleagues for facilitating my published article. Specially thank you for the peer review process, support from the editorial office. I appreciate positively the quality of your journal.

img

Ziemlé Clément Méda

Journal of Clinical Research and Reports I would be very delighted to submit my testimonial regarding the reviewer board and the editorial office. The reviewer board were accurate and helpful regarding any modifications for my manuscript. And the editorial office were very helpful and supportive in contacting and monitoring with any update and offering help. It was my pleasure to contribute with your promising Journal and I am looking forward for more collaboration.

img

Mina Sherif Soliman Georgy

We would like to thank the Journal of Thoracic Disease and Cardiothoracic Surgery because of the services they provided us for our articles. The peer-review process was done in a very excellent time manner, and the opinions of the reviewers helped us to improve our manuscript further. The editorial office had an outstanding correspondence with us and guided us in many ways. During a hard time of the pandemic that is affecting every one of us tremendously, the editorial office helped us make everything easier for publishing scientific work. Hope for a more scientific relationship with your Journal.

img

Layla Shojaie

The peer-review process which consisted high quality queries on the paper. I did answer six reviewers’ questions and comments before the paper was accepted. The support from the editorial office is excellent.

img

Sing-yung Wu

Journal of Neuroscience and Neurological Surgery. I had the experience of publishing a research article recently. The whole process was simple from submission to publication. The reviewers made specific and valuable recommendations and corrections that improved the quality of my publication. I strongly recommend this Journal.

img

Orlando Villarreal

Dr. Katarzyna Byczkowska My testimonial covering: "The peer review process is quick and effective. The support from the editorial office is very professional and friendly. Quality of the Clinical Cardiology and Cardiovascular Interventions is scientific and publishes ground-breaking research on cardiology that is useful for other professionals in the field.

img

Katarzyna Byczkowska

Thank you most sincerely, with regard to the support you have given in relation to the reviewing process and the processing of my article entitled "Large Cell Neuroendocrine Carcinoma of The Prostate Gland: A Review and Update" for publication in your esteemed Journal, Journal of Cancer Research and Cellular Therapeutics". The editorial team has been very supportive.

img

Anthony Kodzo-Grey Venyo

Testimony of Journal of Clinical Otorhinolaryngology: work with your Reviews has been a educational and constructive experience. The editorial office were very helpful and supportive. It was a pleasure to contribute to your Journal.

img

Pedro Marques Gomes

Dr. Bernard Terkimbi Utoo, I am happy to publish my scientific work in Journal of Women Health Care and Issues (JWHCI). The manuscript submission was seamless and peer review process was top notch. I was amazed that 4 reviewers worked on the manuscript which made it a highly technical, standard and excellent quality paper. I appreciate the format and consideration for the APC as well as the speed of publication. It is my pleasure to continue with this scientific relationship with the esteem JWHCI.

img

Bernard Terkimbi Utoo

This is an acknowledgment for peer reviewers, editorial board of Journal of Clinical Research and Reports. They show a lot of consideration for us as publishers for our research article “Evaluation of the different factors associated with side effects of COVID-19 vaccination on medical students, Mutah university, Al-Karak, Jordan”, in a very professional and easy way. This journal is one of outstanding medical journal.

img

Prof Sherif W Mansour

Dear Hao Jiang, to Journal of Nutrition and Food Processing We greatly appreciate the efficient, professional and rapid processing of our paper by your team. If there is anything else we should do, please do not hesitate to let us know. On behalf of my co-authors, we would like to express our great appreciation to editor and reviewers.

img

Hao Jiang

As an author who has recently published in the journal "Brain and Neurological Disorders". I am delighted to provide a testimonial on the peer review process, editorial office support, and the overall quality of the journal. The peer review process at Brain and Neurological Disorders is rigorous and meticulous, ensuring that only high-quality, evidence-based research is published. The reviewers are experts in their fields, and their comments and suggestions were constructive and helped improve the quality of my manuscript. The review process was timely and efficient, with clear communication from the editorial office at each stage. The support from the editorial office was exceptional throughout the entire process. The editorial staff was responsive, professional, and always willing to help. They provided valuable guidance on formatting, structure, and ethical considerations, making the submission process seamless. Moreover, they kept me informed about the status of my manuscript and provided timely updates, which made the process less stressful. The journal Brain and Neurological Disorders is of the highest quality, with a strong focus on publishing cutting-edge research in the field of neurology. The articles published in this journal are well-researched, rigorously peer-reviewed, and written by experts in the field. The journal maintains high standards, ensuring that readers are provided with the most up-to-date and reliable information on brain and neurological disorders. In conclusion, I had a wonderful experience publishing in Brain and Neurological Disorders. The peer review process was thorough, the editorial office provided exceptional support, and the journal's quality is second to none. I would highly recommend this journal to any researcher working in the field of neurology and brain disorders.

img

Dr Shiming Tang

Dear Agrippa Hilda, Journal of Neuroscience and Neurological Surgery, Editorial Coordinator, I trust this message finds you well. I want to extend my appreciation for considering my article for publication in your esteemed journal. I am pleased to provide a testimonial regarding the peer review process and the support received from your editorial office. The peer review process for my paper was carried out in a highly professional and thorough manner. The feedback and comments provided by the authors were constructive and very useful in improving the quality of the manuscript. This rigorous assessment process undoubtedly contributes to the high standards maintained by your journal.

img

Raed Mualem

International Journal of Clinical Case Reports and Reviews. I strongly recommend to consider submitting your work to this high-quality journal. The support and availability of the Editorial staff is outstanding and the review process was both efficient and rigorous.

img

Andreas Filippaios

Thank you very much for publishing my Research Article titled “Comparing Treatment Outcome Of Allergic Rhinitis Patients After Using Fluticasone Nasal Spray And Nasal Douching" in the Journal of Clinical Otorhinolaryngology. As Medical Professionals we are immensely benefited from study of various informative Articles and Papers published in this high quality Journal. I look forward to enriching my knowledge by regular study of the Journal and contribute my future work in the field of ENT through the Journal for use by the medical fraternity. The support from the Editorial office was excellent and very prompt. I also welcome the comments received from the readers of my Research Article.

img

Dr Suramya Dhamija

Dear Erica Kelsey, Editorial Coordinator of Cancer Research and Cellular Therapeutics Our team is very satisfied with the processing of our paper by your journal. That was fast, efficient, rigorous, but without unnecessary complications. We appreciated the very short time between the submission of the paper and its publication on line on your site.

img

Bruno Chauffert

I am very glad to say that the peer review process is very successful and fast and support from the Editorial Office. Therefore, I would like to continue our scientific relationship for a long time. And I especially thank you for your kindly attention towards my article. Have a good day!

img

Baheci Selen

"We recently published an article entitled “Influence of beta-Cyclodextrins upon the Degradation of Carbofuran Derivatives under Alkaline Conditions" in the Journal of “Pesticides and Biofertilizers” to show that the cyclodextrins protect the carbamates increasing their half-life time in the presence of basic conditions This will be very helpful to understand carbofuran behaviour in the analytical, agro-environmental and food areas. We greatly appreciated the interaction with the editor and the editorial team; we were particularly well accompanied during the course of the revision process, since all various steps towards publication were short and without delay".

img

Jesus Simal-Gandara

I would like to express my gratitude towards you process of article review and submission. I found this to be very fair and expedient. Your follow up has been excellent. I have many publications in national and international journal and your process has been one of the best so far. Keep up the great work.

img

Douglas Miyazaki

We are grateful for this opportunity to provide a glowing recommendation to the Journal of Psychiatry and Psychotherapy. We found that the editorial team were very supportive, helpful, kept us abreast of timelines and over all very professional in nature. The peer review process was rigorous, efficient and constructive that really enhanced our article submission. The experience with this journal remains one of our best ever and we look forward to providing future submissions in the near future.

img

Dr Griffith

I am very pleased to serve as EBM of the journal, I hope many years of my experience in stem cells can help the journal from one way or another. As we know, stem cells hold great potential for regenerative medicine, which are mostly used to promote the repair response of diseased, dysfunctional or injured tissue using stem cells or their derivatives. I think Stem Cell Research and Therapeutics International is a great platform to publish and share the understanding towards the biology and translational or clinical application of stem cells.

img

Dr Tong Ming Liu

I would like to give my testimony in the support I have got by the peer review process and to support the editorial office where they were of asset to support young author like me to be encouraged to publish their work in your respected journal and globalize and share knowledge across the globe. I really give my great gratitude to your journal and the peer review including the editorial office.

img

Husain Taha Radhi

I am delighted to publish our manuscript entitled "A Perspective on Cocaine Induced Stroke - Its Mechanisms and Management" in the Journal of Neuroscience and Neurological Surgery. The peer review process, support from the editorial office, and quality of the journal are excellent. The manuscripts published are of high quality and of excellent scientific value. I recommend this journal very much to colleagues.

img

S Munshi

Dr.Tania Muñoz, My experience as researcher and author of a review article in The Journal Clinical Cardiology and Interventions has been very enriching and stimulating. The editorial team is excellent, performs its work with absolute responsibility and delivery. They are proactive, dynamic and receptive to all proposals. Supporting at all times the vast universe of authors who choose them as an option for publication. The team of review specialists, members of the editorial board, are brilliant professionals, with remarkable performance in medical research and scientific methodology. Together they form a frontline team that consolidates the JCCI as a magnificent option for the publication and review of high-level medical articles and broad collective interest. I am honored to be able to share my review article and open to receive all your comments.

img

Tania Munoz

“The peer review process of JPMHC is quick and effective. Authors are benefited by good and professional reviewers with huge experience in the field of psychology and mental health. The support from the editorial office is very professional. People to contact to are friendly and happy to help and assist any query authors might have. Quality of the Journal is scientific and publishes ground-breaking research on mental health that is useful for other professionals in the field”.

img

George Varvatsoulias

Dear editorial department: On behalf of our team, I hereby certify the reliability and superiority of the International Journal of Clinical Case Reports and Reviews in the peer review process, editorial support, and journal quality. Firstly, the peer review process of the International Journal of Clinical Case Reports and Reviews is rigorous, fair, transparent, fast, and of high quality. The editorial department invites experts from relevant fields as anonymous reviewers to review all submitted manuscripts. These experts have rich academic backgrounds and experience, and can accurately evaluate the academic quality, originality, and suitability of manuscripts. The editorial department is committed to ensuring the rigor of the peer review process, while also making every effort to ensure a fast review cycle to meet the needs of authors and the academic community. Secondly, the editorial team of the International Journal of Clinical Case Reports and Reviews is composed of a group of senior scholars and professionals with rich experience and professional knowledge in related fields. The editorial department is committed to assisting authors in improving their manuscripts, ensuring their academic accuracy, clarity, and completeness. Editors actively collaborate with authors, providing useful suggestions and feedback to promote the improvement and development of the manuscript. We believe that the support of the editorial department is one of the key factors in ensuring the quality of the journal. Finally, the International Journal of Clinical Case Reports and Reviews is renowned for its high- quality articles and strict academic standards. The editorial department is committed to publishing innovative and academically valuable research results to promote the development and progress of related fields. The International Journal of Clinical Case Reports and Reviews is reasonably priced and ensures excellent service and quality ratio, allowing authors to obtain high-level academic publishing opportunities in an affordable manner. I hereby solemnly declare that the International Journal of Clinical Case Reports and Reviews has a high level of credibility and superiority in terms of peer review process, editorial support, reasonable fees, and journal quality. Sincerely, Rui Tao.

img

Rui Tao

Clinical Cardiology and Cardiovascular Interventions I testity the covering of the peer review process, support from the editorial office, and quality of the journal.

img

Khurram Arshad

Clinical Cardiology and Cardiovascular Interventions, we deeply appreciate the interest shown in our work and its publication. It has been a true pleasure to collaborate with you. The peer review process, as well as the support provided by the editorial office, have been exceptional, and the quality of the journal is very high, which was a determining factor in our decision to publish with you.

img

Gomez Barriga Maria Dolores

The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews journal clinically in the future time.

img

Lin Shaw Chin

Clinical Cardiology and Cardiovascular Interventions, I would like to express my sincerest gratitude for the trust placed in our team for the publication in your journal. It has been a true pleasure to collaborate with you on this project. I am pleased to inform you that both the peer review process and the attention from the editorial coordination have been excellent. Your team has worked with dedication and professionalism to ensure that your publication meets the highest standards of quality. We are confident that this collaboration will result in mutual success, and we are eager to see the fruits of this shared effort.

img

Maria Dolores Gomez Barriga

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, I hope this message finds you well. I want to express my utmost gratitude for your excellent work and for the dedication and speed in the publication process of my article titled "Navigating Innovation: Qualitative Insights on Using Technology for Health Education in Acute Coronary Syndrome Patients." I am very satisfied with the peer review process, the support from the editorial office, and the quality of the journal. I hope we can maintain our scientific relationship in the long term.

img

Dr Maria Dolores Gomez Barriga

Dear Monica Gissare, - Editorial Coordinator of Nutrition and Food Processing. ¨My testimony with you is truly professional, with a positive response regarding the follow-up of the article and its review, you took into account my qualities and the importance of the topic¨.

img

Dr Maria Regina Penchyna Nieto

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, The review process for the article “The Handling of Anti-aggregants and Anticoagulants in the Oncologic Heart Patient Submitted to Surgery” was extremely rigorous and detailed. From the initial submission to the final acceptance, the editorial team at the “Journal of Clinical Cardiology and Cardiovascular Interventions” demonstrated a high level of professionalism and dedication. The reviewers provided constructive and detailed feedback, which was essential for improving the quality of our work. Communication was always clear and efficient, ensuring that all our questions were promptly addressed. The quality of the “Journal of Clinical Cardiology and Cardiovascular Interventions” is undeniable. It is a peer-reviewed, open-access publication dedicated exclusively to disseminating high-quality research in the field of clinical cardiology and cardiovascular interventions. The journal's impact factor is currently under evaluation, and it is indexed in reputable databases, which further reinforces its credibility and relevance in the scientific field. I highly recommend this journal to researchers looking for a reputable platform to publish their studies.

img

Dr Marcelo Flavio Gomes Jardim Filho

Dear Editorial Coordinator of the Journal of Nutrition and Food Processing! "I would like to thank the Journal of Nutrition and Food Processing for including and publishing my article. The peer review process was very quick, movement and precise. The Editorial Board has done an extremely conscientious job with much help, valuable comments and advices. I find the journal very valuable from a professional point of view, thank you very much for allowing me to be part of it and I would like to participate in the future!”

img

Zsuzsanna Bene

Dealing with The Journal of Neurology and Neurological Surgery was very smooth and comprehensive. The office staff took time to address my needs and the response from editors and the office was prompt and fair. I certainly hope to publish with this journal again.Their professionalism is apparent and more than satisfactory. Susan Weiner

img

Dr Susan Weiner

My Testimonial Covering as fellowing: Lin-Show Chin. The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews.

img

Lin-Show Chin

My experience publishing in Psychology and Mental Health Care was exceptional. The peer review process was rigorous and constructive, with reviewers providing valuable insights that helped enhance the quality of our work. The editorial team was highly supportive and responsive, making the submission process smooth and efficient. The journal's commitment to high standards and academic rigor makes it a respected platform for quality research. I am grateful for the opportunity to publish in such a reputable journal.

img

Sonila Qirko

My experience publishing in International Journal of Clinical Case Reports and Reviews was exceptional. I Come forth to Provide a Testimonial Covering the Peer Review Process and the editorial office for the Professional and Impartial Evaluation of the Manuscript.

img

Luiz Sellmann