Dr. R. Ramesh

Principal Scientist (Plant Pathology) & Section in-charge (Crop Science)

 

 

 

 

 

                                                                Address: G-4, Crop Improvement and Protection (Crop Science)

                                                                ICAR - CCARI,               

                                                                Old Goa 403 402

                                                                Phone: 832-2284678 Ext. 103

                                                                Fax: 0832-2285649

                                                                Email:  r.ramesh@icar.gov.in

 

 

 

Phone: 0832-2284678 Ext. 125

Academic background:

Ph. D (Plant Pathology) from Tamil Nadu Agricultural University, 2000

M. Sc. (Ag) Plant Pathology from Tamil Nadu Agricultural University, (1997

B. Sc (Ag) from Tamil Nadu Agricultural University, 1994

 

Research interests and current focus

My research area is management of plant diseases of economic importance. I am working on biological control of plant diseases using antagonistic bacteria for the last 10 years and I study bacterial diseases of crop plants especially on R. solanacearum for the past 5 years.  Promising biocontrol agents were identified and evaluated for the management of major soil borne diseases in brinjal, groundnut and mango. Promising antagonistic bacteria were characterized using molecular biology tools and their mechanism of antagonism is being studied. Field application of antagonists was standardized using carrier based formulation.

Major areas of R. solanacearum research include phenotype based characterization to genome sequence based fingerprinting of R. solanacearum through pulsed field gel electrophoresis (PFGE), REP-PCR and Multilocus Sequence typing (MLST). Molecular diagnosis of the plant pathogens especially R. solanacearum and host resistance for bacterial wilt management is other important areas of my research. For the first time, my group used PFGE to characterize the R. solanacearum population, which would have epidemiological/quarantine implications.

Maintaining a collection of more than 230 isolates of R. solanacearum infecting tomato, eggplant, chillies from five states. This is the highest number of characterized R. solanacearum isolates being maintained in a centre. Under outreach project on wilt diseases (PhytoFuRa), we identified promising biocontrol bacteria and evaluated their efficiency in the management of bacterial wilt. Our research group Identified stable sources of bacterial wilt resistance in solanaceaous vegetable especially in eggplant which could be used in understanding the mechanisms of bacterial wilt resistance and breeding for wilt resistant varieties in eggplant.

Current focus includes standardization of management practices to the major soil borne diseases affecting vegetables and spices. Our lab focuses on the use of novel, non-conventional strategies for the pathogen control. Pathogen detection and disease diagnosis using conventional and biotechnological techniques is an integral part of our core research area. Further, host-pathogen interaction in bacterial wilt system by phenomics and genomics approach is identified as an important area of study.

Outreach and extension

I visit farmer’s field to attend the field problems related to plant diseases. The cause of the problem is identified and management practices are recommended. Farmers’ awareness programmes about the plant disease management are conducted regularly and farmers visit to our experiment field on bacterial wilt management during 2011. Filed demonstrations on plant disease management using biocontrol agents were conducted across vegetable growing villages.

I organized Entrepreneurship and Skill Development Programme in Biotechnology (Bio-fertilizers & Bio-pesticides) from 26th March to 22nd April, 2008. In the four weeks programme, both lectures and practical demonstrations on various aspects on production of bio-pesticides and bio-fertilizers will be conducted covering a wide range of topics on various technical aspects in addition to sessions on entrepreneurship development, including financial assistance.

State level training programme on Pest and Disease Management of major spice crops of Goa was conducted in 2011. Over seventy five farmers from across the state and nine agricultural officers from the state department of agriculture participated in the programme. Two one-day awareness programme on “Management of Pepper diseases in the plantation” was conducted in 2011 at farmers villages of Goa in association with Zonal Agricultural Offices.  

National symposium on “Microbial diversity and its applications in health, agriculture and industry” was organized during March 4-5, 2011. I involved in organizing the event as a Co-organizing secretary. Four days National workshop on “Molecular subtyping of microbes using Pulsed Field Gel Electrophoresis was organized during 20-23 August, 2011 with the financial support from Department of biotechnology, GOI. I worked as workshop co-coordinator.

 

Membership in professional societies        

  1. Indian Phytopathological Society, IARI, New Delhi, India

  2. Plant Protection Association of India, NBPGR, Hyderabad, India

  3. Society for Biocontrol Advancement, NBAII, Bangalore, India

  4. Indian society of vegetable sciences, IIVR, Varanasi, India

  5. Association of Coastal Agricultural Research, ICAR RC, Goa, India

  6. National Academy of Biological Sciences, Chennai. 

  7. Asian PGPR Society of Sustainable Agriculture, USA

Awards and honours

  • DBT- CREST award (Cutting Edge Research Enhancement and Scientific Training Awards) 2010-11 for pursuing advanced research at University of Georgia, Athens, United States for one year.

  • Conferred Fellow of National Academy of Biological Sciences (FNABS) by National Academy of Biological Sciences, Chennai, India

Academic/ Student advising

·    Research guide for three Ph. D students from Dept. of Microbiology, Goa University

·    Dissertation guide for Masters Students (over 15) of Biotechnology/Microbiology from various universities

 

Research Publications

Journals

  • Ramesh, R. and Singh, N.P. 2017. Field evaluation of talc formulation of Trichoderma for the management of Fusarium wilt in watermelon. Indian Phytopathology, 70 (1): 75-79. DOI 10.24838/ip.2017.v70.i1.49000​

  • Ramesh, R., Achari, G., Asolkar, T., DSouza, M. and Singh, N.P. 2016.  Management of bacterial wilt of brinjal using wild brinjal (Solanum torvumSw) as root stock. Indian Phytopathology, 69 (3):260-265.

  • Mahajan, G.R., Manjunath, B.L., Singh, N.P., Ramesh, R., Latare A.M., D’Souza, R., Barnes, N. and Kulkarni, R. 2016. Effect of organic and inorganic sources of nutrients on soil microbial activity and soil organic carbon build up under rice in west coast of India. Archives of Agronomy and Soil Science. doi: 10.1080/03650340.2016.1213813

  • Manjunath, B.L., Mahajan, G.R., Ramesh, R. and Singh, N.P. 2016. Effect of improved nutrient management on grain yield of rice (Oryza sativa L.,) and soil health under organic management, Indian Journal of Agronomy, 61 (1) : 25-32.

  • Gaitonde, S. and Ramesh, R. Screening plant products for Ralstonia solanacearum inhibition and characterization of antibacterial compounds in Garcinia indicaTamarindus indica. Proceedings of National Academy of Sciences, India Section B: Biological Sciences (Accepted article) DOI: 10.1007/s40011-016-0755-6

  • Achari, G.A. and Ramesh, R. 2015. Characterization of bacteria degrading 3-hydroxy palmitic acid methyl ester (3OH-PAME), a quorum sensing molecule of Ralstonia solanacearum. Letters in Applied Microbiology. 60 (5): 447-455. doi: 10.1111/lam.12389.

  • Ramesh, R., Achari, G.A. and Gaitonde, S. 2014. Genetic diversity of Ralstonia solanacearum infecting solanaceous vegetables from India reveals the existence of unknown or newer sequevars of Phylotype I strains. European Journal of Plant Pathology. 140 (3): 543-562.  doi:10.1007/s10658-014-0487-5.

  • Ramesh, R., Gaitonde, S., Achari, G., Asolkar, T., Singh, N.P., Carrere, S., Genin, S. and Peeters, N. 2014.  Genome sequencing of Ralstonia solanacearum biovar 3, phylotype I strains Rs-09-161 and Rs-10-244, isolated from eggplant and chilli in India. Genome Announc. 2(3):e00323-14. doi:10.1128/genomeA.00323-14.

  • Achari, G.A. and Ramesh, R. 2014. Diversity, biocontrol, and plant growth promoting abilities of xylem residing bacteria from solanaceous crops. International Journal of Microbiology, vol. 2014, Article ID 296521, 14 pages, doi:10.1155/2014/296521

  • Gaitonde, S. and Ramesh, R. 2014. Genetic characterization of Ralstonia solanacearum infecting eggplant Solanum melongena L. from Goa and Western region of India. International Journal of Current Science. 12: E128-139.

  • Ramesh, R. and Phadke, G.S. 2012. Rhizosphere and endophytic bacteria for the suppression of eggplant wilt caused by Ralstonia solanacearum. Crop Protection. 37: 35-41.  DOI:10.1016/j.cropro.2012.02.008

  • Manjunath, B.L., Verma, R.R., Ramesh, R. and Singh, N.P. 2012. Evaluation of varieties and local manorial sources for organic rice (Oryza sativa) production. Indian Journal of Agronomy 57 (3): 241-244.

  • Ramesh, R., Anthony, J., Jaxon, T.C.D., Gaitonde, S. and Achari, G. 2011. PCR based sensitive detection of Ralstonia solanacearum from soil, eggplant, seeds and weeds. Archives of phytopathology and plant protection. 44 (19): 1908-1919. DOI: 10.1080/03235408.2010.516087 

  • Godinho, A., Ramesh, R. and Bhosle, S. 2010. Bacteria from sand dunes of Goa promoting growth in eggplant. World journal of agricultural sciences. 6: 555-564.

  • Ramesh, R. and Korikanthimath, V. S. 2010. Seed treatment with bacterial antagonists – A simple technology to manage groundnut root rot under residual moisture conditions. Journal of Biological Control 24: 58-64.

  • Manjunath, B.L., Ramesh, R. and Korikanthimath, V.S. 2010. Feasibility of ramie intercropping in coconut. Journal of plantation crops. 38: 201-210.

  • Ramesh, R., Joshi, A. A and Ghanekar, M.P. 2009. Pseudomonads: major antagonistic endophytic bacteria to suppress bacterial wilt pathogen, Ralstonia solanacearum in the eggplant (Solanum melongena L.). World Journal of Microbiology and Biotechnology 25:47–55. DOI:10.1007/s11274-008-9859-3

  • Ramesh, R., Ghanekar, M.P. and Joshi, A. A. 2009. Potential rhizobacteria for the suppression of bacterial wilt pathogen, Ralstonia solanacearum in eggplant (Solanum melongena L.). Vegetable Science 36: 193-199.

  • Loganathan, M., Rai, A. B., Ramesh, R., Sharma, B. K., Rai, R. K. and Rai, M. 2009. Vascular wilt diseases- A menace

  • in vegetable crops. Vegetable Science 36: 1-13.

  • Ramesh, R., Mathew, T. and Singh, N. 2009. Role of Chitinolytic enzymes and volatile compounds produced by endophytic bacteria in the inhibition of mango (Mangifera indica L.) root rot pathogens. Journal of Biological Control. 23: 433-441.

  • Satarkar, V.R., Faleiro, J.R., Krishnamurthy, S.V., Ramesh, R. and Verghese, A. 2009. A review on the behavior of Bactrocera fruit flies. Current Biotica 3: 264-277.

  • Ramesh, R. 2006. Field Evaluation of Biological Control Agents for the Management of Ralstonia solanacearum in Brinjal. Journal of Mycology and Plant Pathology 36 (2): 327-328.

  • Ramesh, R. and Korikanthimath, V.S. 2006. Management of Groundnut Root Rot by Trichoderma viride and Pseudomonas fluorescens Under Rainfed Conditions. Indian Journal of Plant Protection 34 (2): 239-241.

  • Manjunath, B.L., Korikanthimath, V,S., Faleiro, J.R. and Ramesh, R. 2005. Selection of leguminous crops and varieties for upland cultivation in coastal ecosystem. Journal of Farming System Research 11: 77-79.

  • Ramesh, R. 2004. Management of damping- off in brinjal using biocontrol agents. Journal of Mycology and Plant Pathology 34 (2): 666-670.

  • Ramesh, R. and Korikanthimath, V.S. 2004. Fungal and Bacterial Antagonists for the Management of Damping off and Wilt in Brinjal. Indian Journal of Plant Protection 32 (2): 80-84.

  • Ramesh, R., Faleiro, J.R and Korikanthimath, V.S. 2004. A new report on leaf rot of coconut (Cocus nucifera L.) caused by Chalaropsis thielavioides (Peyr.) and Botryodiplodia theobromae (Pat.). Journal of Mycology and Plant Pathology 34 (2): 210-211.

 Books, book chapters

  • Ramesh, R. 2016. Management of Plant Pathogens. In: Arbuscular mycorrizal fungi in fruit crop production. 2016. (Eds.) Sukhada Mohandas and P. Panneerselvam. Daya Publishing House, A division of Astral International Pvt. Ltd. New Delhi pp 194-230. ISBN: 9789351246640.

  • Microbial diversity and its applications. 2013. (Eds. S.B. Barbuddhe, R. Ramesh and N.P. Singh). New India Publishing Agency, New Delhi p244. ISBN: 9789381450666

  • Ramesh, R., Gaitonde, S. and Achari, G. 2013. Genetic diversity of Ralstonia solanacearum, a phytopathogenic bacterium infecting solanaceous vegetables using REP-PCR and PFGE. In: (Microbial diversity and its applications. 2013. (Eds.) S.B. Barbuddhe, R. Ramesh and N.P. Singh). New India Publishing Agency, New Delhi pp119-128. ISBN: 9789381450666

  • Ramesh, R. and Korikanthimath, V.S. 2010. Consortium of antagonistic bacteria improves growth in eggplant (Solanum melanogena L.). In: Plant growth promotion by rhizobacteria for sustainable agricultre (Eds. Reddy, M.S., Desai, S., Sayyed, R.Z., Sarma, Y.R., Rao, V.K., Reddy, B.C., Reddy, K.R.K., Podile, A.R. and Kloepper, J.W.) Scientific Publishers (India) pp 132-135. ISBN: 9788172336608

  • Ramesh, R., Phadke, G. S. and Bhosle, S. 2010. Inhibition of Ralstonia solanacearum by antagonistic bacteria: mechanisms of antagonism. In: Plant growth promotion by rhizobacteria for sustainable agricultre (Eds. Reddy, M.S., Desai, S., Sayyed, R.Z., Sarma, Y.R., Rao, V.K., Reddy, B.C., Reddy, K.R.K., Podile, A.R. and Kloepper, J.W.) Scientific Publishers (India) pp 136-141. ISBN: 9788172336608

  • Ramesh, R. and Manjunath, B.L. 2002. Effect of recycled manurial resources, use of biocontrol agents and fungicides on the incidence of brinjal wilt. In: Resource management in plant protection Vol. II (Ed. Sarathbabu, S., Varaprasad, K.S., Anitha, K., Prasadarao, R.D.V.J., Chakrabarty, S.K. and Chandurkar, P.S.). Plant Protection Association of India, NPPTI, Hyderabad. India. 15-18.

Others

  • Ramesh, R. and Maruthadurai, R. 2014. Manual on diagnosis of insect pests and diseases of plantation and spice crops of Goa. Technical Bulletin No. 38. ICAR RC for Goa, Old Goa. Goa, India P 58.

  • Ramesh, R., Maruthadurai, R. and Singh, N.P. 2013. Management of fruit rot (Koleroga/ Mahali) disease of arecanut. Extension folder No. 67. ICAR RC for Goa, Old Goa.

  • Ramesh, R., Maruthadurai, R. and Singh, N.P. 2013. Management of bud rot disease in the coconut plantations of Goa. Extension folder No. 66. ICAR RC for Goa, Old Goa.

  • Ramesh, R., Manjunath, B.L., Maruthadurai, R., Mahajan, G.R. and Singh, N.P. 2013. Cowpea- Production guidelines. Extension folder No. 65. ICAR RC for Goa, Old Goa.

  • Ramesh, R., Manjunath, B.L., Maruthadurai, R., Mahajan, G.R. and Singh, N.P. 2013. Watermelon- Production guidelines. Extension folder No. 64. ICAR RC for Goa, Old Goa.

  • Manjunath, B.L., Ramesh, R. Maruthadurai, R. Prabhudesai, H.R. and Singh, N.P. 2013. Technology package for higher productivity and profitability of Goa Local cowpea. Technical Bulletin No. 31, ICAR Research Complex for Goa, Old Goa 403 402, Goa, India. Pp 1-16.

  • Ramesh, R. 2011. Management of pepper wilt diseases in the plantation- Extension Folder No. 42/ 2011. ICAR Research Complex for Goa, Old Goa

  • Manjunath, B.L., Prabhudesai, Ramesh, R., Manohar, K.K. and Singh, N.P. 2011. Improved production technology for rice in Goa. Technical Bulletin No.: 24, ICAR Research Complex for Goa, Ela, Old Goa 403402, Goa, India. Pp: 1-18.

  • Barbuddhe, S.B., Ramesh, R., Doijad, S.P., Poharkar, K.V., Achari, G., Gaitonde, S. and D’Costa, D. 2011. Training Manual on “Molecular subtyping of microbes using pulsed field gel electrophoresis. ICAR Research Complex for Goa. P40

  • Manjunath, B.L., Prabhudesai,H.R.  Ramesh, R., Faleiro, J. R. and Singh, N.P. 2010. Rice based cropping/farming systems for higher productivity and profitability. Technical Bulletin No.: 22, ICAR Research Complex for Goa, Ela, Old Goa 403402, Goa, India. Pp: 1-46.

  • Ramesh, R. 2009. Management of seedling mortality in mango nursery - Technical Folder No. 35. ICAR RC for Goa, Old Goa.

  • Thangam, M., Ramachandrudu, K., Ladaniya, M.S., Mathew, P. A. and Ramesh, R. 2009. Three decades of research on vegetable crops in Goa. Technical Bulletin No.: 18, ICAR Research Complex for Goa, Ela, Old Goa 403402, Goa, India pp1-39.

  • Manjunath, B.L., Prabhudesai, H. R., Wasnik, H. M., Faleiro, J. R., Ramesh, R. and Talaulikar, S. 2009. Glimpses of Three Decades of Rice Research in Goa. Technical Bulletin No.: 19, ICAR Research Complex for Goa, Ela, Old Goa 403402, Goa, India. Pp: 1-39.

  • Ramesh, R. 2008. Bacterial wilt in brinjal and its management- Technical Bulletin No. 10. ICAR RC for Goa, p10.

  • R. Ramesh, J.R. Faleiro. 2008. Training manual on ESDP on Biotechnology (Bio-fertilizers & Bio-pesticides). ICAR RC for Goa. p126.

  • Faleiro, J.R. and Ramesh, R. 2007. Integrated pests and diseases management in coconut plantations. Crop Care.  59-65