Dr. R Rangeshwaran
Principal Scientist
Division of Molecular Entomology
E-mail: rangeshw@rediffmail.com
Fax:080-2341 1961
Phone:080-2351 1982 Extn. 356/ M:9449006823
Qualification M.Sc., Ph.D (Microbiology)
Specialization Microbiology
Professional Experience 13 years
Publications 30
Training (International)
“Bioinformatics Applications in Crop Science” at Unit of Simulation and Informatics, IARI, New Delhi from 21-23 December, 2009
“Project Management and Evaluation in Agriculture and Livelihood Projects” held at National Institute of Rural Development, Hyderabad from 9th to 13th March 2009.
“Biointensive integrated management of insect pests and diseases of crops” at DOR, Hyderabad, from Nov 9-29, 2005
‘Biological and DNA electron microscopy’ at CCMB, 1-15 June, 1991, Hyderabad
ICAR junior fellowship
2. Best poster award in National Symposium on ‘Ecofriendly approaches in the management of plant disease’ for research work titled “A modified liquid medium for mass production of Trichoderma by fermentation process” by R.D. Prasad and R. Rangeshwaran, held at Shimoga, 1998.
3. P. R. Verma award for best research paper at 3rd Global Conference on plant pathology and food security held at MPUAT, Udaipur in Jan 10-13, 2012. Rajalakshmi, S. Keshgod, M. K. Naik, R. Rangeshwaran and Ashwitha, K. Isolation and molecular characterization of indigenous fluorescent pseudomonads for a broad spectrum antibiotic 2, 4-Diacetyl phloroglucinol (DAPG) gene for biocontrol.
Brief Achievements
Fermentation and formulation of water based flowable Bacillus thuringiensis 20% a.i. standardized. Technology submitted to NAIP & DBT (Liquid Formulation (20% a.i.) of Indigenous Bacillus thuringiensis (PDBCBT1) for control of Lepidopterous Pests) for commercial uptake
Characterized four indigenous B. thuringiensis isolates toxic to lepidopterous pests, liquid formulation field evaluated at NBAII farm and also at AICRP centres
Characterized 104 Pseudomonas isolates for biocontrol PGPR and ISR activity. Improved talc based formulations developed
Identified 42 Pseuodomonas isolates having saline and temperature tolerance. All identified by 16s rDNA analysis and accession numbers obtained from Genbank
Identified and characterized endophytic bacteria occurring in chickpea, cotton, pigeon pea and tomato
Selected Publications
R. Rangeshwaran, K. Ashwitha, G. Sivakumar and S. K. Jalali. 2013. Analysis of proteins expressed by an abiotic stress tolerant Pseudomonas putida (NBAII-RPF9) isolate under saline and high temperature conditions. Current Microbiology (Accepted). NAAS rating 7.6.
Prasad, R. D., Rangeshwaran, R., Hegde, S. V. Anuroop, C.P. 2002. Effect of soil and seed application of Trichoderma harzianum on pigeonpea wilt caused by Fusarium udum under field conditions. Crop-Protection, 21: 293-297. NAAS rating 7.5
R. Rangeshwaran , N. V. Vajid, B. Ramanujam, S. Sriram, T. V. Bhaskaran and Satendar Kumar, 2010. Additives in powder based formulation for enhanced shelf life of Pseudomonas fluorescens and Bacillus spp. Journal of Biological Control, 24: 158-163.
Rangeshwaran, R., Sreeramakumar, P. and Raj. J. 2008. Identification of endophytic bacteria in chickpea and their effect on plant growth. Journal of Biological Control, 22: 13-23
Rangeshwaran, R., Sreeramakumar, P. and Raj. J. 2008. Resistance and susceptibility pattern of chickpea (Cicer arietinum L) endophytic bacteria to antibiotics. Journal of Biological Control, 22: 393-403
Rangeshwaran, R., Wasnikar, A. R., Prasad, R. D., Anjula, N. and Sunanda, C. R. 2002. Isolation of endophytic bacteria for biological control of wilt pathogens.  Journal of Biological Control 16:  125-134.
Rangeshwaran, R., Prasad, R. D. and Anuroop, C. P. 2001. Field evaluation of two bacterial antagonists, Pseudomonas putida (PDBCAB 19) and P. fluorescens (PDBCAB 2) against wilt and root-rot of chickpea. Journal of Biological Control 15:  165-170
Rangeshwaran, R. and Prasad, R. D. 2000. Isolation and screening of rhizobacteria for control of chickpea diseases. Journal of Biological Control 14: 9-15.
Rangeshwaran, R.; Krishnamurthy Rao, W.; Ramaiah, P.K. 1990. Vesicular arbuscular mycorrhiza in coffee. Journal of Coffee Research, 20(1) p. 55-68
Rangeshwaran, R. and Prasad, R. D. 2000. Biological control of Sclerotium rot of sunflower. Indian Phytopathology 53: 444-449.
Ramanujam, B., Prasad, R. D. and Rangeshwaran, R. 2006.  Achievements in biological control of diseases with antagonistic organisms at Project Directorate of Biological Control, Bangalore. In: Current Status of Biological Control of Plant Diseases using Antagonistic Organisms in India, Eds. R. J. Rabindra and B. Ramanujam; Proceedings of the Group Meeting on Antagonistic Organisms in Plant Disease Management held at Project Directorate of Biological Control, Bangalore on 10-11th July 2003, 237pp.