Dr. B. Ramanujam
Principal Scientist
Division of Germplasm, Conservation and Utilisation
E-mail [email protected]
Fax:080-2341 1961
Phone:080-2351 1982 Extn. 343/9448825106
Qualification M. Sc., Ph. D (Plant Pathology)
Specialization Presently working on Entomofungal pathogens for pest control and fungal antagonistic for disease management
Professional Experience 30 years
Publications 80
Training (International) and (National)
Attended the training cum workshop on “Bioinformatics applications in crop science” at the Unit of Simulation and Informatics, IARI, New Delhi during 21-23rd December, 2009
Attended the training cum workshop on “GPS-GIS-ERADA system” at the at AICRP on Agricultural Ornithology, ANGRU, Hyderabad during 16-22nd February, 2009
Attended the training cum workshop on “IPR and Technology Management ”at CTCRI, Trivandrum, during 30-12-2008 to 1-11-2008
Ph. D guide in Microbiology and Zoology Departments in Mysore University
PG Teacher in Plant Pathology Department at UAS, Bangalore
Life member, Society of Biocontrol Advancement in India, Bangalore, India
Life Member, Indian Society of Plantation Crops
Brief Achievements
Dr. B. Ramanujam is involved in collection, characterization, mass production & formulation and evaluation of entomofungal pathogens for crop pest management at NBAII, Bangalore for the past 11 years. An excellent germplasm collection of 185 isolates of entomofungal pathogens (Beauveria, Metarhizium, Lecanicillum, Paecilomyces, Nomuraea and Ashersonia) from diverse agro-climatic regions of the country was made which can be exploited for non-chemical insect pest management programmes. Data bases of all these isolates with regard to cultural & morphological characters, molecular identification through ITS sequencing, insect cuticle degrading enzyme production capacities, toxin production capacities and virulence on certain lepidopteran and sucking pests have been generated.  Based on the ITS sequence analysis, 31 Indian  isolates of Verticillium lecanii are now placed under four species Lecanicillium viz., L. lecanii, L. attenuatum, L. longisporum and L. muscarium. Studies on cultural characters helped in identifying highly sporulating isolates of B. bassiana,  B. brongniartii, M. anisopliae, Lecanicillum spp., and Paecilomyces spp. Promising isolates against Helicoverpa armigera, Spodoptera litura Plutella xylostella, Chilo partellus, Aphis craccivora, Myzus persicae, Bemisia tabaci were identified based on bioassays, toxin production abilities and  cuticle degrading enzyme production capabilities. ITS sequences of 167 isolates of these fungi were submitted to NCBI GenBank and were published. Oil formulation of promising isolates of B. Bassiana and M. anisopliae were developed using a combination of vegetable oil and mineral oil along with adjuvants for emulsification, stabilization and UV protection for management of sucking pests in vegetables.
Selected Publications
B. Ramanujam, Vinaya Hemannavar, Honnur Basha and R. Rangeshwaran 2012. Post harvest fruit bioassay of phylloplane, pomoplane and endophytic microbes against chilli anthracnose pathogen, Colletotrichum capsici (Syd.) E. J. Butler & Bisby. Journal of Biological control 26 (1): 62-69.
B. Ramanujam, Vinaya Hemannavar, Honnur Basha, P. Chowdappa and R. Rangeswaran, 2012. Standardization of suitable culture medium and formulation of bacterial antagonists to chilli anthracnose pathogen, Colletotrichum capsici. Journal of Mycology and Plant Pathology 42 (1): 141-145.
B. Ramanujam, Honnur Basha, Vinaya Hemannavar, P. Chowdappa and R. Rangeswaran, 2012. Induction of defence related enzymes and phenols in chilli plants by Bacillus subtilis against anthracnose pathogen Colletotrichum capsici. Indian Phytopathology 65 (4) :  (in press).
B. Ramanujam, M. Balachander, G. Roopa, R. Rangeswaran, and Pritam Karmakar. 2011. Chitinase activity and virulence of different isolates of Beauveria bassiana, Metarhizium anisopliae and Lecanicillium spp. Journal of Biological Control, 25 (3): 223–228
B. Ramanujam, M. Balachander, G. Roopa, R. Rangeswaran, and Pritam Karmakar. 2011.  ITS sequencing of Indian isolates of Lecanicillium species. Journal of Biological Control, 25 (4): 337-341.