Emeritus Scientist, Division of Microbiology, Indian Agricultural Research Institute, New Delhi 110 012, India
*Corresponding author; E-mail: ydg_mbio@iari.res.in
#Source: Bacterial Plant Symbiosis. Indian J Exp Biol, Specal Issue, October 2003, NISCAIR & INSA New Delhi, pp 1089-1212.
