Rust ( Pers. de-Bary) of Pea ( L.): Present Status and Future Resistance Breeding Opportunities.

- Pers. de-Bary is an important fungal pathogen causing rust in peas ( L.).

Role of melanin in release of extracellular enzymes and selection of aggressive isolates of Bipolaris sorokiniana in barley.

Eighteen barley isolates of Bipolaris sorokiniana belonging to wild and clonal type of black, mixed and white subpopulations were quantitatively assayed for their melanin content and aggressiveness with respect to production of some of the extracellular enzymes such as cellulase, pectinase, amylase and protease. Cellulase and pectinase constituted major portion of the enzymes recovered from the black, mixed and white isolates. Enzyme production and aggressiveness were relatively higher in melanin devoid or low melanin isolates.

Studies on endophytic colonization ability of two upland rice endophytes, Rhizobium sp. and Burkholderia sp., using green fluorescent protein reporter.

Colonization ability of the two endophytic bacteria, isolated from surface sterilized roots of upland cultivated rice viz., Rhizobium sp. and Burkholderia sp.