25 research outputs found
L-asparaginase activity in antagonistic streptomycetes associated with clam Villorita cyprinoides (Hanley)
204-208Antagonistic property of Streptomyces sp. isolated from Villorita cyprinoides was studied along with L-Asparaginase activity and growth. Streptomyces sp. showed optimum pH requirement at 7. The influence of amino acids, carbon sources and sodium chloride showed wide variations. Heavy metal inhibited the growth and activity
Seasonal variations of bacteria in fish Etroplus suratensis and Etroplus maculatus (Pisces: Cichlidae)
225-228Seasonal variations of bacteria in gills, alimentary canal and reproductive organs of B. suratensis and E. maculatus were studied. Maximum bacterial population was recorded during premonsoon (Jan.-April) and minimum during post monsoon (Sept.-Dec.) seasons. Micrococcus spp were predominant in gills, alimentary canal and reproductive organs of both fish. Selected bacterial cultures were characterized for their physiological activities. Bacterial load in the alimentary canal of both the fish exhibited positive correlation with weight of that organ