RELATIVE ABUNDANCE OF PIGMENTED BACTERIA IN INDIAN ‘USAR’ (ALKALINE) SOILS-A POSSIBLE INDICATION OF ECOLOGICAL SPECIALIZATION

Abstract

Studies on the distribution of pigmented bacteria in ‘Usar’ (alkaline) soils indicated that their number is directly proportional to salinity, the light playing no obvious role. The results also suggest that the bacteria found in these soils are temperature sensitive and do not show any temperature-salinity relationship.