Bacteria are found everywhere in air, soil, water. They are most adaptative organisms which can grow in very cold climate like arctic region, hot spring, desert, on and inside organisms body.This note contains information about its occurrence, types and gram positive and gram negative bacteria.
Nutrition in Bacteria
Most of the bacteria do not contain chlorophyll. They are unable to synthesis their own food but a small group of bacteria are capable of synthesizing their own food. So, nutrition in bacteria is both autotrophic and heterotrophic. This note contains information about types of nutrition in bacteria.
Terrestrial species of Nostoc can be found in damp soil. Few species of Nostoc are also found in the rice field in which they increase the soil fertility by fixing atmospheric free nitrogen. This note contains information about occurrence, structure, cell structure of Nostoc.