Many microorganisms including prokaryotes and eukaryotes respond to adverse conditions by forming spores. When the good condition returns once, the spore germinates and the microorganism returns to its normal life cycle. Among the bacterial group, the genus Bacillus is well known for the formation of endospores which means the spores formed inside the mother … Read more
It is a common method of reproduction in lower plants and animals. A single organism is involved in this method i.e. capable of reproduction. The method of reproduction where a single parent is involved and there is no fusion of male and female gamete is asexual reproduction. Sex cells or gametes are not involved. The … Read more
Introduction Some species of bacteria particularly those of Bacillus and Clostridium, develop structures called endospores. ‘Endo’ as prefix means within and endospores are highly differentiated cells which are able to tolerate harsh environment of heat, chemicals and radiations. They are highly resistant resting phase which can survive in a dormant state through a long period … Read more
Nutritional environment regulates the bacterial growth. When a bacterium inoculated in a suitable liquid medium is incubated, its growth leads to an increase in the number of bacterial cells which follows a definite course. When bacterial count of such culture is determined periodically and plotted, a curve is obtained i.e. called growth curve. The growth … Read more