Asexual Reproduction: Spore Forming Bacteria Essays
The spore formation is kind of asexual reproduction which happens when the environmental conditions around the Bactria become not suitable for it and for protection too.
Spores all the time haploid and unicellular and are generated by meiosis in the sporangium of a diploid sporophyte. Under convenient conditions the spore can use mitotic division to promote into a new organism, which produce a multicellular gametophyte, which eventually goes on to produce gametes. Zygote been formed from Two gametes, which develops into a new sporophyte. This cycle is known as alternation of generations.
Type of bacterial spores
Endospores, are powerful against harsh chemical and physical …show more content…
Endospores are resistant to most agents that would normally kill the vegetative cells they formed from. Unlike persister cells, endospores are the result of a focused morphological differentiation process specifically tied to nutrient limitation (starvation) in the environment and is initiated by quorum sensing within the "starving" population. Nearly all household cleaning products, alcohols, quaternary ammonium compounds and detergents have little effect. However, alkylating agents (e.g. ethylene oxide), and 10% bleach are effective against endospores. To kill anthrax spores, standard household bleach (with 5% sodium hypochlorite) diluted freshly 1:10 in water (100ml of bleach in 900ml of water) must be in contact with the spore for at least 5 minutes. This contact time is important as a very small fraction of spores can survive longer than 10 minutes while soaked in this bleach solution. Higher concentrations of bleach are not more effective, and can cause some types of bacteria to aggregate and thus survive.
Spore forming bacteria