The Effects Of Cannibalism

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Introduction
• In natural environment ,where many organism exist, competition arise to survive and use resources, bacteria start it own fight using chemical weapon to kill other microorganism or just inhibit it growth (Cannibalism: asocial behaviorin sporulating) (Cannibalism and fratricide)( Production of the Cannibalism Toxin SDP),the effect of theses chemical start with it wide effect as an antimicrobial substances on unrelated bacterial species, to a very specific bacteriocin, peptides that effect closely related strain , without forgotten to improve the producer immunity against its own toxins in the whole population members,( Cannibalism:asocial behaviorinsporulating(Cannibalism and fratricide),a new relationship within population of same species including the production of a sister killing toxins which we will talk about it in our review as mechanisms known as Cannibalism, a mechanisms discovered in gram positive Bacillus subtilis species act to kill identical or semi-identical sister cell, siblings, within population in a heterogeneous population where a group of bacteria cells ,cannibal cells, express some genes skf and sdp toxin , while other group not, the later sibling group will be killed by these toxins because it doesn’t have immunity against it and use it released nutrient to feed other cells (Cannibalism by sporulating bacteria. Science) (Cannibalism and fratricide: mechanisms, (Cannibalism enhances biofilm development) )( Production of the Cannibalism Toxin SDP)( Sporulating bacteria prefers predation)

A study of cannibalism that observed in Bacillus subtilis as these bacteria suffering from low nutrient concentration and start to form endospores , (Cannibalism and fratricide: mechanisms) . in this way ba...

... middle of paper ...

...nt progress in Bacillus subtilis sporulation. FEMS Microbiol Rev. 2012 ; 36(1): 131–148.

• Subir Kumar Nandy SK, Bapat PM, Venkatesh KV. Sporulating bacteria prefers predation to cannibalism in mixed cultures .FEBS Letters .2007.581 :151–156
• Lamsa A, Liu WT, Dorrestein PC, Pogliano K. The Bacillus subtilis cannibalism toxin SDP collapses the proton motive force and induces autolysis. Molecular Microbiology. 2012. 84(3): 486–500
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• Nandy SK, Prasad V, Venkatesh KV. Effect of Temperature on the Cannibalistic Behavior of Bacillus subtilis.APPL. ENVIRON. MICROBIOL. 2008 ,74( 23) : 7427–7430

• Gonz´alez-Pastor JE, Hobbs EC & Losick R (2003) Cannibalism by sporulating bacteria. Science 301: 510–513.
• Ellermeier CD, Hobbs EC, Gonz´alez-Pastor JE & Losick R (2006)
A three-protein signalling pathway governing immunity to abacterial cannibalism toxin. Cell 124: 549–559.

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