""'Legionella drancourtii " "'is a Gram-negative bacterium from the genus " Legionella " which occurs in nature as a strictly intracellular parasite of free-living amoebae . " L . drancourtii " is named after Michel Drancourt.
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Many eukaryotic microorganisms are heterotrophic by predation or parasitism, properties also found in some bacteria such as " Bdellovibrio " ( an intracellular parasite of other bacteria, causing death of its victims ) and Myxobacteria such as " Myxococcus " ( predators of other bacteria which are killed and lysed by cooperating swarms of many single cells of Myxobacteria ).
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Speculations exist as to whether or not certain " Yersinia " can also be spread by protozoonotic mechanisms, since " Yersinia " species are known to be facultative intracellular parasites; studies and discussions of the possibility of amoeba-vectored ( through the cyst form of the protozoan ) " Yersinia " propagation and proliferation are now in progress.
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But heat and the chemical environment can change the speed at which this happens . ( The virus, btw, can't replicate because it lacks ribosomes and has no way to produce proteins-that ( and not lack of RNA )-is the reason that viruses are obligate intracellular parasites . )-Nunh-huh 20 : 10, 23 May 2008 ( UTC)
