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2007-04-02 12:50:41 · 2 answers · asked by Anonymous in Science & Mathematics Biology

2 answers

Apicomplexan parasites such as Plasmodium and Toxoplasma display actomyosin-dependent motility in the absence of readily detectable actin polymers. Three recent studies indicate that parasite actin polymers, either harvested from parasites or formed from purified recombinant proteins, are exceptionally short ( approximately 100 nm). We propose that parasite motility could be directed by the transient formation of short actin filament scaffolds. Parasite actin polymers that support transmembrane receptors are pulled, by myosin interaction, backwards along the parasite periphery, resulting in forward movement

2007-04-03 04:00:02 · answer #1 · answered by robinvanaugusta 4 · 0 0

A slime mold plasmodium creeps across a surface rather like an amoeba, digesting organic matter with secreted enzymes and absorbing the nutrients.

Plasmodium that is the parasite that causes malaria is a parasite that is transported by mosquitoes and by the bloodstream of its host. As a parasite, it takes nutrition from the organism it is in.

2007-04-02 13:01:42 · answer #2 · answered by ecolink 7 · 0 0

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