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出典:『Wikipedia』 (2011/07/16 15:40 UTC 版)

英語による解説

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Dictyostelium are Dictyostelid single celled Eukaryotic, phagotrophic bacterivores usually present and often abundant in terrestrial ecosystems and are a normal component of the microflora in cells that help in soil balance between bacteria and soils. The amoeba are often grouped as slime mold . The Order is the Dictyosteliida. (dictyostelid cellular slime molds or social amoebae). Dictyosteliida contains organisms that hover on the borderline between uni- and multicellularity. The protists are often found on organic matter or in soils and caves. Typically, cells grow separately and independently but interact to form multi-cellular structures when challenged by adverse conditions such as starvation. Some have argued this is a form of intelligence. Up to 100,000 cells signal each other by releasing the chemoattractant cAMP and aggregate together by chemotaxis to form a mound that is surrounded by an extracellular matrix. Basic processes of development such as differential cell sorting, pattern formation, stimulus-induced gene expression, and cell-type regulation are common to Dictyostelium and metazoans.