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词条 Anabaena
释义
Anabaena
alga
genus of nitrogen-fixing blue-green algae with beadlike or barrel-like cells and interspersed enlarged spores (heterocysts), found as plankton in shallow water and on moist soil. There are both solitary and colonial forms, the latter resembling a closely related genus, Nostoc. In temperate latitudes during the summer months, Anabaena may form water blooms.
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更新时间:2025/2/21 10:04:39