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Microbial Diversity
Green Algae: Forms, Habitats, and Roles
Description
Green algae are photosynthetic organisms with chlorophylls a and b in their chloroplasts. These pigments give them a green color. They differ from red algae because they lack phycobiliproteins, the pigments that produce red or blue-green tones in red algae. In pigment makeup, green algae are close to plants, and they share a...
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Transcript
绿藻属于古质体界中的绿藻门。
它们的绿色是由于含有叶绿素a和b的叶绿体所致。
它们栖息于潮湿的土壤、淡水和海洋环境中,或作为共生体存在于地衣中。
一些 Trebouxia 南极洲的物种是内生光养生物,能够在含石英的多孔岩石中生存。
绿藻在形态上具有多样性。它们被分为两大主要类群——绿藻门,例如微小的Chlamydomonas;以及轮藻门,是陆生植物最亲近的近缘类群,例如宏观的Chara。
其他显著的例子包括单细胞的Ostreococcus、单细胞多叶状的Micrasterias、具鞭毛的Dunaliella以及丝状的Spirogyra。
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