Information AboutChlorarachniophyte |
| CATEGORIES ABOUT CHLORARACHNIOPHYTE | |
| cercozoa | |
Chlorarachniophytes are a small group of Alga e occasionally found in tropical oceans. They are typically mixotrophic, ingesting Bacteria and smaller Protist s as well as conducting Photosynthesis . Normally they have the form of small Amoeba e, with branching cytoplasmic extensions that capture prey and connect the cells together, forming a net. They may also form Flagellate zoospores, which characteristically have a single subapical flagellum that spirals backwards around the cell body, and walled coccoid cells. The Chloroplast s were presumably acquired by ingesting some Green Alga . They are surrounded by four membranes, the outermost of which is continuous with the Endoplasmic Reticulum , and contain a small Nucleomorph between the middle two, which is a remnant of the alga's nucleus. This contains a small amount of DNA and divides without forming a Mitotic spindle. The origin of the chloroplasts from green algae is supported by their pigmentation, which includes Chlorophyll s ''a'' and ''b'', and by genetic similarities. The only other group of algae that contain nucleomorphs are the Cryptomonad s, but their chloroplasts seem to be derived from a Red Alga . The chlorarachniophytes only include five genera, which show some variation in their life-cycles and may lack one or two of the stages described above. Genetic studies place them among the Cercozoa , a diverse group of amoeboid and amoeboid-like protozoa. |
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