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Transcript of Chrysophytes
From Greek word phuton
Also known as the golden-brown algae or the golden protists. Chrysophytes are plant-like protists that are chromists (has chloroplasts containing Chlorophyll A and C and other closely related colorless forms) and are mostly unicellular. Chrysophytes Chrysophytes store different carotenoids (pigments) such as fucoxanthin which gives them the yellow-brownish color. They usually store various proportions of the following pigments: chlorophyll (green), carotene (yellow), and xanthopyhll (brown).
Another thing is, Chrysophytes store food as oil not starch. Why So Special? A chrysophyte's cell wall is rigid. Some chrysophytes have pectin in their cell wall, some have cellulose. Some have silica-based cell walls, these usually are in the form of spines or scales. Some species are ameboid and have no cell walls.
There are species without flagella, some have one, and some have two (similar or dissimilar) Cell Structure Chrysophytes live in water generally, mostly fresh-water environments and other marine biomes wherein they are a big part of the food chain, providing food for the planktons. Few have been reported in soil and snow.
Most of the time, they need a good amount of light to survive but some species are an exceptions. Where in the World Being plant-like, chrysophytes require a good amount of light. Though there are exceptions, which are called facultative heterotrophs, which can be heterotrophic when there is an inadequate amount of light. When they are heterotrophic, they eat smaller bacteria or diatoms. Their Menu Chrysophyta is very diverse, having more than one class in its coverage. (Synurophyceae, Chrysophyceae, etc.) Their mode of reproduction is asexual (cell division, etc.) but some reproduce sexually through the process of meiosis. Survival of the Species Chrysophytes are free-swimming, and mostly move through a gliding motion using mucin. They can be filamentous and can also be colonial. Moves Like Mallomonas heterospina
Genus: Mallomonas Mallomonas hindonii
Genus: Mallomonas Sources:
http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter28/animation__how_meiosis_works.html Synura sp.