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colony portrait
Anthophysa (ann-though-fie-sa) is a colonial heterotrophic stramenopile (chrysophyte). Ball-shaped aggregates of cells are borne at the ends of brown stalks of an irregularly branching tree-like colony. Phase contrast. This image was taken by Dave Remsen and D. J. Patterson from samples from a rainwater barrel in a garden in Woods Hole (Massachusetts, USA). Image copyright: Dave Remsen and D. J. Patterson, image used under license to MBL (micro*scope).
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Anthophysa
From the collection
Mr Remsens barrel
| Description of Anthophysa: Colourless chrysophyte, club-shaped cells organized into radiating colonies with up to 60 cells; colonies usually attached to a substrate via thick, dichotomously branched stalks, but colonies and cells can easily break free and swim freely in the water; young stalks extruded as a colourless, sticky substance; older stalks usually fairly transparent near the cells, but distally often becoming increasingly thickened and mineralized by deposits of calcium phosphate and compounds of iron and manganese; central part of the stalk occupied by one or more fine protoplasmic strands extending from posterior ends of the cells; individual cells indistinguishable from Spumella; naked, with two unequal flagella, a leucoplast with or without an eyespot, and 1-3 contractile vacuoles near the flagellar bases; cells divide longitudinally beginning at the anterior end, and colonies also divide, leading to bifurcating stalks; nuclear division sometimes not immediately followed by cell division resulting in binucleate cells that may form globular stomatocysts, in which the two nuclei may fuse; sexual reproduction by fusion of whole cells (hologamy) never observed; commonly occurring in freshwater, especially in temporary pools, bogs and small ponds. Type species: Anthophysa vegetans. |
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Anthophysa in this collection |
Anthophysa in other collections
Anthophysa vegetans, from
Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere
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Anthophysa vegetans, from
Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere
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Anthophysa vegetans, from
Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere
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Anthophysa vegetans, from
Protsville
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Anthophysa vegetans, from
Protsville
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Anthophysa, from
Protsville drawings of freshwater protists
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Anthophysa vegetans, from
Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere
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Anthophysa vegetans, from
Kunstforme der Natur by Ernst Haeckel
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Anthophysa, from
Lake Toolik, Arctic Alaska
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Anthophysa, from
Cumloden, Massachusetts, USA
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Anthophysa vegetans, from
Lake Donghu, China
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Anthophysa vegetans, from
Lake Donghu, China
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Anthophysa vegetans, from
Lake Donghu, China
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Anthophysa vegetans, from
Lake Donghu, China
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