micro*scope - version 6.0

Dinobryon (dine-oh-bry-on) a mixotrophic stramenopile (chrysophyte) with one long flagellum and one short flagellum. When feeding heterotrophically, the beating of the long flagellum draws food towards the cell where it may be ingested. The cell also has brownish chloroplasts. It forms a flimsy tubular lorica which is emphasised in this image. Phase contrast microscopy. This image was taken by Dawn Moran and David Patterson from cultures and samples collected from the Ross Sea in Antarctica by Rebecca Gast. Image copyright: Dawn Moran and D. J. Patterson, image used under license to MBL (micro*scope).

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Dinobryon

From the collection Ross Sea, Antarctica

Description of Dinobryon: Chrysophytes, loricate, forming arbusculate colonies (rarely solitary), planktonic and free-swimming (rarely sessile); lorica cylindrical, vase- or funnel-shaped and often with a slightly broadened mouth; lorica consisting primarily or entirely of cellulose and protein, formed by successive loops of fibrils extruded during rotation of the cell; cells Ochromonas-like, attached to base of lorica by a thin protoplasmic strand; 2 unequal flagella; chloroplast(s) 1 (bilobed) or 2; eyespot large, associated with base of short flagellum; 1-2 contractile vacuoles, anterior, median or posterior; chrysolaminaran vacuole large, posterior; nutrition phototrophic and phagotrophic; reproduction by longitudinal cell division, after which one daughter cell swims away or often moves to mouth of parental lorica and forms a new lorica, whereas the other daughter cell occupies the parental lorica; stomatocysts formed asexually or sexually; several species wide-spread and very common in freshwater lakes and ponds; blooms sometimes causing odor problems; some species also occurring in estuaries and coastal marine waters including Antarctica.

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Dinobryon in this collection

Dinobryon
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Dinobryon in other collections

Dinobryon petiolatum, from Heterotrophic flagellates of marine habitats	Dinobryon petiolatum, from Heterotrophic flagellates of marine habitats	Dinobryon bavaricum, from Protozoan biomonitors in China	Dinobryon cyclindricum, from Protozoan biomonitors in China	Dinobryon divergens, from Protozoan biomonitors in China
Dinobryon sertularia, from Protozoan biomonitors in China	Dinobryon sociale, from Protozoan biomonitors in China	Dinobryon, from Protsville drawings of freshwater protists	Dinobryon divergens, from Limnic and marine Protists of Northern Germany and the Alps	Dinobryon divergens, from Limnic and marine Protists of Northern Germany and the Alps
Dinobryon divergens, from Limnic and marine Protists of Northern Germany and the Alps	Dinobryon, from Lake Toolik, Arctic Alaska	Dinobryon sertularia, from Provasoli-Guillard National Center for Culture of Marine Phytoplankton (CCMP)	Dinobryon sertularia, from Kunstforme der Natur by Ernst Haeckel	Dinobryon, from Lake Toolik, Arctic Alaska
Dinobryon sertularia, from Provasoli-Guillard National Center for Culture of Marine Phytoplankton (CCMP)	Dinobryon sertularia, from Provasoli-Guillard National Center for Culture of Marine Phytoplankton (CCMP)	Dinobryon, from Lake Toolik, Arctic Alaska	Dinobryon sertularia, from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere	Dinobryon, from Cumloden, Massachusetts, USA

micro*scope - version 6.0 - March, 2006
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