Mastigonemes are Anatomical terms of location lateral hairs found covering the flagellum flagella of heterokont and Cryptomonad cryptophyte algae ref name hoek95 Hoek, C. van den, Mann, D. G. and Jahns, H. M. 1995 . http books.google.co.uk books?id xuUoiFesSHMC&printsec frontcover Algae An introduction to phycology , Cambridge University Press, UK. ref . They are approximately 15 nanometre nm in diameter, and usually consist of a tubular shaft that itself terminates in smaller hairs . It is believed that they assist in animal locomotion locomotion by increasing the surface area of a flagellum. References references cell biology stub Category Algae Category Heterokonts Category Cryptophytes Category Flagellates ... more details
or mastigonemes , while the other flagellum is whiplash, smooth and usually shorter, or sometimes reduced ... by four microtubule roots in a distinctive pattern. Mastigonemes are manufactured from glycoprotein .... The mastigonemes have a peculiar tripartite structure, which may be taken as the defining characteristic ... named this extended group the stramenopiles, characterized by the presence of tripartite mastigonemes ... more details
Taxobox name Raphidophytes image Gonyostomum cells.JPG image caption Gonyostomum semen domain Eukaryote Eukaryota regnum Chromalveolata phylum Heterokont ophyta classis Raphidophyceae classis authority Chadefaud, 1950 Raphidophytes formerly referred to as Chloromonadophyceae and Chloromonadineae ref jstor 3224637 are a small group of eukaryote eukaryotic alga e that includes both marine ocean marine and fresh water freshwater species . ref name hoek95 Hoek, C. van den, Mann, D. G. and Jahns, H. M. 1995 . http books.google.co.uk books?id xuUoiFesSHMC&printsec frontcover Algae An introduction to phycology , Cambridge University Press, UK. ref All raphidophytes are unicellular , with large cells 50 100 Micrometre m but no cell walls . Raphidophytes possess a pair of flagellum flagella , organised such that both originate from the same invagination or gullet . One flagellum points forwards, while the other, covered in hair like mastigonemes , points backwards across the cell surface, lying within a Anatomical terms of location ventral groove. Raphidophytes contain numerous ellipse ellipsoid chloroplast s, which contain chlorophyll s a, c sub 1 sub and c sub 2 sub . They also make use of accessory pigment s including carotene carotene and Xanthophyll Xanthophyll cycle diadinoxanthin . Unlike other heterokontophytes, raphidophytes do not possess the Eyespot apparatus photoreceptive organelle or eyespot typical of this group. In terms of ecology , raphidophytes occur as photosynthesis photosynthetic autotroph s across a range of Aquatic ecosystem aquatic systems. Freshwater species are more common in acid ic waters, such as pools in bog s. Marine species often produce large algal bloom blooms in summer, particularly in coast coastal waters . Off the Japan ese coast, the resulting red tide s often cause disruption to fish farming fish farms , although raphidophytes are not usually responsible for toxicity toxic blooms. See also Chattonella Fibrocapsa Gonyostomum Haramona ... more details
distinguish flagellation Image Flagellata 1.png thumb left Flagellata from Encyclop dia Britannica Image Haeckel Flagellata.jpg thumb Flagellata from Ernst Haeckel s Kunstformen der Natur Artforms of Nature , 1904 Image Giardia lamblia.jpg thumb Parasitic excavate Giardia lamblia Image Chlamydomonas 10000x .jpg thumb Green alga Chlamydomonas Flagellates are organisms with one or more whip like organelles called flagellum flagella . Some cells in animal s may be flagellate, for instance the spermatozoa of most phylum phyla . Flowering plant s do not produce flagellate cells, but fern s, moss es, green algae , some gymnosperms and other closely related plants do. Likewise, most fungus fungi do not produce cells with flagellae, but the primitive fungal chytrid s do. Many protist s take the form of single celled flagellates. The word flagellate describe a particular construction of eukaryotic organism and its means of motion. The term does not imply any specific relationship or classification of the organisms that possess flagellae. However, the term flagellate is included in other terms such as dinoflagellate and zooflagellate which often are more formally characterized. ref name pmid8868448 cite journal author Cavalier Smith T title Zooflagellate phylogeny and classification journal Tsitologiia volume 37 issue 11 pages 1010 29 year 1995 pmid 8868448 doi url ref Form and behavior Eukaryotic flagella are supported by microtubule s in a characteristic arrangement, with nine fused pairs surrounding two central singlets. These arise from a basal body or kinetosome, with microtubule roots that are an important part of the cell s brain. In some, for instance, they support a cytostome or mouth, where food is ingested. The flagella often supports hairs, called mastigonemes, or contain rods. Their ultrastructure plays an important role in classifying eukaryote s. In protoctists and microscopic animals, flagella are generally used for propulsion. They may also be used to create ... more details
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