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  • 1
    Electronic Resource
    Electronic Resource
    Photoreactive Pigments in Flagellates: Chromoprotein Pigments of Some Cryptomonad Flagellates (1959)
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 1047-1049 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE cryptomonad flagellates are a little-known group of organisms comprising both pigmented and apochlorotic forms. The pigmented forms are usually blue-green, brown, purple or red in colour and are capable of photosynthesis. Until very recently, nothing was known of the pigments responsible for ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1841047a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Ultra-violet induced mutants of Chlorella pyrenoidosa (1962)
    Springer
    Archives of microbiology 41 (1962), S. 115-141 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00409499
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Studies with cyanidium caldarium, an anomalously pigmented chlorophyte (1959)
    Springer
    Archives of microbiology 32 (1959), S. 270-277 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Cyanidium caldarium, an alga found in acid hot springs troughout the world, has a morphology and developmental history resembling those of Chlorella, but contains C-phycocyanin and no chlorophyll other than chlorophyll a. The reasons for considering it to be a member of the Chlorophyta are reviewed. Cyanidium is also remarkable for its thermal and acid tolerance. It grows readily in the dark on sugar media. However, light is required for the formation of chlorophyll and phycocyanin except in occasional variant cells which can form limited amounts of these pigments in the dark. Light-grown Cyanidium carries out normal green plant photosynthesis but resembles the red and some of the blue-green algae in that chlorophyll-absorbed light is used with lower efficiency than that absorbed by phycocyanin. The possible significance of the unusual pigmentation of Cyanidium is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00409348
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  • 4
    Electronic Resource
    Electronic Resource
    Excretion of organic compounds by Chlamydomonas (1956)
    Springer
    Archives of microbiology 24 (1956), S. 163-168 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Six species of Chlamydomonas have been shown to accumulate soluble photosynthetic products in the culture medium during growth. Formation of soluble organic material parallels the growth of the algae, and is favored by high light intensity and nitrate as nitrogen source. The groducts formed include polysaccharide and organic acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00408630
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  • 5
    Electronic Resource
    Electronic Resource
    The words ‘protist’ and ‘protista’ (1958)
    Springer
    Cellular and molecular life sciences 14 (1958), S. 78-78 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Les auteurs estiment que l'on devrait employer les mots «Protiste» et «Protista» à peu près dans le sens originel deHaeckel (1866) — c'est-à-dire pour l'ensemble Bactéries, Algues, Champignons, et Protozoaires — et ne pas en exclure ni les Bactéries ni les Algues bleuesvertes comme l'a faitCopeland en 1938. Dans ces conditions, l'on peut distinguer trois catégories de Protistes: lesMonères, ouProtistes inférieurs (Bactéries et Algues bleues-vertes), lesMésoprotistes, ouProtistes intermédiaires (Algues rouges), et lesMétaprotistes, ouProtistes supérieurs (la plupart des Algues, les Champignons, et les Protozoaires).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02159018
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  • 6
    Electronic Resource
    Electronic Resource
    Spedtral properties of a pigmented body in Hymenomonas sp.: An extra-chloroplast organelle containing chlorophyll (1967)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 70 (1967), S. 133-140 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: In the chrysomonad Hymenomonas, a lamellar organelle of undefined function described previously in electron micrographs, is shown to be highly pigmented by absorption and fluorescence light microscopy. Absorption spectra of the lamellar organelle and the chloroplasts of Hymenomonas are presented. In comparison with the chloroplast the lamellar body appears to have an equal concentration of chlorophyll α and nearly three times the concentration of the 490 nm absorbing carotenoid. Fluorescence in the organelle is initially red as in the chloroplast; this is quickly replaced by an intense yellow emission. The rate at which the red fluorescence is replaced by the yellow is oxidation dependent and is quite rapid in the high intensity of the exciting light required for fluorescence micrographs. Possible roles of the organelle in cell metabolism or photochemistry which are considered and evaluated include: photosynthetic organelle, coccolithogenic organelle, symbiont and lysosome.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040700202
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    Paper (German National Licenses)
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