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  • Articles  (3)
  • Male
  • Springer  (3)
  • 1980-1984  (1)
  • 1975-1979  (2)
  • 1955-1959
  • 1925-1929
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  • Articles  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Sterols of male and female flowers of Cucumis sativus (1977)
    Springer
    Planta 134 (1977), S. 115-117 
    Details
    ISSN: 1432-2048
    Keywords: Female ; Flowers ; Male ; Meiosis ; Sterols
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Sterols of male and female flowers of Cucumis sativus L. were similar in composition. The principal compound was 24ξ-ethyl-5α-cholesta-7,22-dien-3β-ol. Five other 5α-Δ7 were detected: 24ξ-methyl-7-ene, 24ξ-ethyl-7-ene, 24-ethyl-7,24(28)Z-diene, 24ξ-ethyl-7,25-diene and 24ξ-ethyl-7,22,25-triene. Small amounts of Δ5 (cholesterol, 24ξ-methylcholesterol and 24ξ-ethylcholesterol) were detected. The possible significance of these sterols is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00384959
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Sterols of male and female compound inflorescences of Zea mays L. (1976)
    Springer
    Planta 133 (1976), S. 89-93 
    Details
    ISSN: 1432-2048
    Keywords: Zea mays ; Inflorescences ; Male ; Female ; Sterols
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A comparison has been made between the sterols of male and female inflorescences and of pollen from Zea mays. The female inflorescence was shown to contain cholesterol, 24-methylcholesterol, 24-ethyl-5,22-cholestadien-3β-ol, 24-ethylcholesterol and (28Z)-24-ethylidenecholesterol. Themale inflorescence contained the same five compounds together with 24-methylenecholesterol. Pollen contained 24-methylenecholesterol as its main sterol together with lesser amounts of cholesterol, 24-ethylcholesterol, (28Z)-24-ethylidenecholesterol, 24-methylene-5α-cholest-7-en-3β-ol and 4α-methyl-24-methylene-5α-cholest-7-en-3β-ol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00386011
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  • 3
    Electronic Resource
    Electronic Resource
    Characterization of anther differentiation in cytoplasmic male sterile maize using a specific isozyme system (esterase) (1984)
    Springer
    Theoretical and applied genetics 67 (1984), S. 469-473 
    Details
    ISSN: 1432-2242
    Keywords: Maize ; Pollen anther ; Esterase ; Male ; sterility ; Restorer genes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary During anther development, characterized in maize plants with N cytoplasm, certain esterase isozymes in non-microspore cells decrease in amount with anther age and new isozymes appear in the developing microspores. In anthers from male sterile plants with cms T or cms C cytoplasm, neither of these changes in esterase patterns occurred. In anthers from plants with cms S cytoplasm, the decrease in the esterases of non-microsporogenous cells was observed but not the appearance of microspore esterases. In lines carrying cms S cytoplasm and nuclear restorer genes, esterase changes during anther development were as in normal fertile anthers. These results are discussed with respect to the phenomenon of cytoplasmic male sterility in the different maize genotypes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00263415
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    Paper (German National Licenses)
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