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  • 1975-1979  (2)
  • 1930-1934
  • Betaine  (1)
  • Coordinate Estimation  (1)
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  • 1975-1979  (2)
  • 1930-1934
Year
  • 1
    ISSN: 1432-2048
    Keywords: Betaine ; Lophytes ; Salt tolerance ; Suaeda
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An attempt has been made to localize glycinebetaine in shoots of Suaeda maritima L. Dum. using a technique based on the formation of an iodoplatinate precipitate. Deposits were largely restricted to the cytoplasm of salt-grown plants and were analysed by transmission analytical electron microscopy. The results are considered to support the hypothesis that glycinebetaine acts as a cytoplasmic osmoticum to balance high vacuolar salt levels in certain halophytes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Plant ecology 32 (1976), S. 83-86 
    ISSN: 1573-5052
    Keywords: Classification ; Coordinate Estimation ; Ordination ; Tropical Forest
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Le problème d'insérer des relevés nouveaux dans une classification préexistante est esquissé. Une solution est de soumettre les relevés de la région étudiée à une analyse factorielle des correspondances, obtenant ainsi une ordination divisible en types de végétation. Un relevé nouveau peut se poser sur les axes de l'ordination, et dans le type correct, si la valeur moyenne d'ordination est calculée pour une liste brève des espèces constituantes.
    Notes: Summary The problems of allocating new vegetation stands to an existing classification are outlined. As one solution, the vegetation samples from an area may be ordinated by reciprocal averaging and classified by dividing the ordination into community-types. The ordination scores for a short list of species present in a new sample may then be averaged to locate that sample on the ordination axes and in one of the community-types. The method is tested by comparing estimates from incomplete species lists with that from a complete list of species in an forest stand in southern Ghana.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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