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  • Articles: DFG German National Licenses  (3)
  • 1975-1979  (1)
  • 1955-1959  (2)
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  • Articles: DFG German National Licenses  (3)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Mycopathologia 55 (1975), S. 159-162 
    ISSN: 1573-0832
    Keywords: Alternaria tenuis ; phytotoxin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Tentoxin, produced by Alternaria alternata (Fr.) Keissl. causes severe variegated chlorosis in germinating seedlings of certain dicotyledonous species. However, it does not impair radicle and hypocotyl elongation or cotyledon expansion. Effects of the toxin on the activity of selected enzymes from both chloroplasts and cytoplasm were determined. Cucumber (Cucumis sativus L.), which is highly sensitive to tentoxin and cabbage (Brassica oleracea L.), which is resistant, were used as test plants. The activities of chloroplastic, but not cytoplasmic, enzymes were decreased by treatment of cucumber cotyledons with tentoxin. Neither group of enzymes was affected by the toxin in cabbage cotyledons. The decreased enzymic activities are probably related to reported inhibition of photophosphorylation by tentoxin.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of plant pathology 64 (1958), S. 263-268 
    ISSN: 1573-8469
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Samenvatting In 1957 bezocht de schrijver erwtevelden in Nederland, Zwitserland, West-Duitsland, Engeland en Zweden en noteerde de mate, waarin de desbetreffende gewassen door een aantal ziekten waren aangetast. In de waarnemingen waren de volgende ziekten betrokken: bacterieziekte, vlekkenziekte, Amerikaanse vaatziekte, Fusarium wortelrot, valse meeldauw, „enation”-mozaïek, mozaïek, strepenziekte („streak”), dwergziekte („stunt”), topvergeling, aaltjes en waterophoping in de intercellulairen („water congestion”). De mate van aantasting werd geschat en als volgt uitgedrukt: spoor, minder dan 1% van de planten ziek; licht, 1–4% aantasting; matig, 5–10% aantasting; sterk, 11–25% aantasting; zeer sterk, meer dan 25% aangetast. Tabel 1 geeft een overzicht van deze waarnemingen. Enige ziekten werden in sommige landen voor de eerste keer gevonden. Het betreft in Nederland de dwergziekte, waarvan het virus ook in klaver werd aangetroffen; in Zwitserland „enation”-mozaïek, mozaïek, strepenziekte, dwergziekte, topvergeling en waterophoping in de intercellulairen; in Engeland dwergziekte en topvergeling; in Zweden „enation”-mozaïek, mozaïek, strepenziekte, dwergziekte en ophoping van water in de intercellulairen.
    Notes: Summary Observations on the occurrence of diseases of pea,Pisum sativum, in five European countries in 1957 are reported. Areas visited, numbers of fields studied, and appropriate dates are indicated. The pea diseases found, together with estimates of the amount of infection by each are given. No accuracy of relative economic importance of the diseases is claimed but significance is attached to the finding of certain pea diseases for the first time in several of the countries visited.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of plant pathology 65 (1959), S. 13-23 
    ISSN: 1573-8469
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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