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Elemental sulfur responsible for self-inhibition of spores ofPhomopsis viticola

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Résumé

Les spores alpha dePhomopsis viticola, agent de l'excoriose de la vigne, ne germent plus si leur concentration est supérieure à 5×105 spores/ml. Il s'agit d'un phénomène d'auto-inhibition. Des extractions, purifications et analyses du spectre de masse ont, montré que l'auto-inhibiteur était du soufre moléculaire (S8). Les recherches ne permettent pas de savoir si ce soufre libre est présent dans les spores ou dans la gelée sporifère.

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Authors and Affiliations

  1. Station fédérale de recherches agronomiques de Changins, CH-1260, Nyon, (Switzerland)

    R. Pezet & V. Pont

Authors
  1. R. Pezet
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  2. V. Pont
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Additional information

Appreciation is expressed to Prof.G. Turian for his guidance, to the Fonds viticole suisse and the Station fédérale de recherches agronomiques ce Changins for their support, and to Hewlett-Packard (Geneva) for the mass-spectrum analysis

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Pezet, R., Pont, V. Elemental sulfur responsible for self-inhibition of spores ofPhomopsis viticola . Experientia 31, 439–440 (1975). https://doi.org/10.1007/BF02026365

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  • DOI: https://doi.org/10.1007/BF02026365

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