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Étude de la pycnogenèse chezPhomopsis mali (Schultz etSacc.)Rob.

Pyeno genesis inPhomopsis mali

Tvorba pyknidií uPhomopsis mali

  • Published:
Biologia Plantarum

Abstract

Light induces the formation of pycnidia inPhomopsis mali. The induction caused by light can be conserved in darkness. The size and quantity of pycnidia vary with the illuminance. Under low and high illuminances physiologically different pycnidia appear.Phomopsis mali cultivated in darkness in the presence of other microorganisms (fungi or bacteria) can fructify and produces pycnidia similar to those formed under low illuminance and in natural conditions. Our experiments indicate the presence of a pycnogenesis-inducing substance that can exists in different forms and induces the formation of the different pycnidia.

Abstract

Světlo indukovalo tvorbu pyknidií uPhomopsis mali. Tato indukce se udržovala i ve tmě. Podle intensity světla se měnil tvar a množství pyknidií i jejich fyziologické vlastnosti. Při kultivaci ve tmě v přítomnosti jiných mikroorganismů (hub nebo bakterií)Phomopsis mali vytvářela pyknidie podobné jako při nízkém osvětlení. Pokusy prokázaly existenci různých faktorů indukujících tvorbu pyknydií, a to pyknidií různého charakteru.

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Author notes

  1. G. Cornic

    Present address: Laboratoire Ecologie Végétale, Université Paris-Sud, 91405, Orsay, France

Authors and Affiliations

  1. Laboratoire de Phytopathologie, Institut National Agronomique, Alger, Algerie

    I. Emmanouilidis & G. Cornic

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  1. I. Emmanouilidis
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  2. G. Cornic
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Emmanouilidis, I., Cornic, G. Étude de la pycnogenèse chezPhomopsis mali (Schultz etSacc.)Rob. . Biol Plant 16, 50–56 (1974). https://doi.org/10.1007/BF02920820

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  • DOI: https://doi.org/10.1007/BF02920820

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