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Croissance et différenciation morphologique comparées à diverses températures de vingt deux souches d'Emmonsia Ciferri et Montemartini, 1959, agent de l'adiaspiromycose

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Abstract

The comparative study of the responses of 22 strains ofEmmonsia to different temperatures between 5° and 40°C allowed us to confirm the existence of thermophilic and non-thermophilic strains. 11 strains composed a very homogeneous non-thermophilic group: their growth, maximal at 20–25°C was almost completely inhibited above 30° and they produced characteristic adiaspores at 35°. The remaining 11 strains composed a thermophilic group: their growth was maximal at 25° except for 57 (30–35°), the growth of U.A.M.H. 139 was inhibited at 35°, the others were inhibited at 40° except for three which still continued to develop slowly. Microscopically they produced more or less degenerate chlamydospores at 40° and few adiaspores.

Resume

L'étude comparative de la réponse de 22 souches d'Emmonsia à différentes températures entre 5° et 40° nous permet de confirmer l'existence de souches non thermophiles et de souches thermophiles. 11 souches constituent un groupe non thermophile très homogène: leur croissance, maximale à 20°–25° est inhibée presque totalement à partir de 30° et elles produisent des adiaspores caractéristiques dès 35°. Les 11 autres souches sont thermophiles. Leur croissance est maximale à 25° sauf pour 57 (30–35°); elle est inhibée à 35° pour U.A.M.H. 139, à 40° pour les autres sauf 3 qui se développent encore légérement. Microscopiquement, elles donnent des chlamydospores plus ou moins dégénérées à 40° et quelques adiaspores petites.

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Authors and Affiliations

  1. Santé dans la Collectivité, Laboratoire de Parasitologie U.E.R., 35 F-Rennes

    M. T. Boisseau-Lebreuil

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  1. M. T. Boisseau-Lebreuil
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Travail effectué grâce à la participation financière de 1' I.N.S.E.R.M. CRL no. 73.1.030.3).

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Boisseau-Lebreuil, M.T. Croissance et différenciation morphologique comparées à diverses températures de vingt deux souches d'Emmonsia Ciferri et Montemartini, 1959, agent de l'adiaspiromycose. Mycopathologia 57, 63–72 (1975). https://doi.org/10.1007/BF01365705

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