Olpidium

Cet article est une ébauche concernant les champignons.

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Olpidium
Description de l'image Defaut 2.svg.
Classification
Règne Fungi
Sous-règne Eomycota
Division Chytridiomycota
Classe Chytridiomycetes
Sous-classe Chytridiomycetidae
Ordre Olpidiales
Famille Olpidiaceae

Genre

Olpidium
(A. Braun) J. Schröt., 1886

Olpidium est un genre de champignons chytrides de la famille des Olpidiaceae.

Ce genre ubiquiste a une vaste gamme d'hôtes. Il comprend des espèces parasites intercellulaires des racines des plantes vasculaires, en général non pathogènes. Cependant certaines espèces sont les vecteurs de nombreux phytovirus appartenant à quatre familles virales, comme le virus des grosses nervures de la laitue (MLBVV, Mirafiori lettuce big vein virus), transmis par Olpidium virulentis[1]. D'autres espèces parasitent des espèces appartenant au phytoplancton, des rotifères, des œufs de nématodes ainsi que d'autres champignons, notamment des champignons phytopathogènes de l'ordre des Pucciniales (rouilles), tels que des espèces du genre Uromyces parasitées par Olpidium uredinis[2], ainsi que des protistes[3].

Synonymes

Selon MycoBank (8 novembre 2014)[4] :

  • Chytridium subgen. Olpidium A. Braun, 1856 ;
  • Cyphidium Magnus, Wiss. Meeresuntersuch. 1875 ;
  • Olpidiella Lagerh., 1888 ;
  • Endolpidium De Wild., 1894 ;
  • Monochytrium Griggs, 1910.

Liste d'espèces

Selon Catalogue of Life (9 novembre 2014)[5] :

Selon Index Fungorum (9 novembre 2014)[6] :

Notes et références

  1. ↑ (fr) « Virus des grosses nervures de la laitue (MLBVV)  », ephytia, INRA (consulté le ).
  2. ↑ (en) Berndt R., « Revision of the rust genus Uromyces on Cucurbitaceae », Mycologia, vol. 105, no 3,‎ , p. 760-780 (DOI 10.3852/12-233).
  3. ↑ (en) Frank Kempken, « Agricultural Applications », dans The Mycota, t. 11, Springer Science & Business Media, , 418 p. (ISBN 9783642368219), p. 263.
  4. ↑ V. Robert, G. Stegehuis and J. Stalpers. 2005. The MycoBank engine and related databases. https://www.mycobank.org/, consulté le 8 novembre 2014
  5. ↑ Catalogue of Life Checklist, consulté le 9 novembre 2014
  6. ↑ Index Fungorum, consulté le 9 novembre 2014

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