File:Hyaloperonospora-parasitica-hyphae-haustoria.jpg

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English: Hyphea of Hyaloperonospora parasitica (downy mildew) growing within the leaf of a compatible (susceptible) Arabidopsis thaliana (cf.wikipedia) observed by bright-field microscopy. The staining with trypan blue makes the cytoplasm of H. parasitica dark blue. The long structure is the hyphea, whereas the little sphere are haustoria. This is the vegetative step of the short life cycle of H. parasitica.
Français : Hyphes de Hyaloperonospora parasitica (Mildiou) dans une feuille d'Arabidopsis thaliana (cf.wikipedia) susceptible (compatible) observée au microscope optique. La coloration au bleu de trypan donne une couleur bleue foncée au cytoplasme de H. parasitica. La longue structure est l'hyphe, tandis que les petites sphères sont les haustoria. C'est l'étape végétative du cycle court de H. parasitica.
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Hyaloperonospora arabidopsidis

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current06:14, 16 November 2006Thumbnail for version as of 06:14, 16 November 2006813 × 445 (268 KB)Emmanuel.boutet{{Information |Description= Hyphea of ''Hyaloperonospora parasitica'' growing on susceptible ''Arabidopsis thaliana''. (staining is Trypan Blue) |Source= own work |Date= 2002 |Author= Emmanuel Boutet |Permission= Creative
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