powdery scab

powdery scab
noun
: a disease of potato tubers caused by a fungus (Spongospora subterranea) and characterized by nodular discolored lesions which at maturity burst to expose a powdery mass of spores in circular pits surrounded by the lighter colored frayed remnants of the skin of the tuber — called also pock scab

Useful english dictionary. 2012.

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  • Powdery scab — Taxobox name = Powdery scab regnum = Rhizaria phylum = Cercozoa classis = Phytomyxea genus = Spongospora species = S. subterranea binomial = Spongospora subterranea Powdery scab, is a disease that happens to tubers. It is caused by the protozoa… …   Wikipedia

  • potato scab — noun : any of various diseases of the potato characterized by crusty rough spots or scabs on the tubers; specifically : a disease that is characterized by lesions of brownish corky tissue, is caused by an actinomycete (Streptomyces scabies), and… …   Useful english dictionary

  • pock scab — noun Etymology: pock (I) : powdery scab …   Useful english dictionary

  • Potato — Irish potato redirects here. For the confectionery, see Irish potato candy. For other uses, see Potato (disambiguation). Potato …   Wikipedia

  • Phytomyxea — Taxobox name = Phytomyxea domain = Eukaryota regnum = Rhizaria phylum = Cercozoa classis = Phytomyxea classis authority = Engler and Prantl, 1897 subdivision ranks = Genera subdivision = Lignieria Membranosorus Octomyxa Phagomyxa Plasmodiophora… …   Wikipedia

  • ПАРША КАРТОФЕЛЯ ПОРОШИСТАЯ — англ.corky scab of potato; galls on potato root; powdery scab of potato нем.Geschwülste, Kartoffel; Pulverschorf, Kartoffel; Schwammschorf, Kartoffel франц.gale poudreuse de la pomme de terre; gale spongieuse de la pomme de terre возбудитель …   Фитопатологический словарь-справочник

  • Slime mold — Not to be confused with slime bacteria. Slime mold Stemonitis fusca in Scotland, UK …   Wikipedia

  • Spraing — A disease of potato tubers that causes brown streaks in the flesh of the potato. Spraing can be caused by two viruses, tobacco rattle virus (TRV) which is transmitted by trichodorid nematodes, or potato mop top virus (PMTV) transmitted by the… …   Wikipedia

  • Plasmodiophoromycota — ▪ biology       phylum of plant parasites in the kingdom Chromista commonly referred to as endoparasitic slime molds. Some scientists assign Plasmodiophoromycota to the kingdom Protista. The most important genera are Plasmodiophora and… …   Universalium

  • Spongospora subterranea f. sp. subterranea — Spongospora subterranea f.sp. subterranea …   Wikipédia en Français

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