title: A new species of Pythium isolated from a vineyard in France.
abstract: Pythium apiculatum sp. nov. is a new oomycete characterized by the presence of both ornamented and smooth-walled oogonia. The ornamentations are blunt, and at times, bent. The oomycete was isolated from soil samples taken in a vineyard in the Burgundian region of France. Morphologically, it resembles some species having ornamented oogonia like Pythium radiosum, Pythium echinulatum, and resembles, also the species having smooth-walled oogonia like Pythium hypogynum and Pythium acrogynum. However, the oomycete has its own distinguishing characteristics which, when combined with molecular features, enables us to describe it as a new species. The taxonomic description of this new oomycete, its comparison with related species, and the sequence of the ITS region of its rRNA gene, are described in this article.
authors.affiliation: Laboratoire des Sciences de la Vigne, Institut Jules Guyot, Université de Bourgogne, Dijon, France.
authors.forename: Bernard
authors.initials: B
authors.lastname: Paul
mesh_terms: D001483:Base Sequence; D004275:DNA, Ribosomal / Q000032:analysis; D021903:DNA, Ribosomal Spacer / Q000032:analysis*; D005602:France; D008969:Molecular Sequence Data; D011775:Pythium / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D012335:RNA, Ribosomal / Q000235:genetics*; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology
chemical_list: D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D012335:RNA, Ribosomal