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Citation for Study 1494

About Citation title: "Queirozia turbinata (Phyllactinieae - Erysiphaceae): a powdery mildew with a dematiaceous anamorph".
About This study was previously identified under the legacy study ID S1438 (Status: Published).

Citation

Liberto J., Barreto R., Niinomi S., & Takamatsu S. 2006. Queirozia turbinata (Phyllactinieae - Erysiphaceae): a powdery mildew with a dematiaceous anamorph. Mycological Research, 110.

Authors

  • Liberto J.
  • Barreto R.
  • Niinomi S.
  • Takamatsu S.

Abstract

The powdery mildew monotypic genus Queirozia was reduced to a synonym of Pleochaeta in 1982. Now, a re-examination of the type material of Queirozia and of other two specimens showed that Queirozia turbinata has a very distinct combination of characters which do not allow its placement within Pleochaeta. It has forked special aerial hyphae, subclavate and predominantly lemon-shaped conidia,and both conidiophores and conidia varying from grayish to yellowish-brown (a feature that appears to be unique for this fungus within the Erysiphales). This may represent the first dematiaceous anamorphic powdery midew known to science. This fungus also has hemiendophytic mycelium, a character considered almost exclusive to the tribe Phyllactinieae. The outer wall surface pattern of wrinkled and turgid conidia of Q. turbinata as observed under the SEM is different from those presented in the literature for this tribe. Molecular analysis showed that Q. turbinata belongs to the tribe Phyllactinieae and is phylogenetic closer to Pleochaeta than to Leveillula or Phyllactinia. It is therefore acknowledged that Queirozia is closely related to Pleocheta but too distinct morphologically from this genus to be accepted as a synonym. Emended descriptions of Queirozia and Q. turbinata are presented.

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  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S1494
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