期刊
FUNGAL BIOLOGY
卷 114, 期 10, 页码 881-899出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funbio.2010.08.005
关键词
Basidiomycota; Phylogenetic analysis; Pucciniales; Yellow rust
类别
资金
- Canadian Chemical, Biological, Radiological-Nuclear, and Explosives (CBRNE) Research and Technology Initiative (CRTI) [CRTI-040045RD]
Phylogenetic analyses of ITS and beta-tubulin DNA sequences for 30 Puccinia striiformis specimens from wide geographic and host ranges revealed four strongly supported monophyletic lineages. Based on comparisons of morphological characteristics, and after consideration of previous classifications, the lineages were recognized as P. striiformis sensu strict, Puccinia pseudostriiformis, Puccinia striiformoides and one new species, Puccinia gansensis. A new series (Puccinia Series Striiformis) was erected to accommodate this strongly supported monophyletic group of four species within Puccinia. Expanded descriptions, illustrations and a tabular identification key are provided. The morphological differences among species are subtle but host association and combinations of other characters can be used successfully for identification. Puccinia striiformis s.str. has the widest host range, within the tribe Triticeae (Aegilops, Elymus, Hordeum and Triticum) but it is less diverse than previously documented. The other three species are restricted to single genera in Poeae (P. pseudostriiformis on Poa; P. striiformoides on Dactylis) or Stipeae (P. gansensis on Achnatherum). Urediniospore size and surface echinulation, especially as seen by SEM, germ pore number, shape of uredinial paraphyses, and teliospore hilum width were the main features used to differentiate species. Relying solely on the symptom of linearly aligned uredinia on chlorotic stripes on leaves, from which the common name stripe rust was derived, is not recommended because sod of other leaf rust species may also form in a linear series. Crown Copyright (C) 2010 Published by Elsevier Ltd on behalf of The British Mycological Society. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据