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Citation for Study 23565

About Citation title: "Botrytis polyphyllae: A New Botrytis Species Causing Gray Mold on Paris polyphylla".
About Study name: "Botrytis polyphyllae: A New Botrytis Species Causing Gray Mold on Paris polyphylla".
About This study is part of submission 23565 (Status: Published).

Citation

Zhong S., Zhang J., & Zhang G. 2019. Botrytis polyphyllae: A New Botrytis Species Causing Gray Mold on Paris polyphylla. Plant Disease, 103(7): 1721-1727.

Authors

  • Zhong S.
  • Zhang J.
  • Zhang G.

Abstract

Paris polyphylla is an important perennial medicinal plant in China. A disease similar to gray mold on P. polyphylla occurred at the seedling stage in March 2016 and 2017 in Tengchong city, Yunnan province of China. The disease resulted in up to 50% mortality in serious cases. Isolates from diseased plants grew 10.6 mm/d at 20⁰C on PDA. After 21 days, sclerotia were spherical to elliptical (0.4?2.5 ? 0.3?1.8 mm). Conidia from diseased tissues were hyaline to pale brown, long, ovoid, unicellular and measured 15.1?24.5 ? 8.8?13.4 μm; conidiophores were 526?1064 ?12?15 μm. Isolates did not form conidiophores or conidia on PDA or MYA. A phylogenetic analysis based on G3PDH, RPB2 and HSP60 sequence data supported assignment of three representative isolates as a new species of Botrytis. Based on morphological, phylogenetic characteristics and Koch's Postulates, the causal agent of gray mold on P. polyphylla was identified as a novel species, Botrytis polyphyllae.

Keywords

Paris polyphylla, gray mold

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  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S23565
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