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20240229163136.0 |
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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-06-20-1300-PDN
|2 doi
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|a pubmed24n1308.xml
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|a (NLM)32748723
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|a eng
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| 100 |
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|a Yin, Caiping
|e verfasserin
|4 aut
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|a First Report of Powdery Mildew Caused by Erysiphe berberidis on Berberis fortunei in China
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 27.02.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Berberis fortune (Lindl.) is commonly used in Chinese traditional medicine (Liu et al. 2020). In April 2020, white powdery colonies covering up to 100% of both upper leaf surfaces and calyces were observed on this species growing on Anhui Agricultural University campus (31°51'51″N; 117°15'31″E) in Hefei City, Anhui Province, China. Sporulating mycelia were white and effuse. Conidiophores were erect, with straight, cylindrical foot cells, 20 to 26 × 9 to 12 μm (average: 24 × 11 µm) (n = 30), followed by one to three shorter cells, and producing conidia in chains. Conidia were ellipsoid-ovoid, subcylindrical, and measured 27 to 36 × 12 to 16.5 µm (average: 32.4 × 14.1 µm) (n = 50). For accurate identification, DNA was extracted from the mycelia, which were collected by scraping symptomatic leaves. The internal transcribed spacer (ITS) was amplified and sequenced using primers ITS1/ITS4. The 623-bp ITS (GenBank accession no. MT449013) showed 99% identity with those of Erysiphe berberidis LC010057 (Takamatsu et al. 2015), KY661153 and KY660920. Based on morphological characteristics and phylogenetic analysis, the powdery mildew fungus on B. fortunei was identified as E. berberidis (Glawe, D. A. 2003). Ten leaves on an asymptomatic B. fortunei were inoculated by gently pressing diseased leaves against the surface of healthy leaves. Ten non-inoculated plants served as controls. All plants were maintained in a greenhouse at 22 to 25°C and >80% relative humidity. Inoculated plants developed powdery mildew colonies after 14 days, whereas uninoculated plants remained healthy. Morphological and molecular characters of the powdery mildew fungus on artificially inoculated plants were identical to those on naturally infected B. fortune. Previously in Siberia, Russia, powdery mildew on woody plants has been reported to be caused by E. berberidis (Tomoshevich M. A. 2019). However, this is the first report of powdery mildew caused by E. berberidis on B. fortunei in China. Its identification will establish a foundation for controlling the disease in China
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| 650 |
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|a Journal Article
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| 650 |
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4 |
|a Berberis fortunei
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| 650 |
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4 |
|a Erysiphe berberidis
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| 650 |
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4 |
|a Powdery Mildew
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| 700 |
1 |
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|a Zhang, Shuxiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Lijun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Xueshi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Yinglao
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g (2020) vom: 04. Aug.
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
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|g year:2020
|g day:04
|g month:08
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|u http://dx.doi.org/10.1094/PDIS-06-20-1300-PDN
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