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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-07-23-1254-RE
|2 doi
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|a pubmed25n1218.xml
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|a (NLM)38085971
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|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Zhang, Qinghua
|e verfasserin
|4 aut
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|a Bipolaris fujianensis sp. nov., an Emerging Pathogen of Sapling Shoot Blight on Chinese Fir, and Its Sensitivity to Fungicides
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 30.04.2024
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|a Date Revised 30.04.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Chinese fir is an extremely important economic tree species in southern China. In recent years, 74.5% of Chinese fir saplings suffered from shoot blight in Shunchang County, Nanping City, Fujian Province, China. Seventeen isolates were collected from rotten shoots, and their pathogenicity was confirmed following Koch's postulates. The five pathogenic isolates were identified as belonging to the genus Bipolaris based on morphological characteristics, including septate and geniculate conidiophores, smooth to slightly verruculose conidiogenous nodes, dematiaceous phragmospore conidia, oblong or fusiform conidia, and slightly protruding or truncate hilum on conidia, but the number of pseudosepta (3 to 11, mostly 5 to 8) and the size of conidia ([22.81 to 116.13] × [9.16 to 26.58] μm) are different from those of the known species of Bipolaris. A phylogenetic analysis based on ITS, GAPDH, and Tef1-α sequences determined that the five strains belong to a new species of Bipolaris, and the name Bipolaris fujianensis sp. nov. is proposed. The fungicide sensitivity of the pathogen strain Cfsb3 was further evaluated using eight fungicides. Flusilazole, difenoconazole, tebuconazole, and propiconazole exhibited high toxicity to Cfsb3, and the effective concentration inhibiting 50% (EC50) of mycelial growth was 0.08, 0.20, 0.34, and 0.36 μg/ml, respectively, for these four fungicides. Flusilazole, difenoconazole, and iprodione inhibited B. fujianensis by 100% on detached Chinese fir shoots at their recommended concentrations, but azoxystrobin and thiram were ineffective. In conclusion, this study reported an emerging pathogen of Chinese fir sapling shoot blight and proposed triazole and dicarboximide fungicides for disease control
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Bipolaris fujianensis sp. nov.
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| 650 |
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|a Chinese fir
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|a chemical control
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|a shoot blight
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| 650 |
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|a Fungicides, Industrial
|2 NLM
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| 650 |
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|a Triazoles
|2 NLM
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| 700 |
1 |
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|a Meng, Yuhan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Wenbao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Qianqian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xiaoting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xue, Lili
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Xiaochen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Chunli
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 108(2024), 4 vom: 01. Apr., Seite 1025-1032
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnas
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| 773 |
1 |
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|g volume:108
|g year:2024
|g number:4
|g day:01
|g month:04
|g pages:1025-1032
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|u http://dx.doi.org/10.1094/PDIS-07-23-1254-RE
|3 Volltext
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