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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-09-21-1993-RE
|2 doi
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|a pubmed24n1121.xml
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|a (DE-627)NLM33633754X
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|a (NLM)35100029
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Stergiopoulos, Ioannis
|e verfasserin
|4 aut
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| 245 |
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|a Identification of Putative SDHI Target Site Mutations in the SDHB, SDHC, and SDHD Subunits of the Grape Powdery Mildew Pathogen Erysiphe necator
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|c 2022
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 01.09.2022
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|a Date Revised 06.09.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Succinate dehydrogenase inhibitors (SDHIs) are fungicides used in control of numerous fungal plant pathogens, including Erysiphe necator, the causal agent of grapevine powdery mildew (GPM). Here, the sdhb, sdhc, and sdhd genes of E. necator were screened for mutations that may be associated with SDHI resistance. GPM samples were collected from 2017 to 2020 from the U.S. states of California, Oregon, Washington, and Michigan, and the Canadian province of British Columbia. Forty-five polymorphisms were identified in the three sdh genes, 17 of which caused missense mutations. Of these, the SDHC-p.I244V substitution was shown in this study to reduce sensitivity of E. necator to boscalid and fluopyram, whereas the SDHC-p.G25R substitution did not affect SDHI sensitivity. Of the other 15 missense mutations, the SDHC-p.H242R substitution was shown in previous studies to reduce sensitivity of E. necator toward boscalid, whereas the equivalents of the SDHB-p.H242L, SDHC-p.A83V, and SDHD-p.I71F substitutions were shown to reduce sensitivity to SDHIs in other fungi. Generally, only a single amino acid substitution was present in the SDHB, SDHC, or SDHD subunit of E. necator isolates, but missense mutations putatively associated with SDHI resistance were widely distributed in the sampled areas and increased in frequency over time. Finally, isolates that had decreased sensitivity to boscalid or fluopyram were identified but with no or only the SDHC-p.G25R amino acid substitution present in SDHB, SDHC, and SDHD subunits. This suggests that target site mutations probably are not the only mechanism conferring resistance to SDHIs in E. necator
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|a Journal Article
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|a Erysiphe necator
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| 650 |
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4 |
|a SDHB
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| 650 |
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4 |
|a SDHC
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| 650 |
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4 |
|a SDHD
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| 650 |
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4 |
|a SDHIs
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| 650 |
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4 |
|a fungicide resistance
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| 650 |
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4 |
|a fungicides
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| 650 |
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4 |
|a mutations
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| 650 |
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4 |
|a polymorphisms
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| 650 |
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4 |
|a powdery mildew
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| 650 |
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7 |
|a Enzyme Inhibitors
|2 NLM
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| 650 |
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7 |
|a Succinate Dehydrogenase
|2 NLM
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| 650 |
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7 |
|a EC 1.3.99.1
|2 NLM
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| 700 |
1 |
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|a Aoun, Nathalie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a van Huynh, Que
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Neill, Tara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lowder, Sarah R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Newbold, Chelsea
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cooper, Monica L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ding, Shunping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Moyer, Michelle M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Miles, Timothy D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Oliver, Charlotte L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Úrbez-Torres, José Ramón
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mahaffee, Walter F
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 106(2022), 9 vom: 17. Sept., Seite 2310-2320
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
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|g volume:106
|g year:2022
|g number:9
|g day:17
|g month:09
|g pages:2310-2320
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| 856 |
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|u http://dx.doi.org/10.1094/PDIS-09-21-1993-RE
|3 Volltext
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