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Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin

Colletotrichum gloeosporioides species complex (CGSC) is the major pathogen causing strawberry anthracnose in Taiwan. Benzimidazoles and strobilurins are common fungicides used to control strawberry anthracnose. A total of 108 CGSC isolates were collected from five major strawberry-producing areas i...

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Autores principales: Chu, Sheng-Chi, Lin, Kuo-Hsi, Lin, Tsung-Chun, Thanarut, Chinnapan, Chung, Wen-Hsin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pesticide Science Society of Japan 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9716047/
https://www.ncbi.nlm.nih.gov/pubmed/36514689
http://dx.doi.org/10.1584/jpestics.D22-030
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author Chu, Sheng-Chi
Lin, Kuo-Hsi
Lin, Tsung-Chun
Thanarut, Chinnapan
Chung, Wen-Hsin
author_facet Chu, Sheng-Chi
Lin, Kuo-Hsi
Lin, Tsung-Chun
Thanarut, Chinnapan
Chung, Wen-Hsin
author_sort Chu, Sheng-Chi
collection PubMed
description Colletotrichum gloeosporioides species complex (CGSC) is the major pathogen causing strawberry anthracnose in Taiwan. Benzimidazoles and strobilurins are common fungicides used to control strawberry anthracnose. A total of 108 CGSC isolates were collected from five major strawberry-producing areas in Taiwan. The half-maximal effective concentration (EC(50)) values of most CGSC isolates for benomyl (59 isolates), carbendazim (70 isolates), and thiabendazole (63 isolates) were higher than 500 µg a.i./mL. Strobilurin tests showed that the EC(50) values of most CGSC isolates for azoxystrobin (66 isolates), kresoxim-methyl (42 isolates), and trifloxystrobin (56 isolates) were higher than 500 µg a.i./mL. However, most CGSC isolates were sensitive to pyraclostrobin at 100 µg a.i./mL. Fungicide tests indicated that CGSC isolates show multi-resistance to benzimidazoles and strobilurins. Benzimidazole-resistant isolates were associated with a point mutation in codon 198 of the β-tubulin gene, and strobilurin-resistant isolates did not correspond with mutation in the cyt b gene or alternative oxidase activity.
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spelling pubmed-97160472022-12-12 Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin Chu, Sheng-Chi Lin, Kuo-Hsi Lin, Tsung-Chun Thanarut, Chinnapan Chung, Wen-Hsin J Pestic Sci Regular Article Colletotrichum gloeosporioides species complex (CGSC) is the major pathogen causing strawberry anthracnose in Taiwan. Benzimidazoles and strobilurins are common fungicides used to control strawberry anthracnose. A total of 108 CGSC isolates were collected from five major strawberry-producing areas in Taiwan. The half-maximal effective concentration (EC(50)) values of most CGSC isolates for benomyl (59 isolates), carbendazim (70 isolates), and thiabendazole (63 isolates) were higher than 500 µg a.i./mL. Strobilurin tests showed that the EC(50) values of most CGSC isolates for azoxystrobin (66 isolates), kresoxim-methyl (42 isolates), and trifloxystrobin (56 isolates) were higher than 500 µg a.i./mL. However, most CGSC isolates were sensitive to pyraclostrobin at 100 µg a.i./mL. Fungicide tests indicated that CGSC isolates show multi-resistance to benzimidazoles and strobilurins. Benzimidazole-resistant isolates were associated with a point mutation in codon 198 of the β-tubulin gene, and strobilurin-resistant isolates did not correspond with mutation in the cyt b gene or alternative oxidase activity. Pesticide Science Society of Japan 2022-11-20 /pmc/articles/PMC9716047/ /pubmed/36514689 http://dx.doi.org/10.1584/jpestics.D22-030 Text en © 2022 Pesticide Science Society of Japan https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) License.
spellingShingle Regular Article
Chu, Sheng-Chi
Lin, Kuo-Hsi
Lin, Tsung-Chun
Thanarut, Chinnapan
Chung, Wen-Hsin
Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin
title Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin
title_full Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin
title_fullStr Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin
title_full_unstemmed Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin
title_short Sensitivity of Colletotrichum gloeosporioides species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin
title_sort sensitivity of colletotrichum gloeosporioides species complex (cgsc) isolated from strawberry in taiwan to benzimidazole and strobilurin
topic Regular Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9716047/
https://www.ncbi.nlm.nih.gov/pubmed/36514689
http://dx.doi.org/10.1584/jpestics.D22-030
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