Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular Techniques

Colletotrichum species is known as the major causal pathogen of red pepper anthracnose in Korea and various groups of fungicides are registered for the management of the disease. However, the consistent use of fungicides has resulted in the development of resistance in many red pepper-growing areas...

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Main Authors: Dalha Abdulkadir Isa, Heung Tae Kim
Format: Article
Language:English
Published: Hanrimwon Publishing Company 2022-12-01
Series:The Plant Pathology Journal
Subjects:
Online Access:http://www.ppjonline.org/upload/pdf/PPJ-OA-05-2022-0069.pdf
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author Dalha Abdulkadir Isa
Heung Tae Kim
author_facet Dalha Abdulkadir Isa
Heung Tae Kim
author_sort Dalha Abdulkadir Isa
collection DOAJ
description Colletotrichum species is known as the major causal pathogen of red pepper anthracnose in Korea and various groups of fungicides are registered for the management of the disease. However, the consistent use of fungicides has resulted in the development of resistance in many red pepper-growing areas of Korea. Effective management of the occurrence of fungicide resistance depends on constant monitoring and early detection. Thus, in this study, various methods such as agar dilution method (ADM), gene sequencing, allele-specific polymerase chain reaction (PCR), and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) were applied for the detection of benzimidazole resistance among 24 isolates of Colletotrichum acutatum s. lat. and Colletotrichum gloeosporioides s. lat. The result of the ADM showed that C. gloeosporioides s. lat. was classified into sensitive and resistant isolates to benomyl while C. acutatum s. lat. was insensitive at ≥1 μg/ml of benomyl. The sequence analysis of the β-tubulin gene showed the presence of a single nucleotide mutation at the 198th amino acid position of five isolates (16CACY14, 16CAYY19, 15HN5, 15KJ1, and 16CAYY7) of C. gloeosporioides s. lat. Allele-specific PCR and PCR-RFLP were used to detect point mutation at 198th amino acid position and this was done within a day unlike ADM which usually takes more than one week and thus saving time and resources that are essential in the fungicide resistance management in the field. Therefore, the molecular techniques established in this study can warrant early detection of benzimidazole fungicide resistance for the adoption of management strategies that can prevent yield losses among farmers.
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spelling doaj.art-0e56a6dc400d45e19b63d9852f44d8c02022-12-22T04:41:35ZengHanrimwon Publishing CompanyThe Plant Pathology Journal1598-22542093-92802022-12-0138662963610.5423/PPJ.OA.05.2022.00692357Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular TechniquesDalha Abdulkadir IsaHeung Tae KimColletotrichum species is known as the major causal pathogen of red pepper anthracnose in Korea and various groups of fungicides are registered for the management of the disease. However, the consistent use of fungicides has resulted in the development of resistance in many red pepper-growing areas of Korea. Effective management of the occurrence of fungicide resistance depends on constant monitoring and early detection. Thus, in this study, various methods such as agar dilution method (ADM), gene sequencing, allele-specific polymerase chain reaction (PCR), and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) were applied for the detection of benzimidazole resistance among 24 isolates of Colletotrichum acutatum s. lat. and Colletotrichum gloeosporioides s. lat. The result of the ADM showed that C. gloeosporioides s. lat. was classified into sensitive and resistant isolates to benomyl while C. acutatum s. lat. was insensitive at ≥1 μg/ml of benomyl. The sequence analysis of the β-tubulin gene showed the presence of a single nucleotide mutation at the 198th amino acid position of five isolates (16CACY14, 16CAYY19, 15HN5, 15KJ1, and 16CAYY7) of C. gloeosporioides s. lat. Allele-specific PCR and PCR-RFLP were used to detect point mutation at 198th amino acid position and this was done within a day unlike ADM which usually takes more than one week and thus saving time and resources that are essential in the fungicide resistance management in the field. Therefore, the molecular techniques established in this study can warrant early detection of benzimidazole fungicide resistance for the adoption of management strategies that can prevent yield losses among farmers.http://www.ppjonline.org/upload/pdf/PPJ-OA-05-2022-0069.pdfbenomylβ-tubulin genefungicide resistancered pepper anthracnose
spellingShingle Dalha Abdulkadir Isa
Heung Tae Kim
Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular Techniques
The Plant Pathology Journal
benomyl
β-tubulin gene
fungicide resistance
red pepper anthracnose
title Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular Techniques
title_full Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular Techniques
title_fullStr Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular Techniques
title_full_unstemmed Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular Techniques
title_short Detection of Colletotrichum spp. Resistant to Benomyl by Using Molecular Techniques
title_sort detection of colletotrichum spp resistant to benomyl by using molecular techniques
topic benomyl
β-tubulin gene
fungicide resistance
red pepper anthracnose
url http://www.ppjonline.org/upload/pdf/PPJ-OA-05-2022-0069.pdf
work_keys_str_mv AT dalhaabdulkadirisa detectionofcolletotrichumsppresistanttobenomylbyusingmoleculartechniques
AT heungtaekim detectionofcolletotrichumsppresistanttobenomylbyusingmoleculartechniques