Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of China
White mold of pea caused by Sclerotinia sclerotiorum is a common disease in China. However, we discovered that the diverse Sclerotinia species could cause white mold on pea plants in Chongqing and Sichuan of China during recent disease surveys. Thus, the objective of this study was to confirm the ca...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311921636298 |
| _version_ | 1818663667738083328 |
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| author | Dong DENG Su-li SUN Chen-zhang DU Chao XIANG Jue-chen LONG Wei-dong CHEN Zhen-dong ZHU |
| author_facet | Dong DENG Su-li SUN Chen-zhang DU Chao XIANG Jue-chen LONG Wei-dong CHEN Zhen-dong ZHU |
| author_sort | Dong DENG |
| collection | DOAJ |
| description | White mold of pea caused by Sclerotinia sclerotiorum is a common disease in China. However, we discovered that the diverse Sclerotinia species could cause white mold on pea plants in Chongqing and Sichuan of China during recent disease surveys. Thus, the objective of this study was to confirm the causal agents from diseased pea plants. The obtained isolates of white mold from Chongqing and Sichuan were identified by morphological characters and molecular characterization to determine the pathogen species, and their pathogenicity was confirmed on pea through completing Koch's postulates. Fungal isolates of Sclerotinia-like were obtained from diseased plants or sclerotia. Based on morphological characteristics and molecular characterization, 30 isolates were identified to three species, six isolates as S. minor, seven as S. sclerotiorum, and 17 as S. trifoliorum. In pathogenicity tests on pea cultivars Zhongwan 4 and Longwan 1, all 30 isolates caused typical symptoms of white mold on the inoculated plants, and the inoculated pathogens were re-isolated from the diseased plants. This study confirmed that white mold of pea was caused by three Sclerotinia species, S. sclerotiorum, S. minor and S. trifoliorum in Chongqing and Sichuan. It is the first report that S. minor and S. trifoliorum cause white mold of pea in Southwest China. |
| first_indexed | 2024-12-17T05:20:30Z |
| format | Article |
| id | doaj.art-612a24e516de43a9a09a675aa171ae7a |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-17T05:20:30Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-612a24e516de43a9a09a675aa171ae7a2022-12-21T22:01:59ZengElsevierJournal of Integrative Agriculture2095-31192021-11-01201129572965Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of ChinaDong DENG0Su-li SUN1Chen-zhang DU2Chao XIANG3Jue-chen LONG4Wei-dong CHEN5Zhen-dong ZHU6Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.ChinaInstitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.ChinaChongqing Academy of Agricultural Sciences, Chongqing 402160, P.R.ChinaCrop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, P.R.ChinaChongqing Academy of Agricultural Sciences, Chongqing 402160, P.R.ChinaUnited States Department of Agriculture-Agricultural Research Service, Washington State University, Pullman, WA 99164, USAInstitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China; Correspondence ZHU Zhen-dong, Tel: +86-10-82109609, Fax: +86-10-82109608White mold of pea caused by Sclerotinia sclerotiorum is a common disease in China. However, we discovered that the diverse Sclerotinia species could cause white mold on pea plants in Chongqing and Sichuan of China during recent disease surveys. Thus, the objective of this study was to confirm the causal agents from diseased pea plants. The obtained isolates of white mold from Chongqing and Sichuan were identified by morphological characters and molecular characterization to determine the pathogen species, and their pathogenicity was confirmed on pea through completing Koch's postulates. Fungal isolates of Sclerotinia-like were obtained from diseased plants or sclerotia. Based on morphological characteristics and molecular characterization, 30 isolates were identified to three species, six isolates as S. minor, seven as S. sclerotiorum, and 17 as S. trifoliorum. In pathogenicity tests on pea cultivars Zhongwan 4 and Longwan 1, all 30 isolates caused typical symptoms of white mold on the inoculated plants, and the inoculated pathogens were re-isolated from the diseased plants. This study confirmed that white mold of pea was caused by three Sclerotinia species, S. sclerotiorum, S. minor and S. trifoliorum in Chongqing and Sichuan. It is the first report that S. minor and S. trifoliorum cause white mold of pea in Southwest China.http://www.sciencedirect.com/science/article/pii/S2095311921636298Pisum sativum, white moldSclerotinia sclerotiorumSclerotinia minorSclerotinia trifoliorum |
| spellingShingle | Dong DENG Su-li SUN Chen-zhang DU Chao XIANG Jue-chen LONG Wei-dong CHEN Zhen-dong ZHU Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of China Journal of Integrative Agriculture Pisum sativum, white mold Sclerotinia sclerotiorum Sclerotinia minor Sclerotinia trifoliorum |
| title | Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of China |
| title_full | Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of China |
| title_fullStr | Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of China |
| title_full_unstemmed | Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of China |
| title_short | Three Sclerotinia species as the cause of white mold on pea in Chongqing and Sichuan of China |
| title_sort | three sclerotinia species as the cause of white mold on pea in chongqing and sichuan of china |
| topic | Pisum sativum, white mold Sclerotinia sclerotiorum Sclerotinia minor Sclerotinia trifoliorum |
| url | http://www.sciencedirect.com/science/article/pii/S2095311921636298 |
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