Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in Korea
Powdery mildew is a common and serious disease of the Cucurbitaceae including cucumber (Cucumis sativus) in most areas of the world. To identify causal agents of the powdery mildew and their physiological race(s), we collected cucumber leaves displaying typical symptoms of powdery mildew from differ...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Hanrimwon Publishing Company
2020-09-01
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| Series: | Research in Plant Disease |
| Subjects: | |
| Online Access: | http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2020.26.3.183 |
| _version_ | 1818191837456760832 |
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| author | Young-Ah Kim A-Ram Jeong Min Jang Chang-Jin Park |
| author_facet | Young-Ah Kim A-Ram Jeong Min Jang Chang-Jin Park |
| author_sort | Young-Ah Kim |
| collection | DOAJ |
| description | Powdery mildew is a common and serious disease of the Cucurbitaceae including cucumber (Cucumis sativus) in most areas of the world. To identify causal agents of the powdery mildew and their physiological race(s), we collected cucumber leaves displaying typical symptoms of powdery mildew from different locations in Korea. Based on morphological and molecular characteristics, all powdery mildew isolates were identified as an obligate biotrophic fungal pathogen, Podosphaera xanthii. After inoculation at melon (Cucumis melo) differentials to identify the fungal race(s), P. xanthii isolate MI180427 and IC190611 were identified as race 1 which has been repeatedly reported as dominant race in Korea. However, another isolate SE180328 produced different disease response in the tested differentials, being identified as race 2 which has not been reported in Korea. To confirm the race of SE180328, we inoculated additional melon differentials and determined the isolate as race 2F that is the prevalent race of powdery mildew in Beijing, China. Report of this new race 2F in Korea will be helpful for future breeding programs to develop resistant varieties to this race. |
| first_indexed | 2024-12-12T00:20:57Z |
| format | Article |
| id | doaj.art-ace75760e15b4b5ba4a8504a20f0d7a7 |
| institution | Directory Open Access Journal |
| issn | 1598-2262 |
| language | English |
| last_indexed | 2024-12-12T00:20:57Z |
| publishDate | 2020-09-01 |
| publisher | Hanrimwon Publishing Company |
| record_format | Article |
| series | Research in Plant Disease |
| spelling | doaj.art-ace75760e15b4b5ba4a8504a20f0d7a72022-12-22T00:44:44ZengHanrimwon Publishing CompanyResearch in Plant Disease1598-22622020-09-0126318318910.5423/RPD.2020.26.3.18310.5423RPD.2020.26.3.183Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in KoreaYoung-Ah Kim0A-Ram Jeong1Min Jang2Chang-Jin Park3Department of Bioresources Engineering, Sejong University, Seoul 05006, KoreaDepartment of Molecular Biology, Sejong University, Seoul 05006, KoreaDepartment of Bioresources Engineering, Sejong University, Seoul 05006, KoreaDepartment of Bioresources Engineering, Sejong University, Seoul 05006, KoreaPowdery mildew is a common and serious disease of the Cucurbitaceae including cucumber (Cucumis sativus) in most areas of the world. To identify causal agents of the powdery mildew and their physiological race(s), we collected cucumber leaves displaying typical symptoms of powdery mildew from different locations in Korea. Based on morphological and molecular characteristics, all powdery mildew isolates were identified as an obligate biotrophic fungal pathogen, Podosphaera xanthii. After inoculation at melon (Cucumis melo) differentials to identify the fungal race(s), P. xanthii isolate MI180427 and IC190611 were identified as race 1 which has been repeatedly reported as dominant race in Korea. However, another isolate SE180328 produced different disease response in the tested differentials, being identified as race 2 which has not been reported in Korea. To confirm the race of SE180328, we inoculated additional melon differentials and determined the isolate as race 2F that is the prevalent race of powdery mildew in Beijing, China. Report of this new race 2F in Korea will be helpful for future breeding programs to develop resistant varieties to this race.http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2020.26.3.183cucumbercucumis sativuspodosphaera xanthiipowdery mildew |
| spellingShingle | Young-Ah Kim A-Ram Jeong Min Jang Chang-Jin Park Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in Korea Research in Plant Disease cucumber cucumis sativus podosphaera xanthii powdery mildew |
| title | Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in Korea |
| title_full | Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in Korea |
| title_fullStr | Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in Korea |
| title_full_unstemmed | Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in Korea |
| title_short | Occurrence of Powdery Mildew Caused by New Race 2F of Podosphaera xanthii on Cucumber in Korea |
| title_sort | occurrence of powdery mildew caused by new race 2f of podosphaera xanthii on cucumber in korea |
| topic | cucumber cucumis sativus podosphaera xanthii powdery mildew |
| url | http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2020.26.3.183 |
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