Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in Korea
While investigation of the fungal diseases on apples collected from Cheongsong-gun and Bonghwa-gun in Gyeongbuk province, Korea, between August and September 2023 isolated f ive fungal strains from fruits with sooty blotch and flyspeck (SBFS) disease. The strains were designated as KNUF-23-CS02, KNU...
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The Korean Society of Mycology
2024-06-01
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| Series: | 한국균학회지 |
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| Online Access: | https://www.kjmycology.or.kr/5202-07/ |
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| author | Jun-Woo Choi Seong-Keun Lim Seo-Ryeong Lee Chang-Gi Back In-Kyu Kang Seung-Yeol Lee Hee-Young Jung |
| author_facet | Jun-Woo Choi Seong-Keun Lim Seo-Ryeong Lee Chang-Gi Back In-Kyu Kang Seung-Yeol Lee Hee-Young Jung |
| author_sort | Jun-Woo Choi |
| collection | DOAJ |
| description | While investigation of the fungal diseases on apples collected from Cheongsong-gun and Bonghwa-gun in Gyeongbuk province, Korea, between August and September 2023 isolated f ive fungal strains from fruits with sooty blotch and flyspeck (SBFS) disease. The strains were designated as KNUF-23-CS02, KNUF-23-CS-06, KNUF-23-CS12, KNUF-23-BH01, and KNUF-23BH03. When grown on potato dextrose agar and 2% water agar, the cultural characteristics of the strains were similar to those previously reported characteristics of Peltaster fructicola Pf001. The strains produced monoblastic, hyaline conidiogenous cells; the conidia were hyaline, unicellular, cylindrical to ovoidal, and 3.5-7×1.7-3.9 and 4.0-6.6×1.8-3.2 μm in size on synthetic nutrient-poor agar or water agars, respectively. Secondary conidia production by microcyclic conidiation and budding was observed. The KNUF-23-BH03 strain was shown to cause SBFS symptoms similar to those observed on the apples in the pathogenicity test. Molecular phylogenetic analyses were conducted based on the isolated species sequences of the internal transcribed spacer region, nuclear large ribosomal DNA subunit, and mitochondrial small ribosomal RNA subunit gene. The five strains were clustered with Peltaster fructicola Pf001. Based on the cultural and morphological characteristics and phylogenetic analysis, the five strains were identified as Peltaster fructicola, which has not been previously reported in Korea. |
| format | Article |
| id | doaj-art-dac4bf214f6e4f38bd19802e1f5c66f4 |
| institution | Kabale University |
| issn | 0253-651X 2383-5249 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | The Korean Society of Mycology |
| record_format | Article |
| series | 한국균학회지 |
| spelling | doaj-art-dac4bf214f6e4f38bd19802e1f5c66f42025-08-20T03:46:21ZengThe Korean Society of Mycology한국균학회지0253-651X2383-52492024-06-0152214515310.4489/kjm.520207Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in KoreaJun-Woo Choi0Seong-Keun Lim1Seo-Ryeong Lee2Chang-Gi Back3In-Kyu Kang4Seung-Yeol Lee5Hee-Young Jung6Department of Plant Medicine, Kyungpook National University, Daegu 41566, KoreaDepartment of Plant Medicine, Kyungpook National University, Daegu 41566, KoreaDepartment of Plant Medicine, Kyungpook National University, Daegu 41566, KoreaDepartment of Environmental Horticulture and Landscape Architecture, Environmental Horticulture, Dankook University, Cheonan 31116, KoreaDepartment of Horticultural Science, Kyungpook National University, Daegu 41566, KoreaInstitute of Plant Medicine, Kyungpook National University, Daegu 41566, KoreaInstitute of Plant Medicine, Kyungpook National University, Daegu 41566, KoreaWhile investigation of the fungal diseases on apples collected from Cheongsong-gun and Bonghwa-gun in Gyeongbuk province, Korea, between August and September 2023 isolated f ive fungal strains from fruits with sooty blotch and flyspeck (SBFS) disease. The strains were designated as KNUF-23-CS02, KNUF-23-CS-06, KNUF-23-CS12, KNUF-23-BH01, and KNUF-23BH03. When grown on potato dextrose agar and 2% water agar, the cultural characteristics of the strains were similar to those previously reported characteristics of Peltaster fructicola Pf001. The strains produced monoblastic, hyaline conidiogenous cells; the conidia were hyaline, unicellular, cylindrical to ovoidal, and 3.5-7×1.7-3.9 and 4.0-6.6×1.8-3.2 μm in size on synthetic nutrient-poor agar or water agars, respectively. Secondary conidia production by microcyclic conidiation and budding was observed. The KNUF-23-BH03 strain was shown to cause SBFS symptoms similar to those observed on the apples in the pathogenicity test. Molecular phylogenetic analyses were conducted based on the isolated species sequences of the internal transcribed spacer region, nuclear large ribosomal DNA subunit, and mitochondrial small ribosomal RNA subunit gene. The five strains were clustered with Peltaster fructicola Pf001. Based on the cultural and morphological characteristics and phylogenetic analysis, the five strains were identified as Peltaster fructicola, which has not been previously reported in Korea.https://www.kjmycology.or.kr/5202-07/applemorphologypeltaster fructicolaphylogenetic analysissooty blotch and flyspeck disease |
| spellingShingle | Jun-Woo Choi Seong-Keun Lim Seo-Ryeong Lee Chang-Gi Back In-Kyu Kang Seung-Yeol Lee Hee-Young Jung Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in Korea 한국균학회지 apple morphology peltaster fructicola phylogenetic analysis sooty blotch and flyspeck disease |
| title | Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in Korea |
| title_full | Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in Korea |
| title_fullStr | Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in Korea |
| title_full_unstemmed | Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in Korea |
| title_short | Peltaster fructicola: Undescribed Sooty Blotch and Flyspeck Species on Apple Fruit in Korea |
| title_sort | peltaster fructicola undescribed sooty blotch and flyspeck species on apple fruit in korea |
| topic | apple morphology peltaster fructicola phylogenetic analysis sooty blotch and flyspeck disease |
| url | https://www.kjmycology.or.kr/5202-07/ |
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