{"title":"伊朗由 Paramyrothecium roridum 引起的矮牵牛茎腐病","authors":"Abbas Atashi Khalilabad, Khalil-Berdi Fotouhifar","doi":"10.1007/s13314-024-00553-2","DOIUrl":null,"url":null,"abstract":"<div><p>Brown circular stem canker symptom was observed on common bean plants in Mahallat county, Markazi province, Iran, in the summer of 2022. Five identical associated fungal isolates were recovered from the infected plants. Morphological and molecular characterization of the representative isolate (UTR38) using the partial sequence of beta-tubulin, and as well as RNA polymerase II second largest subunit loci was done. The associated fungus was identified as <i>Paramyrothecium roridum</i>. Pathogenicity of the isolate UTR38 was conducted on six-week-old seedling stems of the <i>P. vulgaris</i> cultivar Sunray. The inoculated fungus was also reisolated from the inoculated plants to fulfill the Koch’s postulates. According to the results, this is the first report of <i>P. roridum</i> as the causal agent of stem canker disease in <i>P. vulgaris</i> in Iran and worldwide.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Stem canker disease of Phaseolus vulgaris caused by Paramyrothecium roridum in Iran\",\"authors\":\"Abbas Atashi Khalilabad, Khalil-Berdi Fotouhifar\",\"doi\":\"10.1007/s13314-024-00553-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Brown circular stem canker symptom was observed on common bean plants in Mahallat county, Markazi province, Iran, in the summer of 2022. Five identical associated fungal isolates were recovered from the infected plants. Morphological and molecular characterization of the representative isolate (UTR38) using the partial sequence of beta-tubulin, and as well as RNA polymerase II second largest subunit loci was done. The associated fungus was identified as <i>Paramyrothecium roridum</i>. Pathogenicity of the isolate UTR38 was conducted on six-week-old seedling stems of the <i>P. vulgaris</i> cultivar Sunray. The inoculated fungus was also reisolated from the inoculated plants to fulfill the Koch’s postulates. According to the results, this is the first report of <i>P. roridum</i> as the causal agent of stem canker disease in <i>P. vulgaris</i> in Iran and worldwide.</p></div>\",\"PeriodicalId\":45862,\"journal\":{\"name\":\"Australasian Plant Disease Notes\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2024-10-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Australasian Plant Disease Notes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13314-024-00553-2\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Australasian Plant Disease Notes","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s13314-024-00553-2","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
2022 年夏季，在伊朗马尔卡济省马哈拉特县的普通豆科植物上观察到褐色环状茎腐烂病症状。从受感染的植株中发现了五株相同的相关真菌分离株。利用 beta-微管蛋白和 RNA 聚合酶 II 第二大亚基位点的部分序列，对代表性分离物（UTR38）进行了形态学和分子鉴定。相关真菌被鉴定为 Paramyrothecium roridum。对分离株 UTR38 的致病性进行了研究，研究对象是六周大的矮牵牛（P. vulgaris）栽培品种 Sunray 的幼苗茎。还从接种植物中重新分离出了接种真菌，以符合科赫假说。根据研究结果，这是伊朗乃至世界范围内首次报道 P. roridum 是矮牵牛茎腐病的病原菌。
Stem canker disease of Phaseolus vulgaris caused by Paramyrothecium roridum in Iran
Brown circular stem canker symptom was observed on common bean plants in Mahallat county, Markazi province, Iran, in the summer of 2022. Five identical associated fungal isolates were recovered from the infected plants. Morphological and molecular characterization of the representative isolate (UTR38) using the partial sequence of beta-tubulin, and as well as RNA polymerase II second largest subunit loci was done. The associated fungus was identified as Paramyrothecium roridum. Pathogenicity of the isolate UTR38 was conducted on six-week-old seedling stems of the P. vulgaris cultivar Sunray. The inoculated fungus was also reisolated from the inoculated plants to fulfill the Koch’s postulates. According to the results, this is the first report of P. roridum as the causal agent of stem canker disease in P. vulgaris in Iran and worldwide.
期刊介绍：
Australasian Plant Disease Notes is an international journal for publication of short reports from all countries which describe original research that transcends national boundaries. All aspects of plant pathology are covered including new geographical records of diseases or pathogens, new pathogens or pathogen strains, taxonomic papers, quarantine notes, disease management and diagnostic methods. Australasian Plant Disease Notes is a publication of the Australasian Plant Pathology Society.
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