Nigrospora Species Causing Leaf Disease on Camellia Plants

IF 1.2 4区农林科学 Q3 PLANT SCIENCES Journal of Phytopathology Pub Date : 2025-01-08 DOI:10.1111/jph.70020

Linzhe Yan, Weihua Pan, Xudong Zhou

{"title":"Nigrospora Species Causing Leaf Disease on Camellia Plants","authors":"Linzhe Yan, Weihua Pan, Xudong Zhou","doi":"10.1111/jph.70020","DOIUrl":null,"url":null,"abstract":"<div>\n \n Camellia sinensis and C. japonica plant leaves with spots were collected in Zhejiang Province, China. Three representative isolates resembling Nigrospora were selected for identification and pathogenicity test. Based on morphological characteristics and phylogenetic analyses of the partial regions of internal transcribed spacer (ITS), beta-tubulin (TUB2), and translation elongation factor 1-alpha (TEF) sequences, the isolates from C. japonica were identified as Nigrospora. oryzae and N. philosophiae-doctoris, while the one from C. sinensis as N. camelliae-sinensis. Inoculation of the isolates on healthy leaves showed symptoms similar to those observed in the field, and the fungi were reisolated from the lesions. To our knowledge, this represents the first report of leaf spot disease caused by Nigrospora species on C. japonica worldwide. The result further confirms that species residing the genus of Nigrospora act as causal agents of plant leaf spot disease, and their potential impact deserves further investigation.\n </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Phytopathology","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jph.70020","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Camellia sinensis and C. japonica plant leaves with spots were collected in Zhejiang Province, China. Three representative isolates resembling Nigrospora were selected for identification and pathogenicity test. Based on morphological characteristics and phylogenetic analyses of the partial regions of internal transcribed spacer (ITS), beta-tubulin (TUB2), and translation elongation factor 1-alpha (TEF) sequences, the isolates from C. japonica were identified as Nigrospora. oryzae and N. philosophiae-doctoris, while the one from C. sinensis as N. camelliae-sinensis. Inoculation of the isolates on healthy leaves showed symptoms similar to those observed in the field, and the fungi were reisolated from the lesions. To our knowledge, this represents the first report of leaf spot disease caused by Nigrospora species on C. japonica worldwide. The result further confirms that species residing the genus of Nigrospora act as causal agents of plant leaf spot disease, and their potential impact deserves further investigation.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

引起茶树叶片病的黑孢子菌

对浙江产的山茶和山茶叶片进行了带斑点的调查。选取3株具有代表性的黑孢菌进行鉴定和致病性试验。根据内部转录间隔区（ITS）、β -微管蛋白（TUB2）和翻译延伸因子1- α (TEF)部分序列的形态特征和系统发育分析，鉴定该菌株为黑孢菌。来自中华白僵菌的一个为茶树白僵菌。将分离物接种在健康叶片上显示出与田间观察到的症状相似的症状，并且从病变中重新分离出真菌。据我们所知，这是世界上第一次报道由黑孢子虫引起的粳稻叶斑病。研究结果进一步证实了黑孢菌属植物是植物叶斑病的病原，其潜在影响有待进一步研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Journal of Phytopathology 生物-植物科学

CiteScore

2.90

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Phytopathology publishes original and review articles on all scientific aspects of applied phytopathology in agricultural and horticultural crops. Preference is given to contributions improving our understanding of the biotic and abiotic determinants of plant diseases, including epidemics and damage potential, as a basis for innovative disease management, modelling and forecasting. This includes practical aspects and the development of methods for disease diagnosis as well as infection bioassays. Studies at the population, organism, physiological, biochemical and molecular genetic level are welcome. The journal scope comprises the pathology and epidemiology of plant diseases caused by microbial pathogens, viruses and nematodes. Accepted papers should advance our conceptual knowledge of plant diseases, rather than presenting descriptive or screening data unrelated to phytopathological mechanisms or functions. Results from unrepeated experimental conditions or data with no or inappropriate statistical processing will not be considered. Authors are encouraged to look at past issues to ensure adherence to the standards of the journal.