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首页> 外文期刊>European Journal of Plant Pathology >Association of Pantoea ananatis and Pantoea agglomerans with leaf spot disease on ornamental plants of Araceae Family
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Association of Pantoea ananatis and Pantoea agglomerans with leaf spot disease on ornamental plants of Araceae Family

机译：与叶斑病植物植物植物植物植物植物植物植物植物植物植物的植物植物

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摘要

During a survey in 2011-2012, three ornamental plants of Araceae namely Aglaonema nitidum, Syngonium podophyllum and Dieffenbachia amoena showing foliar disease symptoms were collected from central region of Iran. Infected plants exhibited spots on their leaves which appeared as yellow and water-soaked with chlorotic haloes and necrotic center. To investigate the etiology of this disorder, symptomatic leaves were collected from affected plants and six bacterial strains (B2Y, J3Y, SY, E60Y, E68Y and E5MM) were isolated and identified as Pantoea ananatis or P. agglomerans based on morphological, physiological, biochemical and molecular characters. The pathogenicity tests of the isolates demonstrated that they were not host specific. Furthermore, 16S rRNA gene sequencing revealed that the strains were phylogenetically closely related to genus Pantoea. Multilocus sequence analysis (MLSA) of concatenated partial atpD, gyrB and rpoB gene sequences of the six isolates showed a high similarity of B2Y, J3Y, and SY strains to P. ananatis and also of E60Y, E5MM and E68Y strains to P. agglomerans. These results were confirmed by phylogenetic analysis. To the best of our knowledge, this is the first report of leaf spot and necrosis of A. nitidum, S. podophyllum and D. amoena caused by the genus Pantoea.
机译：在2011-2012的调查期间，从伊朗中部地区收集了伊朗中部地区的Aglaonema Nitivum，SyngoOnema Nitivum，SyngoOnema Nitivum，Syngonium Podophyllum和Dieffenbachia Amooena的三种观赏植物。受感染的植物在它们的叶子上展示了斑点，这些叶子出现为黄色和水浸染含氯卤素和坏死中心。为了探讨这种疾病的病因，从受影响的植物中收集症状叶片，六种细菌菌株（B2Y，J3Y，SY，E6MY，E68Y和E5MM）被分离，并鉴定为基于形态学，生理学，生物化学的Pantoea Ananatis或P.聚集体和分子字符。分离物的致病性测试证明它们不是特异性的宿主。此外，16S rRNA基因测序显示菌株与Pantoea属的系统源性密切相关。六个分离物的串联部分ATPD，陀螺和RPOB基因序列的多点序列分析（MLSA）显示出B2Y，J3Y和SY菌株的高相似性，并对厌氧和E60Y，E5MM和E68Y菌株对P.聚集体的菌株。通过系统发育分析证实了这些结果。据我们所知，这是由Pantoea属造成的A. nitivum，鼻子，脑梗死的叶斑病和坏死的第一份报告。

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