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首页> 外文期刊>Journal of Plant Protection Research >First report of twig blight of ban tulsi (Croton bonplandianus Bail.) caused by Choanephora cucurbitarum (Berk. & Ravenel) Thaxt. in India
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First report of twig blight of ban tulsi (Croton bonplandianus Bail.) caused by Choanephora cucurbitarum (Berk. & Ravenel) Thaxt. in India

机译：第一个禁止禁止突厥队（Croton Bonplandianus Bail。）由Choanephora Cucurbitarum（Berk。＆Ravenel）Thaxt引起的。 在印度

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摘要

In August 2015, twig blight disease of ban tulsi (Croton bonplandianus Bail.) caused by Choanephora cucurbitarum (Berk. & Ravenel) Thaxt. was observed for the first time, in the Gangetic alluvial region of West Bengal, India. A severe disease incidence (40-50%) showed twig blight symptoms starting with shoot apical meristem (SAM), leaf, and blossom blight symptoms. Typical symptoms were characterized by over-projecting black pin head like emerging sporangiola which formed mycelial cushion on the infected surface. The present report describes the identification of the causal pathogen as C. cucurbitarum based on its morphology and the internal transcribed spacer of its ribosomal DNA (rDNA - ITS) sequences with 100% identity of NCBI-GenBank published Choanephora database. Optimum temperatures, 28-30°C, coupled with high relative humidity (80-90%) during the monsoon season enhances the disease's progress. To the best of our knowledge this is the first report of twig blight of C. bonplandianus, causedby C. cucurbitarum, in India as well as globally.
机译：2015年8月，Ban Tulsi（Croton Bonplandianus Bail）的Twig Blight疾病。由Choanephora Cucurbitarum（Berk。＆Ravenel）Thaxt引起的。在印度西孟加拉邦的甘胆冲积地区首次被观察到。严重的疾病发病率（40-50％）显示枝条枯萎病毒，以拍摄顶端公司（SAM），叶子和开花枯萎病毒。通过过度突出的黑色销头，如出现的Sporangiola在感染的表面上形成菌丝体垫，其特征在于，典型的症状。本报告描述了基于其核糖体DNA（RDNA - ITS）序列的形态和内部转录的序列，其核糖瘤DNA（RDNA - ITS）序列的核心病原体的鉴定为核糖核桃序列的序列，其鉴定为核糖核桃群体的序列。最佳温度，28-30°C，在季风季节期间与高相对湿度（80-90％）加上疾病的进展。据我们所知，这是C. Bonplandarianus的第一份Twig Bonplandarum，导致C. Cucurbitarum，在印度和全球范围内。

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