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首页> 外文期刊>Plant Disease >First report of leaf spot of Dieffenbachia picta and Aglaonema commutatum caused by Burkholderia gladioli in Argentina.
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First report of leaf spot of Dieffenbachia picta and Aglaonema commutatum caused by Burkholderia gladioli in Argentina.

机译：由阿根廷伯克霍尔德氏菌引起的 Dieffenbachia picta 和 Aglaonema commutatum 叶斑的首次报道。

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摘要

In May 2008 (austral autumn), an uncharacterized disease was observed on Dieffenbachia picta [D. maculata] and Aglaonema commutatum in commercial greenhouses in Pontevedra, Argentina. Affected plants showed irregular, brown lesions on leaves, approximately 15-20 mm in diameter, surrounded by water-soaked haloes that progressed inward from the margins. Water-soaked rotting symptoms were also observed in petioles. The disease incidence approached 80%. Based on morphological, biochemical, molecular observations, and pathogenicity tests, the pathogens was identified as B. gladioli. This is thought to be the first report of B. gladioli on Dieffenbachia picta and Aglaonema commutatum.
机译：2008年5月（秋季），在 Dieffenbachia picta [ D。 maculata ]和 Aglaonema commutatum 在阿根廷蓬特韦德拉的商业温室中。受影响的植物在叶片上显示出不规则的棕色病变，直径约15-20毫米，周围是浸透水的晕圈，晕圈从边缘向内生长。在叶柄中也观察到水浸烂的腐烂症状。该病发病率接近80％。基于形态，生化，分子观察和致病性测试，病原体被鉴定为 B。剑兰。这被认为是 B的第一份报告。 Dieffenbachia picta 和 Aglaonema commutatum 上的剑兰。

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