First report of Leucobacter aridicollis causes leaf spot disease on Dendrobium officinale in Guizhou Province, China,Crop Protection

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First report of Leucobacter aridicollis causes leaf spot disease on Dendrobium officinale in Guizhou Province, China
Crop Protection ( IF 2.5 ) Pub Date : 2024-06-03 , DOI: 10.1016/j.cropro.2024.106779
Ruotong Li , Ke Hu , Yi Ding , Xun Liao , Xiaomin Wang , Yufei Zhou , Ming Li , Rongyu Li

(Kimura and Migo) is a precious herb cultivated in lots of provinces in China. During a investigation in April 2022, we observed some leaf spot symptoms in the field in Guizhou Province, China. Samples of diseased leaves in showed spot symptoms (yellow speckle, brown necrotic sunken and emerged lesions). The study obtained two isolates from collected samples, which were characterised by morpho-molecular phylogenetic analysis and pathogenicity tests on leaves. The colony belonged to gram-positive bacteria and was rod-shaped. The pathogens were identified as The pathogenicity test declared that might cause spot similarly symptoms as detected in field, thus confirming that was the pathogen for leaf spot disease on . As is well known, this study is reported for the first time causing leaf spot disease on . The study should provide vital theories into the management of diseases in field.

更新日期：2024-06-03

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