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http://dx.doi.org/10.5423/PPJ.2009.25.1.091

First Report on Bacterial Heart Rot of Garlic Caused by Pseudomonas fluorescens in China  

Li, Bin (Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University)
Yu, Rong Rong (School of Medicine, Zhejiang University)
Yu, Shan Hong (Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University)
Qiu, Wen (Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University)
Fang, Yuan (Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University)
Xie, Guan Lin (Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University)
Publication Information
The Plant Pathology Journal / v.25, no.1, 2009 , pp. 91-94 More about this Journal
Abstract
An unreported disease of garlic was observed in commercial fields in Jiangsu province, China. The symptoms started as water soaked lesions at the base of the leaves. Later, water-soaked areas developed on stems and spread to the internal tissues, followed by yellowing and necrosis along leaf edges and soft rot of the stems. The causal organism isolated from symptomatic plants was identified as Pseudomonas fluorescens based on its biochemical and physiological characteristics and confirmed by the cellular fatty acid composition and Biolog data as well as 168 rRNA gene sequence analysis. The bacterial isolates caused similar symptoms when inoculated onto garlic plants. In addition, leek and shallot were susceptible to the P. fluorescens pathogen. However, the P. fluorescens pathogen failed to cause any symptoms when it was inoculated onto 15 other plants. This is the first report of a bacterial disease of garlic caused by P. fluorescens in China.
Keywords
garlic; heart rot disease; host range; identification; Pseudomonas fluorescens;
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Times Cited By KSCI : 7  (Citation Analysis)
Times Cited By Web Of Science : 4  (Related Records In Web of Science)
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