期刊
PLANT DISEASE
卷 98, 期 3, 页码 368-378出版社
AMER PHYTOPATHOLOGICAL SOC
DOI: 10.1094/PDIS-01-13-0115-RE
关键词
-
资金
- China National Forestry Department Public Benefit Research Foundation [201104054]
In 2006, a new canker was observed on trees of Populus x euramericana '74/76' and P. x euramericana 'Zhonglin 46' in the Henan and Shandong provinces of China. The disease, which is characterized by canker with white exudates dripping from the bark, occurred mainly in the summer. A particular gram-negative, rod-shaped bacterium was repeatedly isolated from the infected samples and proven to infect trees of P x euramericana by Koch's postulates. Through a polyphasic taxonomic approach using sequence, DNA-DNA hybridization, chemtaxonomic, and phenotypic data, the poplar isolates were identified as Lonsdalea quercina subsp. populi, a subspecies very recently described based on isolates from oozing bark canker of poplar (P. x euramericana) trees in Hungary.
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