First Report of Chrysanthemum (Chrysanthemum morifolium) Crown Rot Caused by Fusarium solani in Korea

被引：7
|
作者：
Mun, Hye Yeon [1 ]
Jeong, Je Yong [1 ]
Kim, Chang Jeon [1 ]
Lee, Hyang Burm [1 ]
机构：
[1] Chonnam Natl Univ, Div Appl Biosci & Biotechnol, Kwangju 500757, South Korea
来源：
PLANT PATHOLOGY JOURNAL | 2012年 / 28卷 / 01期
关键词：
Asteraceae; rDNA sequence; outbreak; pathogenicity; WILT; SUSCEPTIBILITY;
D O I：
10.5423/PPJ.NT.10.2011.0195
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
In August 2010, a severe crown rot was observed on chrysanthemum (Chrysanthemum morifolium Ramat., variety Sinro) in several greenhouses located at Damyang and Muan, Jeonnam province, Korea. Three isolates (EML-CHS1, -CHS2, and -CHS3) of Fusarium were isolated from the affected plants and identified based on morphological characteristics and rDNA internal transcribed spacer (ITS) sequence analysis. Sequence analysis by BLAST indicated that EML-CHS1, -CHS2 and CHS3 were closest to a Fusarium species, F.solani with > 99% sequence similarity. Pathogenicity tests were performed on chrysanthemum with spore suspensions containing 3.4 x 10(6) spores/ml using the dipping method. Ten days after inoculation, similar symptoms to those observed in the greenhouses were seen on the inoculated plants. The causal fungus was reisolated from the artificially inoculated basal stems, fulfilling Koch's postulates. To our knowledge, this is the first report of crown rot by Fusarium solani on chrysanthemum (Chrysanthemum morifolium) in Korea.
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页码：49 / 54
页数：6
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