First report of Alternaria dianthicola causing flower blight on carnation in China |
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| Authors: | Chun Fang Duan Ya Qin Long Hu Chen Gen hua Yang Min Gui Guang Hua Liu |
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| Affiliation: | 1. Tropical and Subtropical Cash Crops Research Institute, YAAS, Baoshan, China;2. Party and government office of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China;3. Phytopathology Laboratory of of Yunnan Province, Yunnan Agricultural University, Kunming, China;4. Flower breeding Key Laboratory of Yunnan Province, Flower Research Institute, YAAS, Kunming, China |
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| Abstract: | ![]()
A severe disease of carnation flowers was observed in Kunming, China in November 2009. Initial symptoms on flowers and immature flower buds were characterized by water‐soaked areas. Spots with purple margins could be seen on petals of some varieties. An Alternaria sp. was isolated from 100% of symptomatic tissues sampled. The isolates showed high virulence when inoculated onto tissue culture plantlets and on healthy carnation flowers. Results of sequence analysis of 5.8S rDNA‐ITS of isolates showed 99% sequence similarity with Alternaria dianthicola in GenBank. To the best of the authors' knowledge, this was the first sighting of blight of flowers and immature flower buds of carnation caused by Alternaria dianthicola in China. |
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