Mycobiology.
2018 Jun;46(2):168-171. 10.1080/12298093.2018.1454007.
Identification and Characterization of Alternaria iridiaustralis Causing Leaf Spot on Iris ensata in China
- Affiliations
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- 1Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou, PR China. djxin555@hotmail.com, hongxuelu@163.com
- 2Department of Applied Biology, Chungnam National University, Daejeon, South Korea.
- KMID: 2428816
- DOI: http://doi.org/10.1080/12298093.2018.1454007
Abstract
- In 2016, a severe leaf spot disease was found on Iris ensata Thumb. in Nanjing, China. The symptom was elliptical, fusiform, or irregularly necrotic lesion surrounded by a yellow halo, from which a small-spored Alternaria species was isolated. The fungus was identified as Alternaria iridiaustralis based on morphological characteristics. The pathogenicity tests revealed that the fungus was the causal pathogen of the disease. Phylogenic analyses using sequences of ITS, gpd, endoPG, and RPB2 genes confirmed the morphological identification. This study is the first report of A. iridiaustralis causing leaf spots on I. ensata in China.
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