Identification and Characterization of Alternaria iridiaustralis Causing Leaf Spot on Iris ensata in China.
10.1080/12298093.2018.1454007
- Author:
Huan LUO
1
;
Ya Qun TAO
;
Xiao Yan FAN
;
Sang Keun OH
;
Hong Xue LU
;
Jian Xin DENG
Author Information
1. Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou, PR China. djxin555@hotmail.com, hongxuelu@163.com
- Publication Type:Note
- Keywords:
Alternaria iridiaustralis;
Iris ensata Thumb;
morphology;
pathogenicity;
sequence analysis
- MeSH:
Alternaria*;
China*;
Fungi;
Iris*;
Sequence Analysis;
Thumb;
Virulence
- From:Mycobiology
2018;46(2):168-171
- CountryRepublic of Korea
- Language:English
-
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.
