首页|Identification,pathogenicity,and fungicide sensitivity of Eutiarosporella dactylidis associated with leaf blight on maize in China

Identification,pathogenicity,and fungicide sensitivity of Eutiarosporella dactylidis associated with leaf blight on maize in China

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  • 国家科技期刊平台
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  • NSTL
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Maize(Zea mays L.)is an economically vital grain crop that is cultivated worldwide.In 2011,a maize foliar disease was detected in Lingtai and Lintao counties in Gansu Province,China.The characteristic signs and symptoms of this disease include irregular chlorotic lesions on the tips and edges of infected leaves and black punctate fruiting bodies in dead leaf tissues.Given favourable environmental conditions,this disease spread to areas surrounding Gansu.In this study,infected leaves were collected from Gansu and Ningxia Hui Autonomous Region between 2018 and 2020 to identify the disease-causing pathogen.Based on morphological features,pathogenicity tests,and multi-locus phylogenetic analysis involving internal transcribed spacer(ITS),18S small subunit rDNA(SSU),28S large subunit rDNA(LSU),translation elongation factor 1-alpha(TEF),and β-tubulin(TUB)sequences,Eutiarosporella dactylidis was identified as the causative pathogen of this newly discovered leaf blight.Furthermore,an in vitro bioassay was conducted on representative strains using six fungicides,and both fludioxonil and carbendazim were found to significantly inhibit the mycelial growth of E.dactylidis.The results of this study provide a reference for the detection and management of Eutiarosporella leaf blight.

maize leaf blightmorphologymolecular phylogenyEutiarosporella dactylidisfungicide sensitivity

Cheng Guo、Xiaojie Zhang、Baobao Wang、Zhihuan Yang、Jiping Li、Shengjun Xu、Chunming Wang、Zhijie Guo、Tianwang Zhou、Liu Hong、Xiaoming Wang、Canxing Duan

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Institute of Plant Protection,Gansu Academy of Agricultural Sciences,Lanzhou 730070,China

Pratacultural College,Gansu Agricultural University,Lanzhou 730070,China

Shijiazhuang Academy of Agriculture and Forestry Sciences,Shijiazhuang 050050,China

Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,China

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Doctor Foundation of Gansu Academy of Agricultural Sciences,ChinaYoung Science and Technology Lifting Engineering Talents in Gansu Province,ChinaAgricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences

2020GAAS332020-18CAAS-ASTIP-2017-ICS

2024

10.1016/j.jia.2023.09.032

农业科学学报(英文)
中国农业科学院农业信息研究所

农业科学学报(英文)

CSTPCD
影响因子：0.576
ISSN：2095-3119
年,卷(期)：2024.23(3)
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