文献类型：期刊文献

英文题名：Nigrospora spp. (Apiosporaceae) Associated With Diseased Rice Leaves in Guizhou Province, China

作者：Han, Jiajun Bao, Danfeng Tian, Xingguo Samarakoon, Milan C.

第一作者：Han, Jiajun

通信作者：Samarakoon, MC[1];Tian, XG[2]

机构：[1]Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai, Thailand;[2]Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang, Peoples R China;[3]Guizhou Univ, Engn Res Ctr Utilizat Characterist Biopharmaceut R, Minist Educ, Guiyang, Peoples R China

第一机构：Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai, Thailand

通信机构：corresponding author), Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai, Thailand;corresponding author), Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang, Peoples R China.|贵州理工学院食品药品制造工程学院;贵州理工学院;

年份：2026

卷号：64

期号：3

外文期刊名：NEW ZEALAND JOURNAL OF BOTANY

收录：;Scopus(收录号：2-s2.0-105045202561);WOS:【SCI-EXPANDED(收录号:WOS:001824753000001)】；

基金：This study was supported by the Science and Technology Foundation of Guizhou Province (Qian Ke He Pingtai ZSYS [2025] 029), the Guizhou Provincial Basic Research Program (Natural Science) (No. QianKeHe Basic -MS (2025) general program 666), and the Postdoctoral Fellowship Program of CPSF under grant number GZC2024034. This research was partially supported by Chiang Mai University, Thailand.

语种：英文

外文关键词：crop protection; emerging plant diseases; molecular phylogeny; rice-associated fungi; taxonomy

摘要：Plant pathogenic Nigrospora species have emerged as important threats to rice cultivation worldwide. During an ongoing survey of fungi associated with cultivated rice (Oryza sativa L.) leaves in Guizhou Province, 11 Nigrospora isolates were recovered from 17 diseased leaf samples collected between April and June 2024. All isolates were obtained from rice leaf spots. Integration of detailed morphological observations with multilocus phylogenetic analyses based on three loci, namely internal transcribed spacer, translation elongation factor 1-alpha, and partial beta-tubulin, demonstrated that the examined isolates represent five Nigrospora species: N. chinensis (one isolate), N. globospora (one isolate), N. musae (two isolates), N. oryzae (six isolates), and N. sphaerica (one isolate). This study represents the first report of N. globospora associated with rice. These findings provide new insights into the diversity and distribution of Nigrospora species associated with diseased rice leaves in Guizhou Province. In addition, this study provides an updated overview of Nigrospora species reported as plant pathogens, together with the plant diseases they cause and their known geographic distribution.