文献类型：期刊文献

英文题名：A New Record of Neohelicosporium guangxiense and Its Secondary Metabolites

作者：Zhang, Lijuan Ma, Jian Ma, Xiaoyan Feng, Xin Bai, Xuesong Huang, Yongtao Jayawardena, Ruvishika S. Mapook, Ausana Kang, Jichuan Lu, Yongzhong

第一作者：Zhang, Lijuan;张丽娟

通信作者：Lu, YZ[1];Lu, YZ[2]

机构：[1]Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Mae Fah Luang Univ, Sch Sci, Chiang Rai 57100, Thailand;[3]Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand;[4]Guizhou Univ, Engn & Res Ctr Southwest Biopharmaceut Resources, Natl Educ Minist China, Guiyang 550025, Guizhou, Peoples R China

第一机构：贵州理工学院食品药品制造工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550003, Guizhou, Peoples R China;corresponding author), Guizhou Univ, Engn & Res Ctr Southwest Biopharmaceut Resources, Natl Educ Minist China, Guiyang 550025, Guizhou, 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：2023

卷号：50

期号：2

外文期刊名：CHIANG MAI JOURNAL OF SCIENCE

收录：;Scopus(收录号：2-s2.0-85152728676);WOS:【SCI-EXPANDED(收录号:WOS:000982093200002)】；

基金：This work was funded by the Science and Technology Foundation of Guizhou Province [No. (2020) 1Y058] , the National Natural Science Foundation of China (NSFC 31900020) , the China Postdoctoral Science Foundation Project (No. 2020M683657XB) , the Guizhou Province high-level talent innovation and entrepreneurship merit funding project (No. 202104) , the Guizhou Province undergraduate innovation and entrepreneurship project (No. S202114440085) , and the academic emerging project of Guizhou Institute of Technology (No. GZLGXM-15) .

语种：英文

外文关键词：Helicosporous hyphomycetes; saprophytic fungi; new record; secondary metabolites

摘要：In a diversity study of helicosporous hyphomycetes, a new record viz. Neohelicosporium guangxiense was collected, isolated and identified based on multi-gene phylogenetic analyses and morphological evidence. In this study, secondary metabolites of N. guangxiense were also investigated, from which four compounds were isolated and identified, including three alpha-tetralon derivatives (1-3) and one isocoumarin derivative (4). This is the first time that these compounds were isolated from the fungal genus Neohelicosporium, and compound 1 was firstly isolated from natural resources. Their structures were assigned based on the extensive 1D/2D NMR spectroscopic analyses, ESI-MS, and HR-ESI-MS measurements, especially the 2D NMR spectra of compound 1 were described in detail, and the absolute configuration of compound 1 was also elucidated for the first time. Furthermore, the bioactivities of all compounds were inactive in our bioassays.