菌物研究2025，Vol.23Issue(4)：282-294,13.DOI:10.13341/j.jfr.2023.1625
亚球孢歧盖伞白化个体的发现及其挥发性成分谱
The Discovery of Albonitic Specimens of Inosperma subsphaerosporum and Its Volatile Composition Profiling
摘要
Abstract
Inosperma subsphaerosporum is a species newly discovered in 2020 from the tropical region of China.The species has subglobose or near globose shaped basidiospores,which is clearly distinguished from the other species in the family Inocybaceae Jülich.In May 2021,a new site for the distribution of this species was found in Wanning City,Hainan Province,having pure white Inospema basidiomata not yet identified.In this study,molecular analysis using nucleotide sequences derived from multiple genes was carried out,leading to a result that the pure white specimens of I.subsphaerosporum were clustered and dropped into a single and highly supported terminal branch of the phylogenetic tree.Morphological studies revealed a high compatibility of specimen characteristics between the white and yellow basidiomata,except for their color differences.Therefore,the specimen of white basidiomata was considered as a white mutant coming from the population of I.subsphaerosporum.Additional descriptions of the species were made through the morphological characterization of newly collected specimens.For understanding of metabolic differences between the two differently colored specimens(white and yellow)of I.subsphaerosporum,an examination of volatile components using headspace solid phase microextraction-gas chromatography-mass spectrometry(HS-SPME-GC-MS)was also conducted.As a result,a total of 106 volatile substances were identified,in which 48 were shared by each other while 32 and 26 compounds were unique to the yellow and white specimens respectively.关键词
白化现象/丝盖伞科/热带地区Key words
albinotic form/Inocybaceae/tropical region分类
农业科技引用本文复制引用
邓伦莎,于文杰,李海蛟,曾念开,范宇光..亚球孢歧盖伞白化个体的发现及其挥发性成分谱[J].菌物研究,2025,23(4):282-294,13.基金项目
海南省自然科学基金项目(323MS044),海南省重点研发专项(ZDYF2024SHFZ129),国家自然科学基金项目(32470008 & 32260005),海南省高等学校科学研究项目(Hnky2023ZD-8) （323MS044）
