文献类型：期刊文献

英文题名：Coriolopsis strumosa as an Orchid Endophytic Fungus and Its Spatial Distribution in Epidendrum sp. (Orchidaceae)

作者：Yao, Na[1] Wang, Tao[2] Jiang, Jingwan[2] Yang, Yuqian[2] Cao, Xiaolu[1]

第一作者：姚娜

通信作者：Cao, XL[1]

机构：[1]Chinese Acad Forestry, Natl Forestry & Grassland Adm, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat,Res Inst Forestry, Beijing 100091, Peoples R China;[2]Beijing Floriculture Engn Technol Res Ctr, Grassland Adm Plant Ex Situ Conservat, Key Lab Natl Forestry, Beijing Bot Garden, Beijing 100093, Peoples R China

年份：2024

卷号：12

期号：6

外文期刊名：MICROORGANISMS

收录：;Scopus(收录号：2-s2.0-85197130147);WOS:【SCI-EXPANDED(收录号:WOS:001257110600001)】；

基金：This work was supported by the National Natural Science Foundation of China (No.32101497 and No. 31800523).

语种：英文

外文关键词：plant endophytes; symbiosis; Polyporaceae; germination

摘要：Coriolopsis spp. are wood-decaying fungi that inhabit forests. They are mainly distributed in tropical and subtropical areas. Strain Epi910 was isolated from the asymbiotically germinated protocorm of Epidendrum sp. and identified as Coriolopsis strumosa. Symbiotic germination and high-throughput sequencing of the endophytic fungal communities of different parts were performed to characterize the function and spatial distribution of the Epi910 isolate. Under symbiotic germination, Epi910 promoted seed germination and seedling formation as an endophytic native fungus of Epidendrum sp. Endophytic fungal communities from seven different parts of Epidendrum sp. were characterized. In total, 645 OTUs were identified; 30 OTUs were shared among all seven parts. The internal transcribed spacer sequence of Epi910 was identical to that of a dominant shared OTU (OTU6). The relative abundance of OTU6 in the seven parts was identified as follows: capsule pericarp > seed > root > asymbiotically germinated protocorm > epiphytic root > ovary > rachis. Our results suggest that the isolate belonging to Coriolopsis strumosa could promote the germination of Epidendrum sp. There may, therefore, be endophytic fungi other than common orchid mycorrhizal fungi with the ability to enhance germination in orchids.