Open AccessTrichoderma panacis sp. nov., an endophyte isolated from Panax notoginseng
Author(s) -
Shan-Yi Liu,
Ying Yu,
Tianyuan Zhang,
Mengyue Zhang,
Yixuan Zhang
Publication year - 2020
Publication title -
international journal of systematic and evolutionary microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 173
eISSN - 1466-5034
pISSN - 1466-5026
DOI - 10.1099/ijsem.0.004144
Subject(s) - biology , conidium , panax notoginseng , trichoderma , botany , endophyte , fungus , hypocreales , genus , ascomycota , gene , medicine , biochemistry , alternative medicine , pathology
An endophytic member of the genus Trichoderma was isolated from the root of a healthy 3-year-old Panax notoginseng in Yunnan province, PR China. The results of phylogenetic analyses based on a combined of ITS, tef 1 and rpb 2 indicated that this isolate was distinct from other species of the genus Trichoderma and closely related to Trichoderma songyi . It can be distinguished from T. songyi by its slower growth rates on PDA and colony morphology. The novel isolate formed conidia in thick white pustules scattered mostly at the margin. Its conidiophores tended to be regularly verticillium -like, little branched, sometimes substituted by phialides singly or in whorls. Conidia are smooth, mostly broadly subglobose to ellipsoidal. In combination with the genotypic and phenotypic characteristics, all data demonstrated that the fungus studied represented a unique and distinguishable novel species of the genus Trichoderma , for which the name Trichoderma panacis sp. nov. is proposed.