Mycorrhizal fungus BJ1, a new species of <i>Tulasnella</i> sp.: its biological characteristics and promoting effect on seed germination of <i>Bletilla striata</i>.

ABSTRACT: Mycorrhizal fungi have been shown to promote seed germination and seedling growth in Orchidaceae plants. In the present study, a mycorrhizal fungus designated as BJ1 was isolated from the roots of Bletilla striata (Thunb.) Reiehb.f. Fluorescence staining and morphological analysis revealed that this fungus exhibited characteristics highly similar to those of Tulasnella. Subsequently, the strain was confirmed as a new strain of Tulasnella through sequencing and phylogenetic analysis of four loci: the internal transcribed spacer region ITS1-ITS4 (ITS), ATP synthase (C14436), glutamate synthase (C4102), and ATP deconjugase (C3304). Additionally, we investigated the in vitro biological activity of strain BJ1 and its effects on germination and growth of B. striata

SUBMITTER: Li Z 

PROVIDER: S-EPMC11885232 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature