Comparative Symbiotic Effects of Mycorrhizal Fungal Strains from Different Hosts on Seed Germination and Seedling Growth in <i>Dendrobium officinale</i>.

ABSTRACT: Compatible fungal partners of orchids can significantly enhance seed germination and increase seedling establishment under both in vitro and in situ conditions. This study isolated 14 Tulasnella isolates from five-year-old potted plants of three D. officinale cultivars. Three phylogenetically representative strains (Dca122, Dca222, and Dca113) and two additional orchid mycorrhizal fungus (OMFs, ML01 and Pi) were selected to evaluate their effects on D. officinale seed germination and seedling development in vitro, and subsequent seedling growth under greenhouse conditions. All five OMFs supported seed germination and seedling development in vitro. Notably, Dca113, Pi, and ML01 exhibited the most pronounced effects, producing protocorms 3-4 times larger in volume than c

SUBMITTER: He JY 

PROVIDER: S-EPMC12564960 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature