The community composition of arbuscular mycorrhizal fungi in the rhizosphere of Bauhinia faberi var.microphylla in the dry valley of Minjiang River
Arbuscular mycorrhizal fungi (AMF) can effectively improve plant fitness and soil quality,thus they play an essential role in soil remediation and revegetation in these degraded ecosystems.Using cloning and sequencing methods,we examined the AM fungal assemblages in the rhizosphere of Bauhinia faberi var.microphylla which is a dominant shrub species in the dry valley of Minjiang River of Sichuan Province for facilitating theoretical studies on preservation and recovery of native vegetation.We detected 53 AMF operational taxonomic units (OTUs) which were assigned to 7 families and 10 genera of Glomeromycota based on phylogenetic analysis of sequences.Glomus,Diversispora and Funneliformis were dominant genera in the rhizosphere of the plant.Glomus taxa were most abundant,accounting for more than 50％ of the total OTUs and sequences,respectively.Rhizophagus and Archaeospora were relatively rare,and the rest were common genera.Our results reveal that there is a high level of AMF diversity in the rhizosphere of the target plant species,and these abundant AMF taxa may play an important ecological role in this arid region.
NETL
NSTL
万方数据
维普
