不同苎麻品种根际微生物多样性群落结构分析

Microbial Community Structures and Diversities in Different Ramie Varieties Rhizosphere Soils

根际微生物数量巨大且种类繁多,为了解苎麻根系微生物的群落结构特征,研究采用高通量测序方法,对不同品种5龄麻的根际土壤进行研究。结果表明:苎麻根际细菌群落归属于24门,52纲,125目,213科,329属,569种,其中变形菌门、酸杆菌门、绿弯菌门、拟杆菌门和放线菌门为优势门,约占细菌总数的88.92%~97.45%;真菌群落归属于43门,67纲,87目,102科,120属,174种,其中子囊菌门、接合菌门和担子菌门为优势门,约占真菌总数的65.59%~81.55%。研究初步探讨苎麻根际微生物多样性的特点,旨在为进一步探索根系分泌物介导下苎麻-土壤-微生物的互作关系提供理论依据。

The number of rhizosphere microorganisms and species is huge.In order to understand the community structure characteristics of ramie root microorganisms, the high-throughput sequencing method was used to study the rhizosphere soil of different varieties of 5th instar. The ramie rhizosphere bacteria belong to 24 phylum, 52 classes, 125 orders, 213 families, 329 genera and 569 species. The advantaged bacteria were Proteobacteria , Acidobacteria , Chloroflexi , Bacteroidetes and Actinobacteria , they accounted for 88.92%~97.45% of total number of bacteria. The fungi belong to 43 phylum, 67 classes, 87 orders, 102 families, 120 genera sand 174 species. The advantaged fungi were Ascomycota , Zygomycota and Basidiomycota , they accounted for 65.59%~81.55% of total number of fungi. The characteristics of rhizosphere microbial diversity in ramie were studied to provide some references for the research in ramie-soil-microbe interactions mediated by root exudates.