云南师范大学学报（自然科学版）2025，Vol.45Issue(6)：44-52,9.DOI:10.7699/j.ynnu.ns-2025-070
西沙永兴岛海草床周边海域碳水化合物活性酶基因多样性研究
Study on Microbial Carbohydrate-active Enzyme Gene Diversity in the Water of Seagrass Bed in Yongxing Island
摘要
Abstract
To systematically understand the community characteristics of microorganisms and their car-bohydrate-active enzymes(CAZymes)in seagrass bed in Yongxing Island,metagenomic sequencing technology was used to analyze the composition and diversity of CAZyme genes in the seawater of the study area.The results showed that Alpha-proteobacteria,Gamma-proteobacteria,and Flavobacteriia were the dominant microbial groups in the seawater(account for about 65.5％of the total abundance)and the main contributors to CAZyme sequences(the overall contribution reaches 72.7％).CAZyme sequences exhibited distinct regional distribution patterns within the survey area,and significant differences were observed in the compositional characteristics of CAZyme sequences among different microbial communities.Most of the CAZyme sequences directly related to polysaccharide degradation were genes involved in the degradation of complex polysaccharides such as cellulose,hemicellulose,pectin,and peptidoglycan,this may be associated with the types of available substrates in the environ-ment.关键词
碳水化合物活性酶基因/微生物/宏基因组/海草床/永兴岛Key words
Carbohydrate-active enzymes genes/Microorganisms/Metagenome/Seagrass bed/Yongxing Island分类
海洋科学引用本文复制引用
张渊洲,王浩展,柏程华,贺仕昌,蔡伟,林楚彬,刘晓红..西沙永兴岛海草床周边海域碳水化合物活性酶基因多样性研究[J].云南师范大学学报（自然科学版）,2025,45(6):44-52,9.基金项目
国家重点研发计划资助项目(2022-20). （2022-20）
