武汉工程大学学报2023，Vol.45Issue(6)：655-662,8.DOI:10.19843/j.cnki.CN42-1779/TQ.202305003
纳米银胁迫下土壤微生物磷脂脂肪酸的响应特征
Response Characteristics of Soil Microbial Phospholipid Fatty Acids Under Silver Nanoparticles Stress
摘要
Abstract
The influence of silver nanoparticles(AgNPs)on the microbial community structure in agricultural soil was investigated by assessing changes in the content of microbial biomarkers,namely phospholipid fatty acids(PLFAs),under different AgNPs mass fractions(0,10,100,1 000 mg·kg-1).The results reveal that both the total content of microbial PLFAs and the microbial PLFA diversity index significantly decrease with an increase in AgNPs mass fraction.The abundances of gram-positive bacterial marker fatty acids a15:0 and i16:0,fungal marker fatty acid 18:2 ω6c,as well as gram-negative bacterial marker fatty acids 16:1 ω7c and 18:1 ω7c,exhibit significant variations among different AgNPs treatment groups,indicating distinctive responses of different microbial groups to AgNPs.AgNPs significantly impact the content and community structure of soil microbial PLFAs,highlighting the need for a systematic assessment and scientific regulation of the ecological risks of AgNPs in agricultural soil.关键词
纳米银/土壤微生物/磷脂脂肪酸/胁迫/响应Key words
silver nanoparticles/soil microorganism/phospholipid fatty acid/stress/response分类
生物科学引用本文复制引用
宋宇迪,樊昊心,姚槐应..纳米银胁迫下土壤微生物磷脂脂肪酸的响应特征[J].武汉工程大学学报,2023,45(6):655-662,8.基金项目
武汉工程大学研究生教育创新基金(CX2021451) （CX2021451）
