Biomass, activity and structure of rhizosphere soil microbial community under different metallophytes in a mining site
Biomass, activity and structure of rhizosphere soil microbial community under different metallophytes in a mining site
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某矿区不同金属植物根际土壤微生物群落生物量、活性及结构
DOI：
10.1007/s11104-017-3546-9
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Xing Shihe
中科院分区：
文献类型：
--
作者：
Yang Wenhao;Li Pei;Christopher Rensing;Ni Wuzhong;Xing Shihe
背景和目的在植物修复过程中，微生物特性常被用来评估土壤健康的恢复。方法采用田间调查的方法，研究了在Cd、Zn、Pb重污染土壤上自然生长的东南景天（Sedum alfredii）、湖南悬钩子（Rubus hunanensis）、金钱草（Lysimachia christinae）和风轮菜（Clinopodium gracile）4种金属植物根际微生物的特性。微生物生物量碳，基础呼吸，酶活性和磷脂脂肪酸进行了分析，研究微生物群落功能和composition.ResultsThe总微生物生物量，细菌，放线菌，真菌和原生动物PLFAs，基础呼吸和酶活性的金属植物根际显着高于散装土壤。此外，最大的增加被发现在根际的超积累。alfredii。根际微生物区系组成。alfredii与其它3种植物差异显著。结果表明，金属含量、活性碳和pH值等土壤理化性质是导致土壤微生物群落生物量、活性和结构变化的主要原因。
Background and aimsMicrobial properties are often used to assess the recovery of soil health during phytoremediation. A field survey was conducted to test the effects of different plant metallophytes (excluder and hyperaccumulator) on soil microbial characteristics.MethodsMicrobial properties in the rhizosphere of four metallophytes (Sedum alfredii,Rubus hunanensis, Lysimachia christinaeandClinopodium gracile) growing naturally on highly Cd-, Zn- and Pb-contaminated soils were investigated. Microbial biomass carbon, basal respiration, enzyme activities and phospholipid fatty acids were analyzed to study microbial community function and composition.ResultsThe total microbial biomass, bacterial, actinomycete, fungal, and protozoan PLFAs, basal respiration and enzyme activities in the rhizosphere of metallophytes were significantly higher than in bulk soil. Moreover, the largest increases were found in the rhizosphere of the hyperaccumulatorS. alfredii. The microbial community composition in the rhizosphere ofS. alfrediiwas significantly different from the other 3 plants. Redundancy analysis showed that soil physico-chemical properties such as metal concentrations, labile carbon and pH explained most of the variation in microbial community biomass, activity and structure.ConclusionsMetallophytes using different strategies to adapt to metal-rich soils induced different effects on soil microbial properties, which were also influenced by physico-chemical characteristics.
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影响因子：
5.2
作者：
Lanzén A;Epelde L;Garbisu C;Anza M;Martín-Sánchez I;Blanco F;Mijangos I
通讯作者：
Mijangos I
影响因子：
9.7
作者：
Li, Renyi;Doerfler, Ulrike;Munch, Jean Charles
通讯作者：
Munch, Jean Charles
DOI：
--
发表时间：
1989
期刊：
--
影响因子：
--
作者：
A. Baker;R. Brooks
通讯作者：
A. Baker;R. Brooks
影响因子：
4.8
作者：
Yang Wenhao;H. Hong;R. Mei;N. Wu-zhong
通讯作者：
Yang Wenhao;H. Hong;R. Mei;N. Wu-zhong
影响因子：
4.8
作者：
N. C. Prévost-Bouré;K. Soudani;C. Damesin;D. Berveiller;J. Lata;E. Dufrene
通讯作者：
N. C. Prévost-Bouré;K. Soudani;C. Damesin;D. Berveiller;J. Lata;E. Dufrene