摘要
植物根际微生物在植物修复重金属污染土壤时分泌的激素、铁载体、ACC脱氨酶、黄酮类化合物和酚酸类等有机物具有增强植物生长、促进植物根际对重金属吸收、转运和积累的作用,同时促进适应相应根际环境的功能微生物群落的建立.文章结合作者课题组的研究结果,概述根际微生物在植物修复重金属污染土壤过程中的作用,总结了根际细菌、真菌、古菌在植物修复中的作用,进一步分析了土壤污染类型、改良剂、根际植物的种类等对根际微生物活动的影响,对今后植物修复重金属污染土壤过程中与根际微生物作用相关的研究进行了展望.
Rhizosphere microbes play important roles in phytoremediation of heavy metal polluted soils. They can strengthen the growth of plants and promote absorption,transportation and accumulation of heavy metals in the rhizosphere by excreting plant growth hormone,siderophore,1-aminocyclopropane-1-carboxylate（ ACC） deaminase,flavonoids compounds,phenolic acids and other organic substances. These secretions could further produce functional microbial community which can adapt to the stressed rhizosphere environment. The roles of rhizosphere microbes in phytoremediation of heavy metal contaminated soils was reviewed. Based on the systematical summary on the functions of rhizospheric bacteria,fungi and archaea in phytoremediation,the influences by pollution type,ameliorant and rhizosphere plant species to rhizosphere microbial activities were reported. The perspectives of the future research on related issues were also discussed.
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2016年第2期1-12,共12页
Journal of South China Normal University(Natural Science Edition)
基金
国家自然科学基金项目(41403060
2012AA06A202)
关键词
重金属污染土壤
植物修复
根际微生物
微生物群落
heavy metal contaminated soil
phytoremediation
rhizosphere microbes
microbial community
