Plant growth-promoting rhizobacteria enhance the growth and Cd uptake of Sedum plumbizincicola in a Cd-contaminated soil
文献类型：期刊论文
| 作者 | Liu, Wuxing1; Wang, Qingling1; Wang, Beibei1,2; Hou, Jinyu1,2; Luo, Yongming1,3 ; Tang, Caixian4; Franks, Ashley E.5
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| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
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| 出版日期 | 2015-05-01 |
| 卷号 | 15期号:5页码:1191-1199 |
| 关键词 | Cd contamination Hyperaccumulator Microbial community PGPR Phytoextraction Sedum |
| ISSN号 | 1439-0108 |
| 产权排序 | [Liu, Wuxing; Wang, Qingling; Wang, Beibei; Hou, Jinyu; Luo, Yongming] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Wang, Beibei; Hou, Jinyu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Luo, Yongming] Chinese Acad Sci, Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Tang, Caixian] La Trobe Univ, Ctr AgriBiosci, Bundoora, Vic 3086, Australia; [Franks, Ashley E.] La Trobe Univ, Dept Microbiol, Bundoora, Vic 3086, Australia |
| 通讯作者 | Liu, WX (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China. liuwuxin@issas.ac.cn |
| 中文摘要 | This study aimed to isolate plant growth-promoting rhizobacteria (PGPR) that exhibit heavy metal resistance to examine their influence on Cd uptake and soil microbial community structure during phytoremediation. Heavy metal-tolerant PGPR were isolated from the roots of possible hyperaccumulators using plates with 1-aminocyclopropane-1-carboxylate (ACC) as sole nitrogen source. Minimal inhibitory concentrations (MICs) of each isolate were determined by the plate dilution method. The impacts of isolated PGPR on the growth and Cd accumulation of Sedium plumbizincicola were conducted in a pot experiment. In addition, the effect of PGPR inoculation on the microbial community during phytoextraction by S. plumbizincicola was studied by 454 pyrosequencing. A total of nine Cd-resistant strains were isolated from the roots of Cd accumulators, and their plant growth-promoting activities were characterized. Isolates were able to produce indole-3-acetic acid (IAA) (28-133 mg L-1) and solubilize phosphate (65-148 mg L-1). In a pot experiment, the inoculation of isolates NSX2 and LCR1 significantly enhanced the growth of and uptake of Cd by the Cd hyperaccumulator S. plumbizincicola. 454 pyrosequencing revealed that the inoculation of the PGPR lead to a decrease in microbial community diversity in the rhizopshere during phytoextraction. Specifically, indigenous heavy metal-tolerant PGPR such as Actinospica, Bradyrhizobium, Rhizobium, Mesorhizobium, and Mycobacterium were selectively enriched in the treatments in which PGPR were added. It is suggested that a unique constitution of microbial communities in inoculated treatments plays a key role in enhancing Cd phytoremediation. Inoculation of strains Rhodococcus erythropolis NSX2 and Cedecea davisae LCR1 could promote S. plumbizincicola growth and enhance the remediation efficiency. The introduced PGPR could also affect the indigenous microbial community structure and the diversity in Cd-contaminated soil during phytoremediation. |
| 英文摘要 | This study aimed to isolate plant growth-promoting rhizobacteria (PGPR) that exhibit heavy metal resistance to examine their influence on Cd uptake and soil microbial community structure during phytoremediation. |
| 学科主题 | Geosciences, Multidisciplinary; Soil Science |
| 研究领域[WOS] | Geology ; Agriculture |
| 关键词[WOS] | MICROBIAL COMMUNITY STRUCTURE ; METAL ACCUMULATION ; BACTERIA ; PHYTOREMEDIATION ; L. ; PHYTOEXTRACTION ; INOCULATION ; RESISTANCE ; DEAMINASE ; ROOTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000352977800016 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/8625]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Coastal Zone Res, Yantai 264003, Peoples R China 4.La Trobe Univ, Ctr AgriBiosci, Bundoora, Vic 3086, Australia 5.La Trobe Univ, Dept Microbiol, Bundoora, Vic 3086, Australia |
| 推荐引用方式 GB/T 7714 | Liu, Wuxing,Wang, Qingling,Wang, Beibei,et al. Plant growth-promoting rhizobacteria enhance the growth and Cd uptake of Sedum plumbizincicola in a Cd-contaminated soil[J]. JOURNAL OF SOILS AND SEDIMENTS,2015,15(5):1191-1199. |
| APA | Liu, Wuxing.,Wang, Qingling.,Wang, Beibei.,Hou, Jinyu.,Luo, Yongming.,...&Franks, Ashley E..(2015).Plant growth-promoting rhizobacteria enhance the growth and Cd uptake of Sedum plumbizincicola in a Cd-contaminated soil.JOURNAL OF SOILS AND SEDIMENTS,15(5),1191-1199. |
| MLA | Liu, Wuxing,et al."Plant growth-promoting rhizobacteria enhance the growth and Cd uptake of Sedum plumbizincicola in a Cd-contaminated soil".JOURNAL OF SOILS AND SEDIMENTS 15.5(2015):1191-1199. |
入库方式： OAI收割
来源：烟台海岸带研究所
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