Bioaugmentation with Endophytic Bacterium E6S Homologous to Achromobacter piechaudii Enhances Metal Rhizoaccumulation in Host Sedum plumbizincicola
文献类型：期刊论文
| 作者 | Ma, Y; Zhang, C; Oliveira, RS; Freitas, H; Luo, YM
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| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2016-02-04 |
| 卷号 | 7 |
| ISSN号 | 1664-462X |
| 关键词 | endophytic bacterium rhizoaccumulation multi-metal contamination phytostabilization Sedum plumbizincicola |
| 通讯作者 | Ma, Y (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing, Jiangsu, Peoples R China. cathymaying@gmail.com |
| 产权排序 | [Ma, Ying] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing, Jiangsu, Peoples R China; [Ma, Ying; Oliveira, Rui S.; Freitas, Helena] Univ Coimbra, Dept Life Sci, Ctr Funct Ecol, Coimbra, Portugal; [Zhang, Chang] Chuzhou Univ, Chuzhou, Peoples R China; [Oliveira, Rui S.] Univ Catolica Portuguesa, Escola Super Biotecnol, Ctr Biotecnol & Quim Fina, Lab Associado, Oporto, Portugal; [Oliveira, Rui S.] Res Ctr Hlth & Environm, Sch Allied Hlth Sci, Polytech Inst Porto, Dept Environm Hlth, Vila Nova De Gaia, Portugal; [Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China |
| 英文摘要 | Application of hyperaccumulator-endophyte symbiotic systems is a potential approach to improve phytoremediation efficiency, since some beneficial endophytic bacteria are able to detoxify heavy metals, alter metal solubility in soil, and facilitate plant growth. The objective of this study was to isolate multi-metal resistant and plant beneficial endophytic bacteria and to evaluate their role in enhancing plant growth and metal accumulation/translocation. The metal resistant endophytic bacterial strain E6S was isolated from stems of the Zn/Cd hyperaccumulator plant Sedum plumbizincicola growing in metalliferous mine soils using Dworkin and Foster salts minimal agar medium with 1-aminocyclopropane-1-carboxylate (ACC) as the sole nitrogen source, and identified as homologous to Achromobacter piechaudii based on morphological and biochemical characteristics, partial 16S rDNA sequence and phylogenetic analysis. Strain E6S showed high level of resistance to various metals (Cd, Zn, and Pb). Besides utilizing ACC, strain E6S exhibited plant beneficial traits, such as solubilization of phosphate and production of indole-3-acetic acid. Inoculation with E6S significantly increased the bioavailability of Cd, Zn, and Pb in soil. In addition, bacterial cells bound considerable amounts of metal ions in the following order: Zn > Cd > Pb. Inoculation of E6S significantly stimulated plant biomass, uptake and bioaccumulation of Cd, Zn, and Pb. However, E6S greatly reduced the root to shoot translocation of Cd and Zn, indicating that bacterial inoculation assisted the host plant to uptake and store heavy metals in its root system. Inoculation with the endophytic bacterium E6S homologous to A. piechaudii can improve phytostabilization of metalliferous soils due to its effective ability to enhance in situ metal rhizoaccumulation in plants. |
| 研究领域[WOS] | Plant Sciences |
| 关键词[WOS] | PLANT-GROWTH ; MINE TAILINGS ; NI ; INOCULATION ; REMEDIATION ; ACID ; SOIL ; ACCUMULATION ; COMMUNITY ; BRASSICA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369223100001 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/10877]  |
| 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 2.Univ Coimbra, Dept Life Sci, Ctr Funct Ecol, Coimbra, Portugal 3.Chuzhou Univ 4.Univ Catolica Portuguesa, Escola Super Biotecnol, Ctr Biotecnol & Quim Fina, Lab Associado 5.Res Ctr Hlth & Environm, Sch Allied Hlth Sci 6.Chinese Acad Sci, Yantai Inst Coastal Zone Res |
| 推荐引用方式 GB/T 7714 | Ma, Y,Zhang, C,Oliveira, RS,et al. Bioaugmentation with Endophytic Bacterium E6S Homologous to Achromobacter piechaudii Enhances Metal Rhizoaccumulation in Host Sedum plumbizincicola[J]. FRONTIERS IN PLANT SCIENCE,2016,7. |
| APA | Ma, Y,Zhang, C,Oliveira, RS,Freitas, H,&Luo, YM.(2016).Bioaugmentation with Endophytic Bacterium E6S Homologous to Achromobacter piechaudii Enhances Metal Rhizoaccumulation in Host Sedum plumbizincicola.FRONTIERS IN PLANT SCIENCE,7. |
| MLA | Ma, Y,et al."Bioaugmentation with Endophytic Bacterium E6S Homologous to Achromobacter piechaudii Enhances Metal Rhizoaccumulation in Host Sedum plumbizincicola".FRONTIERS IN PLANT SCIENCE 7(2016). |
入库方式： OAI收割
来源：烟台海岸带研究所
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