Rhizobium Inoculation Enhances the Resistance of Alfalfa and Microbial Characteristics in Copper-Contaminated Soil
文献类型：期刊论文
| 作者 | Duan, Chengjiao4,5; Mei, Yuxia6; Wang, Qiang7; Wang, Yuhan7; Li, Qi1; Hong, Maojun3; Hu, Sheng3; Li, Shiqing4; Fang, Linchuan2,4 |
| 刊名 | FRONTIERS IN MICROBIOLOGY
 |
| 出版日期 | 2022-01-12 |
| 卷号 | 12页码:13 |
| 关键词 | Cu-stress alfalfa plant resistance enzyme activity symbiosis system |
| DOI | 10.3389/fmicb.2021.781831 |
| 通讯作者 | Fang, Linchuan(flinc629@hotmail.com) |
| 英文摘要 | Some studies have reported the importance of rhizobium in mitigating heavy metal toxicity, however, the regulatory mechanism of the alfalfa-rhizobium symbiosis to resist copper (Cu) stress in the plant-soil system through biochemical reactions is still unclear. This study assessed the effects of rhizobium (Sinorhizobium meliloti CCNWSX0020) inoculation on the growth of alfalfa and soil microbial characteristics under Cu-stress. Further, we determined the regulatory mechanism of rhizobium inoculation to alleviate Cu-stress in alfalfa through plant-soil system. The results showed that rhizobium inoculation markedly alleviated Cu-induced growth inhibition in alfalfa by increasing the chlorophyll content, height, and biomass, in addition to nitrogen and phosphorus contents. Furthermore, rhizobium application alleviated Cu-induced phytotoxicity by increasing the antioxidant enzyme activities and soluble protein content in tissues, and inhibiting the lipid peroxidation levels (i.e., malondialdehyde content). In addition, rhizobium inoculation improved soil nutrient cycling, which increased soil enzyme activities (i.e., beta-glucosidase activity and alkaline phosphatase) and microbial biomass nitrogen. Both Pearson correlation coefficient analysis and partial least squares path modeling (PLS-PM) identified that the interactions between soil nutrient content, enzyme activity, microbial biomass, plant antioxidant enzymes, and oxidative damage could jointly regulate plant growth. This study provides comprehensive insights into the mechanism of action of the legume-rhizobium symbiotic system to mitigate Cu stress and provide an efficient strategy for phytoremediation of Cu-contaminated soils. |
| WOS关键词 | PLANT-GROWTH ; BIOCHEMICAL RESPONSES ; LONG-TERM ; TOLERANCE ; PHYTOREMEDIATION ; SYMBIOSIS ; CADMIUM ; RESTORATION ; COMMUNITY ; ENZYMES |
| 资助项目 | National Natural Science Foundation of China[41977031] ; National Natural Science Foundation of China[41571314] ; National Funds for Distinguished Young Scientists of Shaanxi Province[2020JC-31] |
| WOS研究方向 | Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000747930700001 |
| 出版者 | FRONTIERS MEDIA SA |
| 资助机构 | National Natural Science Foundation of China ; National Funds for Distinguished Young Scientists of Shaanxi Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/169996]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Fang, Linchuan |
| 作者单位 | 1.Cent China Normal Univ, Coll Urban & Environm Sci, Wuhan, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China 3.Northwest A&F Univ, Coll Agron, Yangling, Shaanxi, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China 6.Huazhong Agr Univ, Coll Life Sci & Technol, State Key Lab Agr Microbiol, Wuhan, Peoples R China 7.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Chengjiao,Mei, Yuxia,Wang, Qiang,et al. Rhizobium Inoculation Enhances the Resistance of Alfalfa and Microbial Characteristics in Copper-Contaminated Soil[J]. FRONTIERS IN MICROBIOLOGY,2022,12:13. |
| APA | Duan, Chengjiao.,Mei, Yuxia.,Wang, Qiang.,Wang, Yuhan.,Li, Qi.,...&Fang, Linchuan.(2022).Rhizobium Inoculation Enhances the Resistance of Alfalfa and Microbial Characteristics in Copper-Contaminated Soil.FRONTIERS IN MICROBIOLOGY,12,13. |
| MLA | Duan, Chengjiao,et al."Rhizobium Inoculation Enhances the Resistance of Alfalfa and Microbial Characteristics in Copper-Contaminated Soil".FRONTIERS IN MICROBIOLOGY 12(2022):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。