Arsenic transformation and volatilization by arbuscular mycorrhizal symbiosis under axenic conditions
文献类型：期刊论文
| 作者 | Li, Jinglong ; Chen, Baodong; Zhang, Xin; Hao, Zhipeng; Zhang, Xuemeng; Zhu, Yongguan
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2021-07-05 |
| 卷号 | 413页码:- |
| ISSN号 | 0304-3894 |
| 关键词 | AM fungi As methylation Gaseous As As reduction In vitro |
| 英文摘要 | It is well known that arbuscular mycorrhizal (AM) fungi can enhance plant arsenic (As) resistance by influencing As uptake, translocation, and speciation; however, As transformation and volatilization by an entire plant inoculated with AM fungus remains uninvestigated. In the present study, AM symbiosis of Rhizophagus irregularis with unbroken Medicago sativa was successfully established in vitro. Afterwards, five concentrations of arsenate were applied to the culture media. The results showed that AM inoculation could methylate inorganic As into dimethylarsinic acid (DMA), dimethylarsine (DMAsH), and trimethylarsine (TMAs), which were detected in the plants, media, or air. Volatile As, accounting for a small proportion of total organic As, appeared under high arsenate exposure, accompanied by remarkable upregulation of root RiMT-11, an arsenite methyltransferase gene in R. irregularis. In addition, AM colonization significantly increased arsenite percentages in plant tissues and external media. Regardless of As species, AM inoculation tended to release the transformed As into the environment rather than transfer them to plant tissues. Our present study, for the first time, comprehensively verified As methylation, volatilization, and reduction by AM fungus associated with the entire plant under absolute axenic conditions and gained a deeper insight into As metabolism in AM symbionts. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45417]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jinglong,Chen, Baodong,Zhang, Xin,et al. Arsenic transformation and volatilization by arbuscular mycorrhizal symbiosis under axenic conditions[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,413:-. |
| APA | Li, Jinglong,Chen, Baodong,Zhang, Xin,Hao, Zhipeng,Zhang, Xuemeng,&Zhu, Yongguan.(2021).Arsenic transformation and volatilization by arbuscular mycorrhizal symbiosis under axenic conditions.JOURNAL OF HAZARDOUS MATERIALS,413,-. |
| MLA | Li, Jinglong,et al."Arsenic transformation and volatilization by arbuscular mycorrhizal symbiosis under axenic conditions".JOURNAL OF HAZARDOUS MATERIALS 413(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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。