菲律宾蛤仔对三价和五价无机砷的富集转化规律
文献类型：期刊论文
| 作者 | 陈丽竹; 王丹; 曹瑞文; 王清 ; 赵建民; 祝艳霞; 吴惠丰
|
| 刊名 | 海洋通报
 |
| 出版日期 | 2017-06-15 |
| 卷号 | 36期号:3页码:326-332 |
| 关键词 | Ruditapes philippinarum arsenic bioaccumulation biotransformation 菲律宾蛤仔 砷 富集 甲基转化 |
| ISSN号 | 1001-6392 |
| DOI | Doi:10.11840/j.issn.1001-6392.2017.03.011 |
| 其他题名 | Bioaccumulation and biotransformation of inorganic arsenic in Ruditapes philippinarum |
| 产权排序 | (1) 中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室 ; (2) 中国科学院大学 ; (3) 宁波大学 |
| 文献子类 | Article |
| 英文摘要 | Arsenic (As) is a ubiquitous toxic metalloid, and its toxicity depends greatly on its chemical speciation. Marine mollusks are apt to bioaccumulation of high arsenic contents because of their living habits. In this study, the bioaccumulation and biotransformation of the clam Ruditapes philippinarum were investigated after waterborne exposure to arsenite (As (Ⅲ)) or arsenate (As (Ⅴ)) for 14 days. The results showed that arsenic uptake increased with increasing arsenic concentration in the seawater, while gills of R. philippinarum showed the limited ability to bioaccumulate inorganic arsenic from seawater, with no significant difference compared with control group following waterbone 10 mug/L As (Ⅲ) and As (Ⅴ) exposure for 14 days. The bioavailability of As (Ⅲ) was slightly higher than that of As (Ⅴ) to R. philippinarum, and arsenic was easier to be accumulated in digestive glands. The results demonstrated the As biotransformation in the clams included As (Ⅴ) reduction, As (Ⅲ) oxidation, and methylation. Arsenobetaine (AsB) and dimethylarsinic acid (DMA) was the major arsenic speciation in all treatments, while monomethylarsonic acid (MMA) contents decreased significantly after exposure, indicating that MMA can be quickly metabolized or converted into other arsenic speciation in the rate-limiting conversion reaction of inorganic arsenic. Inorganic arsenic in gills was mainly converted to DMA, but AsB in digestive glands, indicating the different transformation efficiency in different tissues. In summary, the results provided an important basis for elucidating the arsenic bioaccumulation and biotransformation mechanism in R. philippinarum and provided theoretical basis for shellfish breeding and food safety. |
| WOS关键词 | Environmental Sciences & Ecology |
| WOS研究方向 | Environmental Sciences & Ecology ; 环境科学与生态学 |
| 语种 | 中文 |
| CSCD记录号 | CSCD:6010872 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24266]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 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 海岸带生物资源高效利用研究与发展中心 |
| 作者单位 | 1.中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室; 2.中国科学院大学; 3.宁波大学 |
| 推荐引用方式 GB/T 7714 | 陈丽竹,王丹,曹瑞文,等. 菲律宾蛤仔对三价和五价无机砷的富集转化规律[J]. 海洋通报,2017,36(3):326-332. |
| APA | 陈丽竹.,王丹.,曹瑞文.,王清.,赵建民.,...&吴惠丰.(2017).菲律宾蛤仔对三价和五价无机砷的富集转化规律.海洋通报,36(3),326-332. |
| MLA | 陈丽竹,et al."菲律宾蛤仔对三价和五价无机砷的富集转化规律".海洋通报 36.3(2017):326-332. |
入库方式： OAI收割
来源：烟台海岸带研究所
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