Protection of dietary selenium-enriched seaweed Gracilaria lemaneiformis against cadmium toxicity to abalone Haliotis discus hannai
文献类型：期刊论文
| 作者 | Long, Aimin2,3; Luo, Hongtian; Wang, Qing; He, Zhili1; Wu, Yuhui; Yang, Yufeng |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2019 |
| 卷号 | 171页码:398 |
| 关键词 | Selenite Cadmium Mariculture Seaweeds Antagonism |
| ISSN号 | 0147-6513 |
| DOI | 10.1016/j.ecoenv.2018.12.105 |
| 英文摘要 | Seaweed Gracilaria lemaneiformis is the main dietary source of the abalone mariculture industry in China. In this study, we examined the protection of selenium (Se)-enriched G. lemaneiformis against cadmium (Cd) toxicity in the abalone, Haliotis discus hannai, using various indices including metal concentration (Se and Cd), growth rate, GPx enzymatic antioxidants, and metallothionein (MT) concentration over a period of 28 days of exposure. The growth rates and Se contents increased significantly in abalones fed with Se-enriched G. lemaneiformis, while the toxicity of Cd was reduced. Seven to 12 days Cd exposure to the Se-enriched G. lemaneiformis not only affected GPx activity but the MT levels fluctuated irregularly. MT concentrations increased after 3 days exposure and then gradually decreased to the control level after Day 7. There were statistically significant positive correlations between MT levels, GPx activity and Se concentrations, and negative relationships between MT levels, GPx activity and Cd levels in abalones. These findings suggest that Se-enriched Gracilaria protects abalone against Cd toxicity. The possible mechanism is the induction of MT with a concomitant increased capacity of GPx enzymatic antioxidants. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17739]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Jinan Univ, Inst Hydrobiol, Guangdong Higher Educ Inst, Key Lab Aquat Eutrophicat & Control Harmful Algal, Guangzhou, Guangdong, Peoples R China 2.Sun Yat Sen Univ, Environm Microbiome Res Ctr, Sch Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Ocean Environm LTO, Guangzhou, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Sch Earth Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long, Aimin,Luo, Hongtian,Wang, Qing,et al. Protection of dietary selenium-enriched seaweed Gracilaria lemaneiformis against cadmium toxicity to abalone Haliotis discus hannai[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2019,171:398, 405. |
| APA | Long, Aimin,Luo, Hongtian,Wang, Qing,He, Zhili,Wu, Yuhui,&Yang, Yufeng.(2019).Protection of dietary selenium-enriched seaweed Gracilaria lemaneiformis against cadmium toxicity to abalone Haliotis discus hannai.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,171,398. |
| MLA | Long, Aimin,et al."Protection of dietary selenium-enriched seaweed Gracilaria lemaneiformis against cadmium toxicity to abalone Haliotis discus hannai".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 171(2019):398. |
入库方式： OAI收割
来源：南海海洋研究所
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