中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mixture of Pb, Zn and Cu on root permeability and radial oxygen loss in the mangroveBruguiera gymnorrhiza

文献类型:期刊论文

作者Cheng, Hao; Wang, You-Shao; Li, Chang-Da; Ye, Zhi-Hong; Muhammad, Shafi; Wu, Mei-Lin; Sun, Fun-Lin
刊名ECOTOXICOLOGY
出版日期2020
卷号29期号:6页码:691
ISSN号0963-9292
关键词Mangroves Heavy metals Radial oxygen loss Root anatomy Lignification
英文摘要A short term pot trail was employed to evaluate the exposure of mixed heavy metals (Cu, Pb and Zn) on growth, radial oxygen loss (ROL) and root anatomy inBruguiera gymnorrhiza.The possible function ofBgC4H, a cytochrome P450 gene, on root lignification was also discussed. The exposures of mixed Cu, Pb and Zn directly reduce O(2)leakage at root surface. The reduced ROL inhibited by heavy metals was mainly ascribed by the changes in root anatomical features, such as decreased root porosity together with increased lignification within the exodermis.BgC4Hwas found to be up-regulated after 0.5-day metal exposure, and remained higher transcript levels within 3-day metal exposure when compared to control roots. Besides, the inhibited photosynthesis may also result in less oxygen can be transported to the underground roots. In summary, the mangroveB. gymnorrhizaappeared to react to external mixed metal contaminants by developing a lignified and impermeable exodermis, and such a root barrier induced by mixed Cu, Pb and Zn appeared to be an adaptive response to block metal ions enters into the roots.
源URL[http://ir.scsio.ac.cn/handle/344004/18289]  
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.Chinese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, Guangzhou 510301, Peoples R China
2.[Cheng, Hao
3.Wang, You-Shao
4.Muhammad, Shafi
5.Wu, Mei-Lin
6.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Peoples R China
7.[Cheng, Hao
8.Wang, You-Shao
9.Chinese Acad Sci, Daya Bay Marine Biol Res Stn, Shenzhen 518121, Peoples R China
10.[Cheng, Hao
推荐引用方式
GB/T 7714
Cheng, Hao,Wang, You-Shao,Li, Chang-Da,et al. Mixture of Pb, Zn and Cu on root permeability and radial oxygen loss in the mangroveBruguiera gymnorrhiza[J]. ECOTOXICOLOGY,2020,29(6):691, 697.
APA Cheng, Hao.,Wang, You-Shao.,Li, Chang-Da.,Ye, Zhi-Hong.,Muhammad, Shafi.,...&Sun, Fun-Lin.(2020).Mixture of Pb, Zn and Cu on root permeability and radial oxygen loss in the mangroveBruguiera gymnorrhiza.ECOTOXICOLOGY,29(6),691.
MLA Cheng, Hao,et al."Mixture of Pb, Zn and Cu on root permeability and radial oxygen loss in the mangroveBruguiera gymnorrhiza".ECOTOXICOLOGY 29.6(2020):691.

入库方式: OAI收割

来源:南海海洋研究所

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