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Influence of N deficiency and salinity on metal (Pb, Zn and Cu) accumulation and tolerance by Rhizophora stylosa in relation to root anatomy and permeability
Cheng, H; Wang, YS; Ye, ZH; Chen, DT; Wang, YT; Peng, YL; Wang, LY; yswang@scsio.ac.cn
2012
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume164Pages:110-117
AbstractEffects of N deficiency and salinity on root anatomy, permeability and metal (Pb, Zn and Cu) translocation and tolerance were investigated using mangrove seedlings of Rhizophora stylosa. The results showed that salt could directly reduce radial oxygen loss (ROL) by stimulation of lignification within exodermis. N deficiency, oppositely, would reduce lignification. Such an alteration in root permeability may also influence metal tolerance by plants. The data indicated that a moderate salinity could stimulate a lignified exodermis that delayed the entry of metals into the roots and thereby contributed to a higher metal tolerance, while N deficiency would aggravate metal toxicity. The results from sand pot trail further confirmed this issue. This study provides a barrier property of the exodermis in dealing with environments. The plasticity of root anatomy is likely an adaptive strategy to regulate the fluxes of gases, nutrients and toxins at root soil interface. (C) 2012 Elsevier Ltd. All rights reserved.
Department[Cheng, Hao; Wang, You -Shao; Wang, Yu-Tu; Peng, Ya-Lan; Wang, Li-Ying] Chinese Acad Sci, S China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Cheng, Hao; Wang, You -Shao; Wang, Yu-Tu] Chinese Acad Sci, Marine Biol Res Stn Daya Bay, Shenzhen 518121, Peoples R China; [Ye, Zhi-Hong; Chen, Dan-Ting] Sun Yat Sen Univ, State Key Lab Biocontrol, Guangzhou 510006, Guangdong, Peoples R China; [Ye, Zhi-Hong; Chen, Dan-Ting] Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510006, Guangdong, Peoples R China
KeywordMangrove Plants Rhizophora Stylosa n Deficiency Salt Metal Accumulation/tolerance
Subject AreaEnvironmental Sciences
Language英语
Funding ProjectLTO
WOS IDWOS:000302971400017
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10179
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authoryswang@scsio.ac.cn
Recommended Citation
GB/T 7714
Cheng, H,Wang, YS,Ye, ZH,et al. Influence of N deficiency and salinity on metal (Pb, Zn and Cu) accumulation and tolerance by Rhizophora stylosa in relation to root anatomy and permeability[J]. ENVIRONMENTAL POLLUTION,2012,164:110-117.
APA Cheng, H.,Wang, YS.,Ye, ZH.,Chen, DT.,Wang, YT.,...&yswang@scsio.ac.cn.(2012).Influence of N deficiency and salinity on metal (Pb, Zn and Cu) accumulation and tolerance by Rhizophora stylosa in relation to root anatomy and permeability.ENVIRONMENTAL POLLUTION,164,110-117.
MLA Cheng, H,et al."Influence of N deficiency and salinity on metal (Pb, Zn and Cu) accumulation and tolerance by Rhizophora stylosa in relation to root anatomy and permeability".ENVIRONMENTAL POLLUTION 164(2012):110-117.
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