Mixed heavy metals tolerance and radial oxygen loss in mangrove seedlings

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Z. H. Ye

Detail(s)

Original languageEnglish
Pages (from-to)1843-1849
Journal / PublicationMarine Pollution Bulletin
Volume58
Issue number12
Publication statusPublished - 2009

Abstract

The effects of a mixture of heavy metals (Pb, Zn and Cu) on growth, radial oxygen loss (ROL) and the spatial pattern of ROL were investigated in mangrove seedlings of three species: Aegiceras corniculatum, Avicennia marina and Bruguiera gymnorrhiza. Heavy metals inhibited the growth of seedlings and led to decreased ROL and changes in the "tight" barrier spatial pattern of ROL. There was a significant positive correlation between the amount of ROL from the roots of seedlings and metal tolerance. The species with the highest ROL amount, B. gymnorrhiza, were also the most tolerant to heavy metals. The "tight" barrier spatial ROL pattern was also related to metal tolerance in the seedlings. Therefore, we conclude that both ROL amount and "tight" barrier spatial ROL pattern in the roots of the mangrove seedlings play an important role in resistance to heavy metal toxicity. © 2009 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Aegiceras corniculatum, Avicennia marina, Bruguiera gymnorrhiza, Copper, Lead, Zinc

Citation Format(s)

Mixed heavy metals tolerance and radial oxygen loss in mangrove seedlings. / Liu, Y.; Tam, N. F Y; Yang, J. X.; Pi, N.; Wong, M. H.; Ye, Z. H.

In: Marine Pollution Bulletin, Vol. 58, No. 12, 2009, p. 1843-1849.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review