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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. (2009). Mixed heavy metals tolerance and radial oxygen loss in mangrove seedlings. Mar. Pollut. Bull. 58(12): 1843-1849. https://dx.doi.org/10.1016/j.marpolbul.2009.07.023
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Anatomical structures > Body organs > Plant organs > Roots
    Chemical elements > Metals > Heavy metals > Lead
    Chemical elements > Metals > Heavy metals > Zinc
    Chemical elements > Metals > Transition elements > Heavy metals > Copper
    Mangroves
    Pollution effects
    Properties > Biological properties > Tolerance > Pollution tolerance
    Seedlings
    Spatial distribution
    Aegiceras corniculatum (L.) Blanco [WoRMS]; Avicennia marina (Forssk.) Vierh. [WoRMS]; Bruguiera gymnorhiza (L.) Lam. [WoRMS]
    Marien/Kust
Author keywords
    Aegiceras corniculatum; Avicennia marina; Bruguiera gymnorrhiza; Copper;Lead; Zinc
Auteurs  Top 
  • Liu, Y.
  • Tam, N.F.-Y.
  • Yang, J.X.
  • Pi, N.
  • Wong, M.H.
  • Ye, Z.H.
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.
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