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The effects of heavy metals on germination and seedling characteristics in two halophyte species in Mediterranean marshes
Marquez-Garcia, B.; Marquez, C.; Sanjose, I.; Nieva, F.; Rodriguez-Rubio, P.; Munoz-Rodriguez, A. (2013). The effects of heavy metals on germination and seedling characteristics in two halophyte species in Mediterranean marshes. Mar. Pollut. Bull. 70(1-2): 119-124. dx.doi.org/10.1016/j.marpolbul.2013.02.019
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X, more
Peer reviewed article  

Available in Authors 

Author keywords
    Atriplex halimus; Chenopodiaceae; Heavy metals; Salicornia ramosissima;Salt marshes

Authors  Top 
  • Marquez-Garcia, B.
  • Marquez, C.
  • Sanjose, I.
  • Nieva, F.
  • Rodriguez-Rubio, P.
  • Munoz-Rodriguez, A.

Abstract
    The influence of different concentrations (10–2000 µM) of heavy metals (Cu, Mn, Ni, Zn) was analysed in Atriplex halimus and Salicornia ramosissima germination pattern and seedling size. They are two halophyte species that grow in the Estuary of Huelva (Southwest Iberian Peninsula, Spain), one of the most heavy metal-polluted environments in the world. All of the metals tested affected the final germination percentage in A. halimus and only Ni reduced germination in S. ramosissima. The germination rate was unaffected in both species. The study of seedling development shows that S. ramosissima, an intertidal annual species, has a higher tolerance of metals than A. halimus, a bush that inhabits the upper part of the marshes. Taking into account the metal concentrations in the estuary and the effects of these on the seedling development of the species analysed, we conclude that metals might limit plant colonisation in some parts of the marshes.

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