Dpto Biología Ambiental y Salud Pública, Universidad de Huelva, Huelva 21071, Spain.
Mar Pollut Bull. 2013 May 15;70(1-2):119-24. doi: 10.1016/j.marpolbul.2013.02.019. Epub 2013 Mar 5.
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.
分析了不同浓度（10-2000 μM）重金属（Cu、Mn、Ni、Zn）对生长在西班牙西南部伊比利亚半岛胡尔韦尔河口（世界上污染最严重的重金属环境之一）的盐生植物滨藜和盐角草种子萌发模式和幼苗大小的影响。所有测试的金属都影响了滨藜的最终发芽率，而 Ni 则降低了盐角草的发芽率。两种物种的发芽率都没有受到影响。对幼苗发育的研究表明，盐角草是一种潮间带一年生物种，比滨藜具有更高的金属耐受性，滨藜是一种栖息在沼泽上部的灌木。考虑到河口的金属浓度以及这些金属对分析物种幼苗发育的影响，我们得出结论，金属可能会限制植物在沼泽的某些部分的定居。
