Details

Autor(en) / Beteiligte

• Yang, Wei-dong
• Wang, Yu-yan
• Zhao, Feng-liang
• Ding, Zhe-li
• Zhang, Xin-cheng
• Zhu, Zhi-qiang
• Yang, Xiao-e

Titel

Variation in copper and zinc tolerance and accumulation in 12 willow clones： implications for phytoextraction

Ist Teil von

• Journal of Zhejiang University. B. Science, 2014-09, Vol.15 (9), p.788-800

Ort / Verlag

Hangzhou: Zhejiang University Press

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• Willows （Salix spp.） have shown high potential for the phytoextraction of heavy metals. This study com- pares variations in copper （Cu） and zinc （Zn） tolerance and accumulation potential among 12 willow clones grown in a nutrient solution treated with 50 pmol/L of Cu or Zn, respectively. The results showed differences in the tolerance and accumulation of Cu and Zn with respect to different species/clones. The biomass variation among clones in response to Cu or Zn exposure ranged from the stimulation of growth to inhibition, and all of the clones tested showed higher tolerance to Cu than to Zn. The clones exhibited less variation in Cu accumulation but larger variation in Zn accumulation. Based on translocation factors, it was found that most of the Cu was retained in the roots and that Zn was more mobile than Cu for all clones. It is concluded that most willow clones are good accumulators of Zn and Cu.