广西师范大学学报（自然科学版） ›› 2013, Vol. 31 ›› Issue (2): 118-122.

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丛枝菌根真菌对桉树吸收Cu和Zn的作用研究

黄佳玉, 谈宇, 廖妤婕, 王维生, 王英辉   

  1. 广西大学环境学院,广西南宁530004
  • 收稿日期:2012-03-12 出版日期:2013-06-20 发布日期:2018-11-26
  • 通讯作者: 王维生(1975—),男,湖北武汉人,广西大学教授,博士,硕导。E-mail:wswang20@yahoo.com.cn
  • 基金资助:
    国家自然科学基金资助项目(41263007);广西自然科学基金资助项目(2012GXNSFDA053023,桂科自0991032)

Effects of Arbuscular Mycorrhizal Fungi on the Uptake of Copper and Zinc by Eucalyptus

HUANG Jia-yu, TAN Yu, LIAO Yu-jie, WANG Wei-sheng, WANG Ying-hui   

  1. School of the Environment,Guangxi University,Nanning Guangxi 530004,China
  • Received:2012-03-12 Online:2013-06-20 Published:2018-11-26

摘要： 通过盆栽实验研究摩西球囊霉(G.m)对桉树幼苗吸收Cu和Zn的作用,及其对Cu/Zn交互作用的影响。桉树苗栽培在含Cu(0、10、25、50 mg·kg-1)或/和Zn(0、50、100、200、300、500 mg·kg-1)的模拟污染土壤中,接种G.m,8周后收获,分别测定桉树苗的生物量、菌根侵染率及Cu和Zn含量。结果表明:①根部G.m的侵染率为20%～35%,外加Cu和Zn对侵染率无显著影响。②接种G.m可使桉树苗生物量增加1～3倍;显著性降低桉树苗中Cu和Zn的含量(P＜0.05),分别减少5%～40%和50%～80%。③未接种G.m时,土壤中外加的Zn使桉树苗中Cu的含量显著减少(P＜0.05),而Cu对桉树苗中Zn的含量无显著影响。接种G.m后,土壤中外加的Zn亦使桉树苗中Cu的含量显著减少(P＜0.05),而Cu也能显著降低桉树苗中Zn的含量(P＜0.05)。

关键词: 丛枝菌根真菌, 桉树, Cu, Zn, 交互作用

Abstract: The effects of eucalyptus inoculated with Glomus mosseae (G.m) on the uptake of Cu and Zn and the interaction between Cu and Zn were investigated in pot experiments.Eucalyptus was cultured in artificial soil contaminated with increasing Cu (0,10,25,50 mg·kg-1) and/or Zn (0,50,100,200,300,500 mg·kg-1).Eucalyptus was harvested after inoculated for 8 weeks.The data about the biomass of eucalyptus,the colonization rate of root,Cu and Zn concentration in eucalyptus were determined.The results indicated that root colonization rates ranged from 20%～35%,and Cu or Zn concentration in soil had no significant effect on the colonization rates.The biomass of shoot increased1～3 times after inoculating G.m.The concentrations of Cu and Zn in shoot decreased significantly by about 5%～40% and 50%～80%,respectivelyafter inoculating G.m (P＜0.05).Without G.m,the concentration of Cu in shoot decreased with the increase of Zn in soil significantly (P＜0.05).However,increasing Cu in soil had few effect on the concentration of Zn in shoot.With inoculating G.m,the concentration of Cu in shoot decreased with the increase ofZn in soil significantly (P＜0.05),and the concentration of Zn in shoot decreased by increasing Cu in soil significantly (P＜0.05).

Key words: AMF, Eucalyptus, Cu, Zn, interaction

中图分类号: 

  • S718.8
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