Heavy metal toxicity in legume-microsymbiont system

被引：37
作者：
Athar, R
Ahmad, M [1 ]
机构：
[1] Aligarh Muslim Univ, Inst Agr, Aligarh 202002, Uttar Pradesh, India
[2] Aligarh Muslim Univ, Dept Biochem, Aligarh 202002, Uttar Pradesh, India
[3] Aligarh Muslim Univ, Fac Life Sci, Aligarh 202002, Uttar Pradesh, India
来源：
JOURNAL OF PLANT NUTRITION | 2002年 / 25卷 / 02期
关键词：
D O I：
10.1081/PLN-100108842
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A pot study was conducted to investigate the toxicity of cadmium (Cd), lead (Pb), copper (Cu), zinc (Zn), chromium (Cr), and nickel (Ni) added separately or in combination on chickpea (Cicer arietinum L.)-Rhizobium and greengram (Vigna radiata (L.) Wilczek)-Bradyrhizobium systems and metal uptake pattern by legume grains. Chickpea-Rhizobium system was comparatively more sensitive to heavy metal toxicity than greengram-Bradyrhizobium system in terms of decreased yield, low nitrogen content in plant tissues, and the protein content in grains. The phytotoxicity was apparently due to the susceptibility of the symbiotic apparatus against toxic doses of heavy metals. Metal uptake by grains seemed to be directly related to the concentration of heavy metals and was greater in the case of an individual metal added separately than in combination.
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页码：369 / 386
页数：18
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