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	Increase of multi-metal tolerance of three leguminous plants by arbuscular mycorrhizal fungi colonization
	Lin, Ai-Jun; Zhang, Xu-Hong; Wong, Ming-Hung; Ye, Zhi-Hong; Lou, Lai-Qing; Wang, You-Shan; Zhu, Yong-Guan
	2007
会议名称	3rd International Conference on Environmental Enhancement and Sustainable Development
会议日期	AUG 04-08, 2006
会议地点	Hohhot, PEOPLES R CHINA
关键词	Sesbania Medicago sativa Glomus mosseae A. caulinodans heavy metals
英文摘要	A greenhouse pot experiment was conducted to investigate the effects of the colonization of arbuscular mycorrhizal fungus (AMF) Glomus mosseae on the growth and metal uptake of three leguminous plants (Sesbania rostrata, Sesbania cannabina, Medicago sativa) grown in multi-metal contaminated soil. AMF colonization increased the growth of the legumes, indicating that AMF colonization increased the plant's resistance to heavy metals. It also significantly stimulated the formation of root nodules and increased the N and P uptake of all of the tested leguminous plants, which might be one of the tolerance mechanisms conferred by AMF. Compared with the control, colonization by G. mosseae decreased the concentration of metals, such as Cu, in the shoots of the three legumes, indicating that the decreased heavy metals uptake and growth dilution were induced by AMF treatment, thereby reducing the heavy metal toxicity to the plants. The root/shoot ratios of Cu in the three legumes and Zn in M. sativa were significantly increased (P < 0.05) with AMF colonization, indicating that heavy metals were immobilized by the mycorrhiza and the heavy metal translocations to the shoot were decreased.
ISSN号	0269-4042
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24717]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Lin, Ai-Jun,Zhang, Xu-Hong,Wong, Ming-Hung,et al. Increase of multi-metal tolerance of three leguminous plants by arbuscular mycorrhizal fungi colonization[C]. 见:3rd International Conference on Environmental Enhancement and Sustainable Development. Hohhot, PEOPLES R CHINA. AUG 04-08, 2006.

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