Phosphorus and cadmium interactions in Kandelia obovata (S L) in relation to cadmium tolerance

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	Phosphorus and cadmium interactions in Kandelia obovata (S L) in relation to cadmium tolerance
	Du, Jingna ; Yan, Chongling ; Li, Zhaodeng ; Yan ZL(严重玲)
刊名	http://dx.doi.org/10.1007/s11356-013-1910-8
	2014
关键词	WEIGHT ORGANIC-ACIDS MAIZE ROOT-TIPS CONTAMINATED SOILS C-13-NMR SPECTROSCOPY NUTRIENT ENRICHMENT METAL ACCUMULATION MANGROVE FOREST HEAVY-METALS TRACE-METALS CITRIC-ACID
英文摘要	National Important Scientific Research Program of China [2013CB956504]; National Natural Science Foundation of China [31170471, 30970527]; This study focused on the cadmium (Cd) tolerance of mangroves with application of phosphate (P) in order to explore whether exogenous P can alleviate Cd stress on these intertidal species. Kandelia obovata (S. L.) seedlings were cultivated in rhizoboxes under different levels of Cd and P concentrations. The speciation distributions of Cd in the rhizosphere and non-rhizosphere sediments were examined by sequential extraction procedures; organic acid in plant tissues and soil solution was measured by high-performance liquid chromatography; Cd and P accumulation in the plants was also determined. Results showed that considerable differences existed in Cd speciation distributions between rhizosphere and non-rhizosphere sediments. Root activity influenced the dynamics of Cd, P application increased the organic acid content in root tissues, P also increased Cd accumulation in roots whilst lowering Cd translocation from root to the above-ground tissues, and a significant positive correlation was found between Cd and P in roots (r = 0.905). It is postulated that Cd detoxification of K. obovata (S. L.) is associated with higher Cd immobilization in the presence of higher P and organic acid contents in root tissue.
语种	英语
出版者	SPRINGER HEIDELBERG
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/90859]
专题	生命科学－已发表论文
推荐引用方式 GB/T 7714	Du, Jingna,Yan, Chongling,Li, Zhaodeng,et al. Phosphorus and cadmium interactions in Kandelia obovata (S L) in relation to cadmium tolerance[J]. http://dx.doi.org/10.1007/s11356-013-1910-8,2014.
APA	Du, Jingna,Yan, Chongling,Li, Zhaodeng,&严重玲.(2014).Phosphorus and cadmium interactions in Kandelia obovata (S L) in relation to cadmium tolerance.http://dx.doi.org/10.1007/s11356-013-1910-8.
MLA	Du, Jingna,et al."Phosphorus and cadmium interactions in Kandelia obovata (S L) in relation to cadmium tolerance".http://dx.doi.org/10.1007/s11356-013-1910-8 (2014).