干旱区生态环境知识资源中心(Arid): Old leaves accumulate more heavy metals than other parts of the desert shrub Calotropis procera at a traffic-polluted site as assessed by two analytical techniques

Arid

DOI	10.1080/15226514.2019.1619164
	Old leaves accumulate more heavy metals than other parts of the desert shrub Calotropis procera at a traffic-polluted site as assessed by two analytical techniques
	Almehdi, Ahmed 1; El-Keblawy, Ali 2; Shehadi, Ihsan 1; El-Naggar, Mohamed 1; Saadoun, Ismail 2; Mosa, Kareem A.2; Abhilash, Purushothaman C.3
通讯作者	El-Keblawy, Ali
来源期刊	INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
ISSN	1522-6514
EISSN	1549-7879
出版年	2019
卷号	21 期号:12 页码:1254-1262
英文摘要	Calotropis procera is a perennial big shrub that has the potential to accumulate high concentrations of heavy metals. Metal sequestration in old organs has been considered as a mechanism for plant survival in polluted soils. The aim of the present study was to assess the role of the old leaves as a sink for HMs accumulation in C. procera. Two instruments were used: atomic absorption spectroscopy (AAS) and X-ray fluorescence (XRF) microscopy. Soil and plant samples were collected from around one of the worst congested traffic areas in the United Arab Emirates (UAE). Samples from roots, stem, and green and old leaves were prepared and analyzed by both instruments. Calotropis procera was able to concentrate Fe, Mn, Sr, and Zn in the roots, but their translocation to stem and green leaves was low. Old leaves had greater ability to accumulate significantly higher concentrations of different metals, especially Fe and Sr, than other parts of the plants, indicating that C. procera uses these metabolically less-active leaves as sinks for heavy metals. Fe and Sr attained higher bioconcentration and accumulation values, compared to Zn and Mn. There were significant positive correlations between XRF and AAS for all elements in the different organs.
英文关键词	Atomic absorption spectroscopy (AAS) heavy metals phytoremediation traffic pollution XRF microscopy
类型	Article
语种	英语
国家	U Arab Emirates ; India
收录类别	SCI-E
WOS记录号	WOS:000471461500001
WOS关键词	CONTAMINATED SOILS ; PHYTOREMEDIATION ; PLANTS ; CADMIUM ; PB ; ZN ; L. ; BIOACCUMULATION ; EMISSIONS ; STRONTIUM
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216487
作者单位	1.Univ Sharjah, Coll Sci, Dept Chem, Sharjah, U Arab Emirates; 2.Univ Sharjah, Coll Sci, Dept Appl Biol, Sharjah 27272, U Arab Emirates; 3.Banaras Hindu Univ, Inst Environm & Sustainable Dev, Varanasi, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Almehdi, Ahmed,El-Keblawy, Ali,Shehadi, Ihsan,et al. Old leaves accumulate more heavy metals than other parts of the desert shrub Calotropis procera at a traffic-polluted site as assessed by two analytical techniques[J],2019,21(12):1254-1262.
APA	Almehdi, Ahmed.,El-Keblawy, Ali.,Shehadi, Ihsan.,El-Naggar, Mohamed.,Saadoun, Ismail.,...&Abhilash, Purushothaman C..(2019).Old leaves accumulate more heavy metals than other parts of the desert shrub Calotropis procera at a traffic-polluted site as assessed by two analytical techniques.INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,21(12),1254-1262.
MLA	Almehdi, Ahmed,et al."Old leaves accumulate more heavy metals than other parts of the desert shrub Calotropis procera at a traffic-polluted site as assessed by two analytical techniques".INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 21.12(2019):1254-1262.