Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes
Joint Authors
Shao, Hongbo
Long, Xiaohua
Ni, Ni
Liu, Zhaopu
Rengel, Zed
Jiang, Xin
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-14
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
In order to investigate the mechanisms in two Jerusalem artichoke (Helianthus tuberosus L.) genotypes that hyperaccumulate Cd, a sand-culture experiment was carried out to characterize fractionation of Cd in tissue of Cd-hyperaccumulating genotypes NY2 and NY5.
The sequential extractants were: 80% v/v ethanol ( F E ), deionized water ( F W ), 1 M NaCl ( F NaCl ), 2% v/v acetic acid ( F Acet ), and 0.6 M HCl ( F HCl ).
After 20 days of treatments, NY5 had greater plant biomass and greater Cd accumulation in tissues than NY2.
In both genotypes the F NaCl fraction was the highest in roots and stems, whereas the F Acet and F HCl fractions were the highest in leaves.
With an increase in Cd concentration in the culture solution, the content of every Cd fraction also increased.
The F W and F NaCl ratios in roots were lower in NY5 than in NY2, while the amount of other Cd forms was higher.
It implied that, in high accumulator, namely, NY5, the complex of insoluble phosphate tends to be shaped more easily which was much better for Cd accumulation.
Besides, translocation from plasma to vacuole after combination with protein may be one of the main mechanisms in Cd-accumulator Jerusalem artichoke genotypes.
American Psychological Association (APA)
Long, Xiaohua& Ni, Ni& Liu, Zhaopu& Rengel, Zed& Jiang, Xin& Shao, Hongbo. 2014. Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1049572
Modern Language Association (MLA)
Long, Xiaohua…[et al.]. Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes. The Scientific World Journal No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1049572
American Medical Association (AMA)
Long, Xiaohua& Ni, Ni& Liu, Zhaopu& Rengel, Zed& Jiang, Xin& Shao, Hongbo. Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1049572
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049572