|Table of Contents|

Effects of Simulated-Cd-pollution on Growth,Cadmium Accumulation and ?Its Subcellular Distribution in Brasica chinensis L.(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年22
Page:
6-11
Research Field:
Publishing date:

Info

Title:
Effects of Simulated-Cd-pollution on Growth,Cadmium Accumulation and ?Its Subcellular Distribution in Brasica chinensis L.
Author(s):
HAN Chao1; 2; SHEN Haiyu1; ZHANG Hao1
1.Department of Biological Science,Handan College,Handan,Hebei 056005;2.Key Laboratory of Resource Plant in Handan,Handan,Hebei 056005
Keywords:
Brasica chinensis L.; cadmium; accumulation; subcellular; distribution
PACS:
-
DOI:
10.11937/bfyy.20171730
Abstract:
In order to explore the tolerance and detoxification mechanism of two varieties of Brasica chinensis L.(‘Siyueman’ and ‘Shanghaiqing’) and their potential application in phytoremediation of Cd contaminated in soil,taking two varieties of Brasica chinensis L.(‘Siyueman’ and ‘Shanghaiqing’) as materials,soil pot experiment was used to manipulate soil Cd pollution and to investigate the effects of soil Cd pollution on growth,Cd accumulation and its subcellular distribution in Brasica chinensis L.The results showed that Cd pollution had little influence on the growth of variety ‘Siyueman’ but significantly inhibited the growth of variety ‘Shanghaiqing’(P<0.05).Under the two Cd levels,the Cd accumulations either in shoot or in the whole plant of variety ‘Siyueman’ were significantly higher than those in variety ‘Shanghaiqing’ (P<0.05).Furthermore,the enrichment coefficient and transfer coefficient in variety ‘Siyueman’ were greater than 1 and significantly higher than those in variety ‘Shanghaiqing’.In addition,the absorbed Cd in the two varieties was mainly accumulated in ectoderm.However,more Cd was distributed in ectoderm and fewer Cd was distributed in organelle in variety ‘Siyueman’ compared with variety ‘Shanghaiqing’.Under the two Cd pollution levels,the distribution fraction rates of Cd in organelle of variety ‘Siyueman’ were 12.84%,13.78% and 28.22%,26.40%,respectively.On the whole,the variety ‘Siyueman’ had a certain application potential in the phytoremediation of soil Cd pollution on account of its stronger abilities in absorbing and upward transporting Cd and lower Cd distribution fraction rate in organelle than those in variety ‘Shanghaiqing’.

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Last Update: 2017-11-22