Difference in Cd~(2+) flux around the root tips of different soybean (Glycine max L.) cultivars and physiological response under mild cadmium stress

Wang Siqi; Dai Huiping; Skuza LidiaChen YanqiuWei Shuhe

首页> 外文期刊>Chemosphere >Difference in Cd~(2+) flux around the root tips of different soybean (Glycine max L.) cultivars and physiological response under mild cadmium stress

【24h】

Difference in Cd~(2+) flux around the root tips of different soybean (Glycine max L.) cultivars and physiological response under mild cadmium stress

机译：Difference in Cd~(2+) flux around the root tips of different soybean (Glycine max L.) cultivars and physiological response under mild cadmium stress

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The purpose of the study was to compare differences in Cd2+ flux in the vicinity of root tips of 20 soybean cultivars under mild Cd stress conditions using non-invasive micro-test technology (NMT). The results indicated that Cd2+ influx to the root tips under mild Cd treatment was higher compared to controls. Cd2+ influx showed an obvious spatial distribution, with the highest Cd2+ influx measured 300 mu m from the root tips, and a gradually decrease above and below this site. The cultivar Liaodou32 had a lower Cd uptake (3.40 pmol cm(-2) s(-1)), while Liaodou23 had a relatively higher Cd uptake (66.37 pmol cm(-2) s(-1)). Cluster analysis showed that the order of the average Cd2+ influx of the cultivars at a distance of 300 mu m from the root tips was as follows: high-uptake cultivars (61.80 pmol cm(-2) s(-1)) medium-high-uptake cultivars (33.92 pmol cm(-2) s(-1)) medium-low-uptake cultivars (19.78 pmol cm(-2) s(-1)) low-uptake cultivars (4.84 pmol cm(-2) s(-1)). We also analyzed physiological responses of different soybean cultivars to mild Cd stress. The results indicated that mild Cd stress could inhibit soluble protein production and root vigor among individual soybean cultivars. Moreover, stress increased SOD, CAT and POD activities and MDA content in root tissues. It should be noted that the physio-biochemical indicators of low-uptake cultivars did not change significantly after exposure to mild Cd stress compared to controls. Pearson's correlation analyses showed that all physio-biochemical indicators were significantly positively associated with influx, except of root SP and biomass. PCA analysis demonstrated that root vigor was a dominant factor causing the differences in Cd tolerance among different soybean seedling cultivars. NMT is of great significance for safe utilization of contaminated soil to distinguish the cultivars with different enrichment capacity for heavy metals from different crop cultivars.

著录项

来源
《Chemosphere》 |2022年第6期|134120.1-134120.12|共12页
作者
Wang Siqi; Dai Huiping; Skuza LidiaChen YanqiuWei Shuhe;
展开▼
作者单位

Shenyang Ligong Univ, Acad Environm Chem Engn, Key Lab Wastewater Treatment Technol Liaoning Pro, Shenyang 110159, Liaoning, Peoples R China|Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China;

Shaanxi Univ Technol, State Key Lab Biol Resources & Ecol Environm Join, Qinling Bashan Mt Bioresources Comprehens Dev CIC, Shaanxi Prov Key Lab Bio Resources,Coll Biol Sci, Hanzhong 723001, Peoples R China;

Univ Szczecin, Inst Biol, Ctr Mol Biol & Biotechnol, PL-71415 Szczecin, PolandLiaoning Acad Agr Sci, Crop Inst, Shenyang 110161, Liaoning, Peoples R ChinaChinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类
关键词
Cd; Soybean; Influxes; Root tips; Root vigor; POD;

Difference in Cd~(2+) flux around the root tips of different soybean (Glycine max L.) cultivars and physiological response under mild cadmium stress

摘要

著录项

相关主题

期刊订阅