|Table of Contents|

Detoxification of Sulfur on Soybean Seeds Under Copper Stress(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年04期
Page:
630-633
Research Field:
Publishing date:

Info

Title:
Detoxification of Sulfur on Soybean Seeds Under Copper Stress
Author(s):
CHEN Yu-sheng; CHEN Quan-zhan
School of Biochemical and Environmental Engineering, Nanjing Xiaozhuang University, Nanjing 211171, Jiangsu, China
Keywords:
Copper stress; Sulfur; Soybean; Protective enzymes
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.04.0630
Abstract:
The alleviation effects of exogenous sulfate on copper toxicity during the seed germination of soybean (Sudou No.4) was studied. The soybean seeds were soaked in solution with different copper concentrations of 0, 0.5, 1.0, 2.0, 4.0 mmol·L-1, supplied with 5.0, 10.0 mmol·L-1 sulfur, and then the seeds germination, relative permeability and activities of protective enzymes were investigated. The results showed the seed vigor was decreased with the increasing of copper concentration. Addition of sulfur could alleviate the toxicity of 1.0 mmol·L-1 copper to soybean seeds, especially in increasing seed activity index, enhancing root length, and reducing the relative permeability of cell membrane. Under different copper concentrations, 5.0 mmol·L-1 could increase POD activity and decrease CAT activity. The results indicated that sulfur alleviated copper toxicity on soybean seeds to a certain extent, and protective enzymes could maintain the integrity of cell membrane.

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