不同品种大豆幼苗对镉胁迫的响应

通过水培实验,研究了6个大豆品种幼苗对50μmol/L镉（Cd）胁迫的响应。结果表明：不同大豆品种对Cd的耐受性、吸收及积累能力存在显著差异。镉对大豆地上部干重的抑制率为4.07%～20.65%,对根系的抑制率为-7.24%～33.72%。经镉处理6 d后,大豆地上部镉含量为88.03～136.88 mg/kg,根系镉含量为486.07～602.41 mg/kg。镉胁迫明显增加了6个大豆品种叶片中丙二醛（MDA）的含量和超氧化物歧化酶（SOD）的活性。...

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Bibliographic Details
Published in江西农业学报 Vol. 29; no. 3; pp. 14 - 17
Main Author 刘晓庆 陈华涛 张红梅 张智民 陈新
Format Journal Article
LanguageChinese
Published 江苏省农业科学院 蔬菜研究所/江苏省高效园艺作物遗传改良实验室,江苏 南京,210014 2017
Subjects
大豆
幼苗
积累
耐性
镉
幼苗
Cadmium
Seedling
大豆
耐性
Tolerance
镉
Soybean
Accumulation
积累
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ISSN1001-8581
DOI10.19386/j.cnki.jxnyxb.2017.03.03

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Summary:通过水培实验,研究了6个大豆品种幼苗对50μmol/L镉（Cd）胁迫的响应。结果表明：不同大豆品种对Cd的耐受性、吸收及积累能力存在显著差异。镉对大豆地上部干重的抑制率为4.07%～20.65%,对根系的抑制率为-7.24%～33.72%。经镉处理6 d后,大豆地上部镉含量为88.03～136.88 mg/kg,根系镉含量为486.07～602.41 mg/kg。镉胁迫明显增加了6个大豆品种叶片中丙二醛（MDA）的含量和超氧化物歧化酶（SOD）的活性。
Bibliography:Cadmium; Soybean; Seedling; Tolerance; Accumulation
36-1124/S
A water culture experiment was conducted to investigate the response of seedlings of six soybean varieties to 50μmol/L cadmium（ Cd） stress. The results showed that there were significant differences in Cd tolerance,absorption and accumulation among different soybean varieties. For 6 soybean varieties under Cd stress,the inhibition percentage of their shoot dry weight varied from 4.07% to 20.65%,and the inhibition percentage of root dry weight varied from-7.24% to 33.72%. After 6 day＇s Cd treatment,the Cd content in soybean shoots and roots was 88. 03 ~ 136. 88 mg/kg and 486. 07 ~ 602. 41 mg/kg,respectively. Cd stress obviously enhanced the MDA content and SOD activity in leaves of 6 soybean varieties.
LIU Xiao-qing, CHEN Hua-tao, ZHANG Hong-mei, ZHANG Zhi-min, CHEN Xin （ Institute of Vegetable Crops, Jiangsu Academy of Agricultural Sciences ! Jiangsu Provincial Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing 210014, China）
ISSN:1001-8581
DOI:10.19386/j.cnki.jxnyxb.2017.03.03