中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 重金属Cr~(6+)胁迫对玉米幼苗生理生化特性的影响 安徽农业科学 2009 (17) 134-135+159
Position: Home > Articles > Influence of Heavy Metal Stress of Cr6+ on the Physiological and Biochemical Characteristics of Maize Seedlings Journal of Anhui Agricultural Sciences 2009 (17) 134-135+159

重金属Cr~(6+)胁迫对玉米幼苗生理生化特性的影响

作  者：
陈庆华;王百木;凡永华;丁涛;曾丽丽;史欢欢
单  位：
永城职业学院
关键词：
玉米;铬胁迫;生理生化指标
摘  要：
[目的]为揭示铬对玉米的伤害机制提供理论依据。[方法]通过测定不同浓度Cr6+胁迫下玉米幼苗根和上胚轴的生理生化指标研究Cr6+胁迫对玉米幼苗生理生化特性的影响。[结果]在20 mg/L Cr6+胁迫下,幼苗根部的Pro积累量达到峰值,比对照增加了1.60倍;在50 mg/L Cr6+胁迫下,上胚轴的Pro积累量达到峰值,比对照增加了1.48倍。在100 mg/L Cr6+胁迫下,根和上胚轴的质膜透性分别是对照的1.63和1.48倍,MDA含量分别是对照的1.51和1.37倍,SOD活性分别比对照下降了27.7%和22.9%;根部的POD活性比对照低9.9%,上胚轴的POD活性比对照高13.6%。在10 mg/L Cr6+胁迫下,根部POD活性达到峰值,比对照增加了49.2%;在50 mg/L Cr6+胁迫下,上胚轴POD活性达到峰值,比对照增加了57.9%。[结论]玉米幼苗对铬胁迫的耐受性是有限的。
译  名：
Influence of Heavy Metal Stress of Cr6+ on the Physiological and Biochemical Characteristics of Maize Seedlings
作  者：
CHEN Qing-hua et al(Yongcheng Vocational College,Yongcheng,Henan 476600)
关键词：
Maize;Chromic stress;Physiological and biochemical indices
摘  要：
[Objective] The purpose of the study was to provide theoretical basis for revealing the toxicological mechanism of chromium on maize.[Method] The influence of Cr6+ stress on the physiological and biochemical characteristics of maize seedlings was studied through determining the physiological and biochemical indigces in the roots and epicotyls of maize seedlings under stresses of different Cr6+ concn.[Result] Under the stress of 20 mg/L Cr6+,the accumulation amount of Pro in the roots of seedlings reached its peak value and was increased by 1.60 times in comparison with CK.Under the stress of 50 mg/L Cr6+,the accumulation amount of Pro in the epicotyls reached its peak value and was increased by 1.48 times in comparison with CK.Under the stress of 100 mg/L Cr6+,the membrane permeabilities of roots and epicotyls were 1.63 and 1.48 times of that in CK resp.,their contents of MDA were 1.51 and 1.37 times of that in CK resp.,their activities of SOD were decreased by 27.7% and 22.9% in comparison with CK resp.,the activity of POD in roots was 9.9% lower than that in CK and the activity of POD in epicotyls was 13.6% higher than that in CK.Under the stress of 10 mg/L Cr6+,the activity of POD in roots reached its peak value and was increased by 49.2% in comparison with CK.Under the stress of 50 mg/L Cr6+,the activity of POD in epicotyls reached its peak value and was increased by 57.9% in comparison with CK.[Conclusion] The tolerance of maize seedlings to chromium stress was limit.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46