|本期目录/Table of Contents|

[1]郑欣,刘夏囡,郑胜男,等.镉胁迫下超氧阴离子对水稻幼苗根系生长和生长素分布动态变化的影响[J].江苏农业科学,2017,45(07):55-58.
　Zheng Xin,et al.Effects of superoxide anion on root growth and auxin distribution dynamic change of rice seedlings under cadmium stress[J].Jiangsu Agricultural Sciences,2017,45(07):55-58.
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镉胁迫下超氧阴离子对水稻幼苗根系生长和生长素分布动态变化的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年07期
页码:
55-58
栏目:
遗传育种与耕作栽培
出版日期:
2017-04-20

文章信息/Info

Title:
Effects of superoxide anion on root growth and auxin distribution dynamic change of rice seedlings under cadmium stress
作者:
郑欣;  刘夏囡;  郑胜男;  车轩;  周士钊;  迟世飞;  邢伟;  付童童;  孙川惠;  赵凤云
山东理工大学生命科学学院，山东淄博 255049
Author(s):
Zheng Xin; et al
关键词:
生长素分布; 镉胁迫; 水稻根系; 超氧阴离子
Keywords:
-
分类号:
S511.01
DOI:
-
文献标志码:
A
摘要:
以DR5-GUS转基因水稻 (以水稻中花11为背景)为试验材料，分析镉胁迫下超氧阴离子(O-2·)介导的根系生长动态变化与生长素重新分布之间的关系。结果发现，在镉胁迫与非胁迫条件下DDC(SOD抑制剂)处理明显促进了根系的生长。GUS活性检测显示DDC和Cd+DDC处理条件下根系生长的动态变化与生长素浓度和分布的动态变化密切相关。进一步研究显示，DDC+BFA(蛋白运输抑制剂)/MG132 /(蛋白降解抑制剂)或Cd+DDC+BFA/MG132处理比DDC或Cd+DDC处理增强了GUS活性。这些结果证实O-2· 介导的生长素重新分布与蛋白转运/降解有密切关系，O-2· 与生长素信号之间存在交互作用。以上结果表明，适量的O-2· 通过蛋白转运/降解介导的生长素重新分布是镉胁迫及非胁迫条件下水稻幼苗根系生长特别是不定根和侧根生长所必需的。
Abstract:
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参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2016-02-26
基金项目：山东省自然科学基金 (编号：ZR2014DM010、ZR2015CL009)；山东省淄博市科技发展计划(编号：111089、113106)。
作者简介：郑欣(1994—)，女，山东济宁人。
通信作者：赵凤云，博士，教授，主要从事分子生物学研究。E-mail：zfy1226@126.com。
更新日期/Last Update: 2017-04-05