|本期目录/Table of Contents|

[1]成铁龙,彭冶,施季森,等.低温胁迫对杂交鹅掌楸幼苗活性氧和活性氮代谢的影响[J].江苏农业科学,2017,45(24):99-102.
　Cheng Tielong,et al.Effects of low temperature stress on reactive oxygen and nitrogen metabolism in seedlings of liriodendron hybrids[J].Jiangsu Agricultural Sciences,2017,45(24):99-102.
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低温胁迫对杂交鹅掌楸幼苗活性氧
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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24期
页码:
99-102
栏目:
园艺与林学
出版日期:
2017-12-20

文章信息/Info

Title:
Effects of low temperature stress on reactive oxygen and nitrogen metabolism in seedlings of liriodendron hybrids
作者:
成铁龙1; 2;  彭冶1; 2;  施季森1; 3;  陈金慧1; 3;  杨立明1; 2
1.南方现代林业协同创新中心，江苏南京 210037； 2.南京林业大学生物与环境学院，江苏南京 210037；
3. 南京林业大学林木遗传与生物技术省部共建教育部重点实验室，江苏南京 210037
Author(s):
Cheng Tielong; et al
关键词:
杂交鹅掌楸; 低温; 活性氧; 活性氮
Keywords:
-
分类号:
S792.210.1
DOI:
-
文献标志码:
A
摘要:
为了探究低温胁迫处理对鹅掌楸［Liriodendron chinense(Hemsl.)Sarg.］幼苗叶片内的活性氧和活性氮代谢的影响，以杂交鹅掌楸幼苗为材料，在4 ℃条件下处理6 d，随后于室温下恢复2 d，测定不同时间段幼苗叶片内超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、一氧化氮合成酶(NOS)等酶活性的变化，以及超氧阴离子( O-2· )、过氧化氢(H2O2)、一氧化氮(NO)的含量。结果表明，6 d的低温胁迫处理引起了杂交鹅掌楸幼苗叶片内SOD、CAT、NOS活性逐渐升高；室温恢复2 d后叶片内SOD、CAT、NOS活性又有所降低，但仍高于对照。低温胁迫处理6 d，O-2· 和H2O2含量升高并维持在较高的水平，NO含量也呈现增加的趋势；室温恢复2 d后叶片内 O-2· 、H2O2和NO含量有所降低，但仍高于对照。低温胁迫导致杂交鹅掌楸幼苗叶片积累了大量的活性氧和活性氮代谢物，引起其氧化还原系统的失衡，进而对植株造成伤害。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期：2017-10-01
基金项目：国家“863”计划(编号：2013AA102705)；江苏省高校自然科学基金(编号：13KJA220001)；江苏省高校青蓝工程；江苏省高校优势学科建设工程(PAPD)。
作者简介：成铁龙(1975—)，男，江西修水人，博士，高级工程师，主要从事林木分子生物学研究。E-mail：chengtl@njfu.edu.cn。
通信作者：杨立明，博士，教授，主要从事林木遗传育种研究。E-mail：yangliming@njfu.edu.cn。
更新日期/Last Update: 2017-12-20