|本期目录/Table of Contents|

[1]黄程,文小梅,唐殷,等.外源水杨酸对盐胁迫下小白菜幼苗生理的影响[J].江苏农业科学,2020,48(07):147-151.
 Huang Cheng,et al.Influence of exogenous salicylic acid on physiology of Chinese cabbage seedlings under salt stress[J].Jiangsu Agricultural Sciences,2020,48(07):147-151.
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外源水杨酸对盐胁迫下小白菜幼苗生理的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第48卷
期数:
2020年第07期
页码:
147-151
栏目:
园艺与林学
出版日期:
2020-04-13

文章信息/Info

Title:
Influence of exogenous salicylic acid on physiology of Chinese cabbage seedlings under salt stress
作者:
黄程 文小梅 唐殷 郭磊周 江世杰 代其林
西南科技大学生命科学与工程学院,四川绵阳 621010
Author(s):
Huang Chenget al
关键词:
水杨酸小白菜盐胁迫生理生化基因表达
Keywords:
-
分类号:
S634.301
DOI:
-
文献标志码:
A
摘要:
采用叶面喷施法探讨水杨酸(SA)对不同时间段NaCl胁迫下小白菜(Brassica campestris L.)幼苗生理的影响。结果表明,随着盐胁迫时间的延长,SA预处理的小白菜幼苗叶片叶绿素含量、相对含水量、脯氨酸含量、可溶性糖含量、可溶性蛋白质含量、过氧化物酶(POD)活性和超氧化物歧化酶(SOD)活性以及相关基因的表达量均高于对照处理;而丙二醛含量和相对电导率均低于对照处理。在整个盐胁迫过程中,相对含水量、叶绿素含量、可溶性蛋白含量、可溶性糖含量以及脯氨酸含量呈不断下降的趋势;丙二醛含量和相对电导率呈不断上升的趋势;POD活性以及SOD活性呈先上升后下降的趋势,峰值均出现在3 d。POD基因与SOD基因的相对表达量呈先上升后下降的趋势,且峰值出现在3 d。分析结果表明,外源水杨酸可以通过提高叶绿素含量、相对含水量、渗透调节物质含量来上调抗氧化酶基因的表达,增强抗氧化酶活性,并且减轻细胞膜损伤来缓解盐胁迫对小白菜幼苗的伤害,从而提高小白菜幼苗的抗盐能力。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2019-09-16
基金项目:国家科技重大专项(编号:2019ZX08010004-005);西南科技大学博士研究基金(编号:11zx7104)。
作者介绍:黄程(1993—),男,四川绵阳人,硕士,主要从事植物逆境生理与分子生物学研究。E-mail:787948046@qq.com。
通信作者:代其林,博士,副教授,主要从事植物逆境生理与分子生物学研究。E-mail:daiqilinmj@sina.com。
更新日期/Last Update: 2020-04-05