|本期目录/Table of Contents|

[1]李朋欣,龙明华,乔双雨,等.多环芳烃胁迫菜心叶片上下表皮对其生理特性的影响[J].江苏农业科学,2019,47(09):175-178.
 Li Pengxin,et al.Effects of PAHs on some physiological characteristics of flowering Chinese cabbage leaf upper and lower epidermises[J].Jiangsu Agricultural Sciences,2019,47(09):175-178.
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多环芳烃胁迫菜心叶片上下表皮对其生理特性的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第09期
页码:
175-178
栏目:
园艺与林学
出版日期:
2019-05-27

文章信息/Info

Title:
Effects of PAHs on some physiological characteristics of flowering Chinese cabbage leaf upper and lower epidermises
作者:
李朋欣1 龙明华1 乔双雨1 唐璇1 张会敏1 梁勇生12
1.广西大学农学院,广西南宁 530004; 2.南宁市蔬菜研究所,广西南宁 530000
Author(s):
Li Pengxinet al
关键词:
多环芳烃菜心上表皮下表皮生理特性
Keywords:
-
分类号:
TQ450.1+2
DOI:
-
文献标志码:
A
摘要:
以菜心为试验材料,设定对照(CK)与低、中、高4个不同的多环芳烃(polycyclic aromatic hydrocarbons,简称PAHs)浓度:0.0(CK)、0.3、0.6、0.9 mg/L,分别胁迫菜心叶片上表皮(A1处理)和下表皮(A2处理),比较不同浓度的PAHs及胁迫部位对菜心生理特性的影响。结果表明,A1、A2处理均使菜心株高降低,且随着处理浓度的增加,株高逐渐降低,A1处理比A2处理降低得更多。A1处理在高浓度PAHs处理下的叶绿素含量达到最大值,A2处理在低浓度PAHs处理下的叶绿素含量达到最大值。A1、A2处理的丙二醛(MDA)含量增加,且在中、高浓度下,A2处理比A1处理的MDA含量增加得更多。A1处理的可溶性蛋白含量有所增加,A2处理的中、低浓度可溶性蛋白含量有所减少,但与对照组相比无明显差异。A1、A2处理的过氧化物酶(POD)和抗坏血酸过氧化物酶(APX)活性均降低,且A2处理比A1处理的APX活性降低得更为明显,A1、A2处理的过氧化氢酶(CAT)活性均增高。由结果可知,在不同浓度的PAHs和不同胁迫部位处理下,菜心的株高均降低,叶表比叶背处理降低得更多;用0.0~0.9 mg/L PAHs处理叶表和叶背,对菜心叶片叶绿素含量均有促进作用。中、高浓度PAHs处理叶背比处理叶表的MDA含量增加得更多。PAHs处理对菜心可溶性蛋白含量无明显影响。总体看出,在PAHs处理下,POD、APX活性降低,CAT活性提高,且处理叶背的APX活性降低得更为明显。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2018-01-28
基金项目:国家自然科学基金(编号:31360479);广西自然科学基金(编号;2014GXNSFAA118100);国家现代农业产业技术体系广西大宗蔬菜创新团队建设项目(编号:nycytxgxcxtd-03-10-1)。
作者简介:李朋欣(1991—),女,河北邢台人,硕士研究生,研究方向为设施栽培生理及遗传育种。E-mail:1762605512@qq.com。
通信作者:龙明华,博士,教授,主要从事蔬菜育种及农产品质量安全方面的研究工作。E
更新日期/Last Update: 2019-05-05