|本期目录/Table of Contents|

[1]范春丽,罗青.干旱胁迫下外源甜菜碱对石榴光合作用、渗透调节及保护酶活性的影响[J].江苏农业科学,2016,44(11):229-232.
 Fan Chunli,et al.Effects of exogenous glycinebetaine on photosynthesis,osmotic adjustment ability and protective enzyme activity of Punica granatum under drought stress[J].Jiangsu Agricultural Sciences,2016,44(11):229-232.
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干旱胁迫下外源甜菜碱对石榴光合作用、渗透调节
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第44卷
期数:
2016年11期
页码:
229-232
栏目:
园艺与林学
出版日期:
2016-11-25

文章信息/Info

Title:
Effects of exogenous glycinebetaine on photosynthesis,osmotic adjustment ability and protective enzyme activity of Punica granatum under drought stress
作者:
范春丽 罗青
郑州师范学院生命科学系,河南郑州 450044
Author(s):
Fan Chunliet al
关键词:
外源甜菜碱干旱石榴光合作用渗透调节保护酶
Keywords:
-
分类号:
S665.401
DOI:
-
文献标志码:
A
摘要:
选用2年生泰山红石榴为试验材料,用200 mmol/L浓度甜菜碱叶面喷施,研究干旱胁迫下喷施甜菜碱对石榴光合作用、渗透调节及抗氧化酶响应的影响。结果表明,干旱胁迫下,喷施甜菜碱提高了石榴叶片可溶性糖、游离脯氨酸含量,同时提高苹果幼树渗透调节能力;提高了超氧化物歧化酶(SOD)、过氧化物酶(CAT)、抗坏血酸过氧化物酶(APX)抗氧化酶活性,降低了丙二醛(MDA)、H2O2积累,缓解了干旱胁迫对细胞结构的伤害;同时,提高叶片相对含水量、叶绿素含量,使叶片光合能力增强。甜菜碱提高苹果幼树抗旱性的主要作用机制,是对渗透调节物质代谢的调节及对抗氧化酶等生物大分子物质结构的保护。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2015-09-15
基金项目:河南省郑州市科技项目(编号:0910SGYSS4371-2)。
作者简介:范春丽(1978—),女,河南荥阳人,硕士,讲师,主要从事生物技术研究。E-mail:2271581631@qq.com。
更新日期/Last Update: 2016-11-25