[1]孙 磊,等.低聚壳聚糖处理对低温胁迫下水稻幼苗类囊体膜特性的影响[J].南京师大学报(自然科学版),2009,32(02):93-97.
 Sun Lei,Chen Guoxiang,Cheng Jialing,et al.Effects of Chitosan Treatment on Thylakoid Membrane Characters Characteristics in Rice Seedling Under Low Temperature[J].Journal of Nanjing Normal University(Natural Science Edition),2009,32(02):93-97.
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低聚壳聚糖处理对低温胁迫下水稻幼苗类囊体膜特性的影响()
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《南京师大学报(自然科学版)》[ISSN:1001-4616/CN:32-1239/N]

卷:
第32卷
期数:
2009年02期
页码:
93-97
栏目:
生命科学
出版日期:
2009-06-30

文章信息/Info

Title:
Effects of Chitosan Treatment on Thylakoid Membrane Characters Characteristics in Rice Seedling Under Low Temperature
作者:
孙 磊1 2 3 陈国祥1 程嘉翎2 3 吕川根4
1. 南京师范大学生命科学学院, 江苏南京210046
 2. 江苏科技大学蚕业研究所, 江苏镇江212003
 3. 中国农业科学院蚕业研究所, 江苏镇江212018
 4. 江苏省农业科学院粮食作物研究所, 江苏南京210014
Author(s):
Sun Lei123Chen Guoxiang1Cheng Jialing23Lü Chuangen4
1.School of Life Sciences,Nanjing Normal University,Nanjing 210046,China
关键词:
壳聚糖 水稻幼苗 低温 类囊体膜 脂肪酸 电子传递活性
Keywords:
chitosan rice seedling low temperature thylkako id m em brane fatty ac id electron transport activ ities
分类号:
S511
摘要:
以0.1%、0.3%、0.5%、0.7%4种浓度的低聚壳聚糖处理两优培九水稻幼苗,研究低聚壳聚糖对水稻幼苗抗冷性的影响.结果表明,低聚壳聚糖可以增加水稻幼苗的抗冷性,其中以0.5%的效果最好.低温下经低聚壳聚糖处理水稻幼苗类囊体膜的室内吸收光谱和发射光谱的主峰值、类囊体膜脂不饱和脂肪酸指数(IUFA)、PSⅠ和PSⅡ电子传递活性、叶绿素含量均比低温对照高.低聚壳聚糖处理保护了类囊体膜系统,减缓了低温对光合机构的破坏,增强了水稻幼苗的抗冷性.
Abstract:
The seedling s o f rice Liang you pe i jiu ( Ory za sativa L. ) we re treated w ith 0.1%, 0.3%, 0. 5% and 0.7% o f ch itosan for study ing the e ffects of ch ito san to change ch illing-to lerane activ ity of rice. The ch illing- tolerance of seedling s of rice cou ld be increased w ith chitosan trea tm en t. The concentra tion o f chitosan at 0. 5% show ed them ost e ffective. Under low tem pera ture stress ch lo rophy ll content, absorption spectra, fluorescence spectra, com position of membrane lip id acids and e lectron transport activ ites o f photosy stem s ( PSⅠ and PSⅡ ) and the index o f unsa turated fatty ac id ( IUFA) obta ined h igher activ ities. The resu lts ind icated that ch ito san treatm ent improved co ld resistance o f rice seedling s, w hich pro tected the m embrance sy stem, a llev iated the dam age to pho tosynthe tic o rganization under low temperature.

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金( 30270792)、教育部科学技术研究重点项目( 204049 ).
通讯联系人: 陈国祥, 教授, 博士生导师, 研究方向: 植物学. E-m ail:lgxchen@ n jnu. edu. cn
更新日期/Last Update: 2013-04-23