[1]张会慧,张秀丽,王娟,等.利用快相叶绿素荧光参数综合评价3种丁香的耐盐性[J].南京林业大学学报(自然科学版),2013,37(05):013-19.[doi:10.3969/j.issn.1000-2006.2013.05.003]
 ZHANG Huihui,ZHANG Xiuli,WANG Juan,et al.A comprehensive evaluation of salt resistance in three clove varieties by the fast fluorescence transient parameters[J].Journal of Nanjing Forestry University(Natural Science Edition),2013,37(05):013-19.[doi:10.3969/j.issn.1000-2006.2013.05.003]
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利用快相叶绿素荧光参数综合评价3种丁香的耐盐性
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
37
期数:
2013年05期
页码:
013-19
栏目:
研究论文
出版日期:
2013-09-30

文章信息/Info

Title:
A comprehensive evaluation of salt resistance in three clove varieties by the fast fluorescence transient parameters
文章编号:
1000-2006(2013)05-0013-07
作者:
张会慧 张秀丽 王娟 田野 李鑫 胡举伟 孙广玉*
东北林业大学生命科学学院,黑龙江哈尔滨150040
Author(s):
ZHANG Huihui ZHANG Xiuli WANG Juan TIAN Ye LI Xin HU Juwei SUN Guangyu
College of Life Science, Northeast Forest University, Harbin 150040,China
关键词:
丁香盐胁迫光系统Ⅱ耐盐性
Keywords:
clove salt stress photosystem Ⅱ salt resistance
分类号:
Q945.1
DOI:
10.3969/j.issn.1000-2006.2013.05.003
文献标志码:
A
摘要:
以紫丁香(Syringa oblata)、白丁香(S. oblata var. alba)和暴马丁香(S. reticular var. mandshurica)为试验材料,利 用快相叶绿素荧光技术研究了叶片光系统Ⅱ(PSⅡ)对盐胁迫的快速响应,并通过PSⅡ功能参数对丁香耐盐性进行了综合评价 。结果表明:盐胁迫下3种丁香叶片的盐害表型特征和耐盐阈值与叶绿素荧光参数的变化趋势基本相符,随着盐浓度的增加 ,3种丁香叶片PSⅡ电子受体库容量降低,电子由QA向QB的传递过程受到抑制,最终导致PSⅡ向PSⅠ的电子传递能力降低 ,以吸收光能为基础的光合性能指数受到明显抑制。随着盐浓度的增加,3种丁香叶片的φDo和DIo/RC均呈增加趋势,即在 盐胁迫下3种丁香叶片均可以通过增加热耗散的比例来降低激发能的产生,提高叶片的耐盐性,但过高的热耗散比例也降低 了电子传递的能量比例(φEo和ETo/RC降低)。3种丁香叶片的各叶绿素荧光参数之间均存在显著或极显著的相关关系,通过 隶属函数法对3种丁香叶片PSⅡ功能耐盐能力进行综合评价,结果发现盐胁迫下白丁香的PSⅡ功能耐盐性最强,暴马丁香次 之,紫丁香最差。
Abstract:
Syringa oblata, S. oblata var. alba and S. reticular var. mandshurica were used as test materials to investigate physiological reactions of photosystem Ⅱ in leaves under NaCl stress using the fast fluorescence transients techniques. And a comprehensive appraisal of photosystem Ⅱ functions on the salttolerance was estimated in clove varieties. The results showed that the salt damage phenotypic characteristics and salt tolerance threshold values were basically the same as the trend of changes in chlorophyll fluorescence parameters in leaves of three clove. Along with the increasing of salt concentration, photosystem Ⅱ functions of three clove varieties were decreased, storage capacity PSⅡ electronic receptors were reduced, and electrons from QA to QB were inhibited. The inhibitions leaded to a reduction on electron transport from PS Ⅱ to PS Ⅰ, and the photosynthetic performance index on energy absorption basis(PIABS) was significantly inhibited. φDo and DIo/RC in leaves of three clove varieties showed an increasing trend. That was to say, the excitation energy could be reduced by increasing the ratio of heat dissipation in leaves of three clove varieties under salt stress, and the leaf salttolerance could be improved. However, the exorbitant ratio of heat dissipation also reduced the energy ratio of electron transport (φEo and ETo/RC were decreased). There were significant or highly significant correlations among different chlorophyll fluorescence parameters in leaves of three clove varieties. The subordinative fuzzy function was used to evaluate comprehensively salt tolerance, results showed that the ordination of salttolerance in photosystem Ⅱ functions from high to low was as follow:S. oblata var. alba > S. reticular var. mandshurica > Syringa oblata.

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备注/Memo

备注/Memo:
收稿日期:2012-12-13修回日期:2013-06-07 基金项目:“十二五”国家科技支撑计划(2011BAD08B02-3);国家自然科学基金项目(30771746,31070307);黑龙江省自 然科学基金重点项目(ZD201105) 第一作者:张会慧,博士生。 *通信作者:孙广玉,教授。 Email: sungy@vip.sina.com。 引文格式:张会慧,张秀丽,王娟,等. 利用快相叶绿素荧光参数综合评价3种丁香的耐盐性[J]. 南京林业大学学报:自然科 学版,2013,37(5):13-19.
更新日期/Last Update: 2013-09-30