[1]王伟,李兴涛,綦左莹,等.低钾胁迫对不同效应型大豆光合特性及叶绿素荧光参数的影响[J].大豆科学,2008,27(03):451-455.[doi:10.11861/j.issn.1000-9841.2008.03.0451]
　WANG Wei,LI Xing-tao,QI Zuo-ying,et al.Effect of Low Potassium Stress on Photosynthetic and Chlorophyll Fluorescence Parameters of Two Soybean Varieties with Different K-efficiency[J].Soybean Science,2008,27(03):451-455.[doi:10.11861/j.issn.1000-9841.2008.03.0451]
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低钾胁迫对不同效应型大豆光合特性及叶绿素荧光参数的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第27卷 期数: 2008年03期 页码: 451-455 栏目: 出版日期: 2008-06-25
Title:
Effect of Low Potassium Stress on Photosynthetic and Chlorophyll Fluorescence Parameters of Two Soybean Varieties with Different K-efficiency
文章编号:
1000-9841(2008)03-0451-05
作者:
王伟; 李兴涛; 綦左莹; 曲婷婷; 曹敏建
沈阳农业大学农学院，辽宁 沈阳 110161
Author(s):
WANG Wei; LI Xing-tao; QI Zuo-ying; QU Ting-ting; CAO Min-jian
Agronomy Department of Shenyang Agricultural University，Shenyang 110161，Liaoning，China
关键词:
低钾胁迫; 效应型; 大豆; 光合特性; 叶绿素荧光参数
Keywords:
Low potassium stress; K-efficiency; Soybean; Photosynthesis; Chlorophyll fluorescence parameters
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.03.0451
文献标志码:
A
摘要:
以钾高效大豆品种九农15和低效品种GD8521为材料，在溶液培养条件下研究低钾胁迫对其叶绿素含量、光合特性及叶绿素荧光参数等生理指标的影响，从光合物质生产方面探讨不同效应型品种对低钾胁迫的耐性机制。结果表明：在低钾胁迫下，高效品种的叶绿素a、b及a+b总含量与对照之间没有差异，但叶绿素a/b值较对照显著提高，而低效品种的叶绿素a及a+b总量较对照显著降低，叶绿素b的含量及a/b值没有显著变化；低钾胁迫下高效品种仍保持较高的光合速率，但气孔导度和胞间CO2浓度则显著低于对照，低效品种的各参数下降幅度远大于高效品种，处理间均达到极显著差异；随着供钾水平的降低，高效品种叶绿素荧光各参数中仅Fv显著增加，而低效品种F0、Fm、Fv、Fv/Fm、Fv/ F0等参数的变化均达到显著或极显著水平；低钾胁迫下低效品种反应中心耗散的能量较多，用于电子传递的能量减少，而高效品种处理间无明显变化。由此可见，在低钾胁迫下高效型品种仍能保持较高的叶绿素含量，尤其是叶绿素a的比例显著提高，其光合电子传递过程受低钾胁迫的影响也较小，因而能保持较高的光合生产能力，而低效品种受低钾胁迫时各参数则发生显著变化，导致光合生产能力降低。
Abstract:
In former thesis，difference of photosynthetic ability due to low K stress between two kinds of K-efficiency varieties had been reported in soybean，but the internal change and factors led to this difference hadn’t been found.So in this experiment，we selected two soybean varieties with different K-efficiency as material，in order to study the effect of low potassium on chlorophyll(Chl) contents，photosynthesis characteristics and chlorophyll fluorescence parameters，so as to probing into tolerant mechanism of different K-efficient varieties on low potassium stress.The plants were grown in modified 1/2 Hoagland’s solution with two different levels of K(K0.5and K3.0).Results showed there was no difference in Chl contents(a，b and a+b) between low potassium stress and CK for K-efficient variety，but the ratio of Chl a/b increased significantly.For K-inefficient variety，the content of Chl a and(a+b) greatly decreased in low potassium stress，and there were no change in content of Chl b and ratio of Chl a/b.Photosynthetic rate(Pn) of K-efficient variety in low potassium level was similar to that of CK，but the CO2concentration(Ci) in the cell and stomatal conductance(Gs) in low K level were much lower than that of CK.For K-inefficient variety，the decreases of Pn，Ciand Gswere all significant.The differences of F0，Fm，Fv/Fmand Fv/F0between two K levels weren’t significant for K-efficient variety，while the changes of these parameters were significant difference for K-inefficient variety，including the change of Fv.Except for that，the ratio of energy dissipated by reaction center increased in low K stress for GD8521，and the ratio of transfer energy decreased at the same time，while those change of Jiunong 15 were tiny.So we can concluded that a relatively high content of Chl a，b and(a+b)，especially the increase of Chl a content，resulted in a high ability of photosynthesis，the effective transfer of photosynthetic electron was another factor in maintaining the ability，while the significant changes of those parameters led to decrease of photosynthesis ability for K-inefficiency variety.

参考文献/References:

[1]李春杰，王建国，许艳丽，等.钾对大豆产量及品质的影响.农业系统科学与综合研究[J].2005，21(2)： 154-155，160.(Li C J，Wang J G，Xu Y L，et al.Effect of potassium on the yield and quality of soybean[J].System Sciences and Comprehensive Studies in Agriculture，2005，21(2)： 154-155，160.)

[2]彭海欢，翁晓燕，徐红霞，等.缺钾胁迫对水稻光合特性及光合防御机制的影响[J].中国水稻科学，2006，20(6)： 621-625.(Peng H H，Weng X Y，Xu H X，et al.Effects of potassium deficiency on photosynthesis and photo-protection mechanisms in rice plants[J].Chinese Journal of Rice Science，2006，20(6)： 621-625.)
[3]王伟，曹敏建，綦左莹，等.不同大豆品种对钾素吸收和利用效率差异的比较研究[J].大豆科学，2007，26(4)： 561-564.(Wang W，Cao M J，Qi Z Y，et al.Comparison of potassium absorb and use efficiency in soybean varieties[J].Soybean Science，2007，26(4)： 561-564.)
[4]刘建祥，杨肖娥，吴良欢，等.低钾胁迫对水稻叶片光合功能的影响及其基因型差异 [J].作物学报，2001，27(6)： 1000-1006.(Liu J X，Yang X E，Wu L H，et al.The effects of low potassium stress on the photosynthetic function of rice leaves and their genotypic difference[J].Acta Agronomica Sinica，2001，27(6)： 1000-1006.)
[5]陆庆，蒋德安，翁晓燕，等.钾营养对不同水稻基因型物质生产和光合作用的效应[J].浙江农业大学学报，1999，25(3)： 267-270.(Lu Q，Jiang D A，Weng X Y，et al.The effect of potassium nutrition on dry matter production and photosynthesis of different genotype in rice[J].Journal of Zhejiang Agricultural University，1999，25(3)：267-270.)
[6]陈建明，俞晓平，程家安.叶绿素荧光动力学及其在植物抗逆生理研究中的应用[J].浙江农业学报，2006，18(1)： 51-55.(Chen J M，Yu X P，Cheng J A.The application of chlorophyll fluorescence kinetics in the study of physiological responses of plants to environmental stresses[J].Acta Agriculture Zhejiangensis，2006，18(1)： 51-55.)
[7]王可玢，赵福洪，王孝宣，等.用体内叶绿素a荧光诱导动力学鉴定番茄的抗冷性[J].植物学通报，1996，13(2)： 29-33.(Wang K F，Zhao F H，Wang X X，et al.In vivo chlorophyll a fluorescence induction kinetics as a tool for chilling-tolerance detection in tomato[J].Chinese Bulletin of Botany，1996，13(2)： 29-33.)
[8]郭延平，周慧芬，曾光辉，等.高温胁迫对柑橘光合速率和光系统Ⅱ活性的影响[J].应用生态学报，2003，14(6)： 867-870.(Guo Y P，Zhou H F，Zeng G H，et al.Effects of high temperature stress on net photosynthetic rate and photosystem Ⅱ activity in Citrus[J].Chinese Journal of Applied Ecology，2003，14(6)： 867-870.)
[9]林世青，许春辉，张其德，等.叶绿素荧光动力学在植物抗性生理学、生态学和农业现代化中的应用[J].植物学通报，1992，9(1)： 1-16.( Lin S Q，Xu C H，Zhang Q D，et al.Some application of chlorophyll fluorescence kinetics to plant stress physiology ecology and agricultural modernization[J].Chinese Bulletin of Botany，1992，9(1)： 1-16.)
[10]李鹏民，高辉远，Strasser R J.快速叶绿素荧光诱导动力学分析在光合作用研究中的应用[J].植物生理与分子生物学报，2005，31(6)： 559-566.(Li P M，Gao H Y，Strasser R J.Application of the fast chlorophyll fluorescence induction dynamics analysis in photosynthesis study[J].Journal of Plant Physiology and Molecular Biology，2005，31(6)： 559-566.)
[11]许大全.光合作用气孔限制分析中的一些问题[J].植物生理学通讯，1997，33(4)： 241-244.(Xu D Q.Some problems in stomatal limitation analysis of photosynthesis[J].PlantPhysiology Communications，1997，33(4)： 241-244.)
[12]俞慧娜，刘鹏，徐根娣.大豆生长及叶绿素荧光特性对铝胁迫的反应[J].中国油料作物学报，2007，29(3)： 257-265.(Yu H N，Liu P，Xu G D.Responses of growth and chlorophyll fluorescence characteristics of soybean to aluminum treatment[J].Chinese Journal of Oil Crop Sciences，2007，29(3)： 257-265.)

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备注/Memo

作者简介：王伟(1979-)，女，博士研究生，主要从事作物抗逆性生理机制研究。E -mail：wangweikitty@163.com。

更新日期/Last Update: 2014-10-08