Effects of NaCl Stress on Chlorophyll Fluorescence Parameters and Excitation Energy Dissipation in Leaves of Eggplant Seedlings

doi:10.7668/hbnxb.2009.06.017

Abstract

Abstract: Effects of NaCl stress on chlorophyll fluorescence parameters of eggplant seedlings were investigated.The results indicated that with increasing NaCl concentration,maximumfluorescence (Fm),photochemical maximum efficiency of PSII (Fv/ Fm),potential photochemical efficiency (Fv/ Fo),actual photochemical efficiencyof PSII (Ф PSII),efficiency of excitation captured by open PSII centers (Fv ’/ Fm’),photochemical quenching coefficient (qP) and the electron transport rate (ETR) were decreased,minimal fluorescence (Fo),non2photochemical quenching coefficient (NPQ) and high excitation pressure (1-qP) were increased;The fraction of absorbed light in photochemistry (P) were decreased,the fraction of antenna heat dissipation (D) were increased,while excess energy (E) changed unstable,antenna heat dissipation (D) was the main wayfor excessive energy dissipation.These results showed reaction center of PSIIwas damaged and pathway of photosynthetic electron transport was inhibited in eggplant seedlings under NaCl stress.

Key words: NaCl stress, Eggplant seedlings, Chlorophyll fluorescence parameters, Excitation energy dissipation

CLC Number:

S641.1

WU Xue-xia, ZHA Ding-shi. Effects of NaCl Stress on Chlorophyll Fluorescence Parameters and Excitation Energy Dissipation in Leaves of Eggplant Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(6): 83-87. doi: 10.7668/hbnxb.2009.06.017.

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References

[1] Zhu J K.Plant salt tolerance[J].Trends in Plant Science,2001,6(2):66-71.
[2] 史庆华,朱祝军,Khalida AI-aghabary,等.等渗 Ca(NO3)2和 NaCl胁迫对番茄光合作用的影响[J].植物营养与肥料学报,2004,10(2):188-191.
[3] 李鹏民,高辉远,Reto J S.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学报,2005,31(6):559-566.
[4] Massacci A,Lannelli M A,Pietrini F,et al.The effect of growth at low temperature on photosynthetic characteristics and mechanisms of photoprotection of Maize leaves[J].J Exp Bot,1995,46:119-127.
[5] 胡春梅,侯喜林,王曼.低温胁迫对不结球白菜光合及叶绿素荧光特性的影响[J].西北植物学报,2008,28 (12):2478-2484.
[6] 赖齐贤,包志毅,朱祝军,等.干旱胁迫对转基因 (PSAG12-ipt) 非洲菊光合作用的影响[J].园艺学报,2007,34(1):157-162.
[7] 冯蕾,白志英,路丙社,等.氯化钠胁迫对枳和皂荚生长、叶绿素荧光及活性氧代谢的影响[J].应用生态学报,2008,19(11):2503-2508.
[8] 朱进,别之龙.盐胁迫对3种黄瓜砧木幼苗光合特性的影响[J].园艺学报,2007,34(6):1418-1424.
[9] 魏国强,朱祝军,方学智,等.NaCl 胁迫对不同品种黄瓜幼苗生长、叶绿素荧光特性和活性氧代谢的影响[J].中国农业科学,2004,37(11):1754-1759.
[10] Demmig-Adams B,Adams W W III,Barker D H.Using chlorophyll fluorescence to assess the fraction of absorbed light allocated to thermal dissipation of excess excitation[J].Physiol Plant,1996,98:253-264.
[11] Van Kooten O,Snel J F H.The use of chlorophyll fluorescence nomenclature in plant stress physiology[J].Photosyn Res,1990,25:147-150.
[12] Xu C C,Zhang J H.Effect of drought on chlorophyll fluorescence and xanthophyll cycle components in winter wheat leaves with different ages[J].Acta Phytophysiologica Sinica,1999,25:29-37.
[13] 徐凯,郭延平,张上隆.草莓叶片光合作用对强光的响应及其机理研究[J].应用生态学报,2005,16(1):73-78.
[14] 李青云,葛会波,胡淑明,等.外源钙对盐胁迫下草莓叶绿素荧光参数的影响[J].沈阳农业大学学报,2006,37(3):482-484.
[15] Carrasco R M,Rodriguez J S,Perez P.Changes in chlorophyll fluorescence during the course of photoperiod and in response to drought in Casuarina equiseti folia Forst and Forst[J].Photosynthetica,2002,40 (3):363-368.
[16] 葛江丽,石雷,谷卫彬,等.盐胁迫条件下甜高粱幼苗的光合特性及光系统Ⅱ功能调节[J].作物学报,2007,33(8):1272-1278.
[17] Havaux M,Strasser R J,Greppin H.Atheoretical and experimental analysis of the qP and qN coefficients of chlorophyll fluorescence quenching and their relation to photochemical land non photochemical event[J].Photosynthesis Res,1991,27:41-45.
[18] Krause G H,Weis E.Chlorophyll fluorescence and photosynthesis:the basics[J].Ann Rev Plant Physiol Plant Mol,1991,43:633-662.
[19] 薛延丰,刘兆普.钙离子对盐胁迫下菊芋幼苗的生长、生理反应和光合能力的影响理论[J].农业工程学报,2006,22 (9):44-47.

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