3种浮水植物叶绿素荧光特性的比较研究

广西师范大学学报（自然科学版） ›› 2012, Vol. 30 ›› Issue (3): 252-256.

3种浮水植物叶绿素荧光特性的比较研究

梁士楚^1,2, 李凤¹, 田华丽¹, 巫文香¹, 杨晨玲¹, 黄安书¹

1.广西师范大学生命科学学院,广西桂林541004;
2.珍稀濒危动植物生态与环境保护省部共建教育部重点实验室,广西桂林541004

收稿日期:2012-05-30 出版日期:2012-09-20 发布日期:2018-12-04
通讯作者: 梁士楚(1965—),男,广西百色人,广西师范大学教授。E-mail:gxlsc@sina.com
作者简介:梁士楚,广西百色市人,教授,博士,硕士研究生导师。
基金资助:
国家科技支撑计划课题基金资助项目(2012BAC16B03);广西自然科学基金重点资助项目(桂科自0991022Z)

Comparative Study on Chlorophyll Fluorescence Characteristics of Three Species of Floating Plants

LIANG Shi-chu^1,2, LI Feng¹, TIAN Hua-li¹, WU Wen-xiang¹, YANG Chen-ling¹, HUANG An-shu¹

1.College of Life Sciences,Guangxi Normal University,GuilinGuangxi 541004,China;
2.Key Laboratory of Ecology of Rare and Endangered Species and Environmental ProtectionGuangxi Normal University,Ministry of Education,Guilin Guangxi 541004,China

Received:2012-05-30 Online:2012-09-20 Published:2018-12-04

摘要/Abstract

摘要： 对桂林市会仙喀斯特湿地3种主要浮水植物水龙Ludwigia adscendens、凤眼蓝Eichhornia crassipes、水花生Alternanthera philoxeroides的叶绿素荧光特性进行研究,结果表明:水龙、凤眼蓝、水花生的PSⅡ最大光化学量子产量F_v/F_m均大于0.8;在光诱导过程中,凤眼蓝和水花生的PSⅡ实际量子产量Y、相对电子传递速率rETR、光化学淬灭系数qP和非光化学淬灭系数NPQ达到稳定状态比水龙的快,而水龙的NPQ变化曲线没有呈现稳定状态;经过暗适应或者光适应后,凤眼蓝、水花生的最大相对电子传递速率rETR_max、半饱和光强E_k、初始斜率α都明显比水龙的大。

关键词: 叶绿素荧光, 诱导曲线, 快速光曲线, 浮水植物

Abstract: The characteristics of chlorophyll fluorescence of three main floatingplants,Ludwigia adscendens,Eichhornia crassipes and Alternanthera philoxeroides,in the karst wetland of Huixian Town of Guilin City were studied.The maximalquantum yield values of photosystemⅡ(F_v/F_m) of these species werelarger than0.8.During the light-induced process,the actual quantum yield (Y),relativeelectron transport rate (rETR),photochemical quenching coefficient (qP) and non-photochemical quenching coefficient (NPQ) of E.crassipes and A.philoxeroides reached steady state faster than those of L.adscendens,while the NPQ curve of L.adscendens did not display steady state.After dark or light adaptation,the maximal relative electron transport rate (rETRmax),half-saturation light intensity (E_k) and initial slope (α) of E.crassipes and A.philoxeroides were larger than those of L.adscendens.

Key words: chlorophyll fluorescence, induction curve, rapid lightcurve, floating plant

中图分类号:

Q948.8

梁士楚, 李凤, 田华丽, 巫文香, 杨晨玲, 黄安书. 3种浮水植物叶绿素荧光特性的比较研究[J]. 广西师范大学学报（自然科学版）, 2012, 30(3): 252-256.

LIANG Shi-chu, LI Feng, TIAN Hua-li, WU Wen-xiang, YANG Chen-ling, HUANG An-shu. Comparative Study on Chlorophyll Fluorescence Characteristics of Three Species of Floating Plants[J]. Journal of Guangxi Normal University(Natural Science Edition), 2012, 30(3): 252-256.

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