文献类型：期刊文献

中文题名：班克木幼苗的光合色素及叶绿素荧光特性

英文题名：Photosynthetic pigments and chlorophyll fl uorescent characteristics of 17 provenances of Banksia seedlings

作者：杜鹏珍[1] 廖绍波[1] 孙冰[1] 陈勇[1] 罗水兴[1] 陈雷[1] 黄应锋[1]

第一作者：杜鹏珍

机构：[1]中国林业科学研究院热带林业研究所

年份：2014

卷号：34

期号：9

起止页码：49-54

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金：国家948引进项目:班克木属高效防护与鲜切花树种及培育技术引进(2011-4-40)

语种：中文

中文关键词：班克木幼苗;种源;光合色素;叶绿素荧光,快速光响应曲线

外文关键词：Banksiaseedling;provenance;photosynthetic pigments;chlorophyllfluorescence;rapid light curve

分类号：S718.43

摘要：以4个种17个种源班克木的幼苗为材料进行试验,研究其光合色素含量、叶绿素荧光参数和光响应特征。结果表明:香花班克木的叶绿素a(Chl a)和类胡萝卜素(Car)含量以及叶绿素a与b的比值(Chla/Chlb)最大,其叶绿素与类胡萝卜素的比值(Chl/Car)最小,其种源38505的光合色素含量最高;强力班克木和香花班克木PSII的潜在活性(Fv/Fo)和原初光能转化效率(Fv/Fm)显著高于其它2个种;强力班克木的PSII中心非环式电子传递量子产额(AYII)、光合电子传递速率(RETR)和光化学猝灭系数(CqP)均最大;相对电子传递速率(rETR)的光响应曲线拟合结果显示,强力班克木的最大相对电子传递速率(Pm)和光量子利用效率(α)均显著高于其它种,且以35224种源为最高,表现出良好的光合生理功能。研究结果为班克木优良种质的选育提供了科学依据。
The response of photosynthetic characteristics were investigated for seedlings of four species and their 17 provenances in genusBanksia at aspects of photosynthetic pigments contents, chlorophyllfluorescence parameters and photo response characteristics. The results show that Chla and Car contents and Chla/Chlb ofBanksia aemula seedlings were the highest, but their ratio of Chl and Car was the smallest among four species, and contents of all photosynthetic pigments of provenance No. 38505 were the highest in this species; the potential activity of PSII （Fv/Fo） and light conversion efifciency （Fv/Fm） ofB. robur and B. aemula were signiifcantly higher than those of other two species; and actual quantum yield of photosystemII （AYI）, electron translation rate（RETR） and the coefifcient of photochemical fluorescence quenching（CqP） ofB. robur were the highest. The fitted parameters from rapid light curves showed that the maximum relative electron transfer rate（rETR）and light quantum efifciency （α） ofB. robur were signiifcantly higher than other species, and the provenance No. 35224 performed best with great photosynthetic physiological function. Theifndings provide scientiifc evidences for selecting and breeding of prior germplasm of genusBanksia.