干旱胁迫下4种报春苣苔属植物叶绿素荧光特性的比较

doi:10.15933/j.cnki.1004-3268.2020.09.016

河南农业科学 ›› 2020, Vol. 49 ›› Issue (9): 129-135.DOI: 10.15933/j.cnki.1004-3268.2020.09.016

干旱胁迫下4种报春苣苔属植物叶绿素荧光特性的比较

史莹莹^1,2,3,4，何栋^1,2,3,4，姚晓妍^1,2,3,4，罗乐^1,2,3,4，张启翔^1,2,3,4

（1.花卉种质创新与分子育种北京市重点实验室，北京 100083；2.国家花卉工程技术研究中心，北京 100083；3.城乡生态环境北京实验室，北京 100083；4.北京林业大学园林学院，北京 100083）

收稿日期:2020-04-23 出版日期:2020-09-15 发布日期:2020-09-15
通讯作者: 罗乐（1983-），男，广西桂林人，副教授，博士，主要从事植物资源评价与创新研究。E-mail:luolebjfu@163.com
作者简介:史莹莹（1993-），女，山西晋城人，在读硕士研究生，研究方向：园林植物应用。E-mail:2572331569@qq.com
基金资助:
中央高校基本科研业务费专项资金（2015ZCQ-YL-03）；北京林业大学高精尖建设项目（2020年）

Comparison on Chlorophyll Fluorescence Characteristics of Four Species of Primulina under Drought Stress

SHI Yingying^1,2,3,4,HE Dong^1,2,3,4,YAO Xiaoyan^1,2,3,4,LUO Le^1,2,3,4,ZHANG Qixiang^1,2,3,4

(1.Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding,Beijing 100083,China;2.National Engineering Research Center for Floriculture,Beijing 100083,China;3.Beijing Laboratory of Urban and Rural Ecological Environment,Beijing 100083,China; 4.College of Landscape Architecture,Beijing Forestry University,Beijing 100083,China)

Received:2020-04-23 Published:2020-09-15 Online:2020-09-15

摘要/Abstract

摘要： 以尖萼报春苣苔（Primulina pungentisepala）、永福报春苣苔（Primulina yungfuensis）、翔鸟报春苣苔(Primulina‘Flying Wings’)和启明星报春苣苔(Primulina‘Venus’ ) 4种报春苣苔属植物为研究对象，采用盆栽自然干旱法比较干旱胁迫下叶绿素荧光参数的变化。结果表明，随着干旱时间延长，仅尖萼报春苣苔干旱30 d时初始荧光（Fo）显著降低，其他3种植物Fo无显著变化。尖萼报春苣苔、翔鸟报春苣苔和启明星报春苣苔最大荧光（Fm）与0 d相比均无显著变化，而永福报春苣苔Fm则在干旱45 d显著低于0 d。最大光化学效率（Fv/Fm）基本呈先升高后降低的趋势，尖萼报春苣苔和翔鸟报春苣苔分别在干旱30 d和15 d显著上升，启明星报春苣苔在干旱45 d显著下降。相对光合电子传递速率（ETR）基本呈先降低后升高再降低的趋势，永福报春苣苔、翔鸟报春苣苔与启明星报春苣苔均在干旱15 d与45 d显著下降，而尖萼报春苣苔在干旱15 d与30 d显著下降。非光化学淬灭（NPQ）呈先升高后降低或先升高后降低再升高的趋势，尖萼报春苣苔在干旱15 d和30 d显著上升，干旱45 d则显著下降，永福报春苣苔在不同干旱时间内均显著上升，翔鸟和启明星报春苣苔仅在干旱15 d与45 d显著上升。光化学淬灭（qP）的变化趋势中，尖萼报春苣苔与永福报春苣苔无显著变化，翔鸟报春苣苔和启明星报春苣苔则呈先降低后升高再降低的趋势。

关键词: 干旱胁迫, 报春苣苔属, 叶绿素荧光参数, 尖萼报春苣苔, 永福报春苣苔, 翔鸟报春苣苔, 启明星报春苣苔

Abstract: Based on potted natural drought method,the study discussed the response mechanisms of plant chlorophyll fluorescence parameters on drought stress with P.pungentisepala,P.yungfuensis,P.‘Flying Wings’and P.‘Venus’ as materials.The results showed that with the extension of drought time,the minimal fluorescence(Fo) of P.pungentisepala was decreased significantly on 30 d after drought stress,while those of the other three kinds varied insignificantly.The maximal fluorescence(Fm) of P.pungentisepal,P.‘Flying Wings’ and P.‘Venus’ were not obvious compared with 0 d,and that of P.yungfuensis was significantly lower than 0 d on 45 d after drought stress.The maximum photochemical efficiency(Fv/Fm)basically showed a trend of first increasing and then decreasing,P.pungentisepala increased significantly on 30 d after drought stress,and P.‘Flying Wings’ increased significantly on 15 d after drought stress,P.‘Venus’ significantly decreased on 45 d after drought stress.The electron transport rate(ETR) mainly decreased first,then increased,and then decreased again,P.yungfuensis,P.‘Flying Wings’and P.‘Venus’all decreased significantly on 15 d and 45 d after drought stress,and yet P.pungentisepala decreased significantly on 15 d and 30 d after drought stress.The non-photochemical quenching(NPQ) showed a trend of first increasing and then decreasing or a trend of first increasing and then decreasing and yet rising,P.pungentisepala rose signifiantly on 15 d and 30 d after drought stress,yet decreased on 45 d after drought stress,P.yungfuensis significantly increased in different drought periods,P.‘Flying Wings’ and P.‘Venus’ significantly increased on 15 d and 45 d after drought stress.The photochemical quenching(qP) changes of P.pungentisepala and P.yungfuensis were not significant in different drought periods,whereas P.‘Flying Wings’ and P.‘Venus’ first decreased,then increased and then decreased.

Key words: Drought stress, Primulina, Chlorophyll fluorescence parameters, Primulina pungentisepala, Primulina yungfuensis, Primulina‘Flying Wings’, Primulina‘Venus’

中图分类号:

S652.9

史莹莹, 何栋, 姚晓妍, 罗乐, 张启翔. 干旱胁迫下4种报春苣苔属植物叶绿素荧光特性的比较[J]. 河南农业科学, 2020, 49(9): 129-135.

SHI Yingying, HE Dong, YAO Xiaoyan, LUO Le, ZHANG Qixiang. Comparison on Chlorophyll Fluorescence Characteristics of Four Species of Primulina under Drought Stress[J]. Journal of Henan Agricultural Sciences, 2020, 49(9): 129-135.

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干旱胁迫下4种报春苣苔属植物叶绿素荧光特性的比较

Comparison on Chlorophyll Fluorescence Characteristics of Four Species of Primulina under Drought Stress

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