REN Shaohua,LI Yuanyuan,ZOU Jun,et al.Influence of High Temperature Stress on Chlorophyll Fluorescence Parameters in Four Kinds of Orchidaceae[J].Northern Horticulture,2017,41(12):70-74.[doi:10.11937/bfyy.201712018]
高温胁迫对四种兰科植物叶绿素荧光参数的影响
- Title:
- Influence of High Temperature Stress on Chlorophyll Fluorescence Parameters in Four Kinds of Orchidaceae
- 文献标志码:
- A
- 摘要:
- 以硬叶兜兰、白芨、春兰、球花石斛为试材，研究了高温胁迫对这4种兰科植物叶绿素荧光参数的影响，以期为兰科植物保育和栽培提供科学依据。结果表明：在45 ℃高温胁迫下，硬叶兜兰、白芨、春兰、球花石斛4种兰科植物随着胁迫时间的延长，Fv/Fm和Yield值都不断下降。硬叶兜兰Fv/Fm和Yield值下降较缓慢，其次是球花石斛，最后是春兰和白芨。通过叶绿素荧光参数与胁迫时间相关性分析可得，4种兰科植物的Fv/Fm、Yield值和胁迫时间存在显著负相关和极显著负相关性，硬叶兜兰、白芨、春兰的Fv/Fm、Yield值和胁迫时间存在极显著负相关（P<0.01)，球花石斛的Fv/Fm、Yield值和胁迫时间存在显著负相关（P<0.05)，连续的高温胁迫会使兰科植物的光合机构受到严重损伤。
- Abstract:
- With Paphiopedilum micranthum，Bletilla striata,Cymbidium goeringii,Dendrobium thyrsiflorum as test materials，the effects of high temperature stress on the chlorophyll fluorescence parameters of 4 kinds of Orchidaceae were studied，in order to provide a scientific basis for conservation and cultivation of Orchidaceae.The results showed that，under high temperature stress in the 45 ℃,the 4 kinds of Orchidaceae Fv/Fm and Yield values decreased，with the extension of stress time.Paphiopedilum micranthum Fv/Fm and Yield decreased more slowly，followed by Dendrobium thyrsiflorum，finally was Cymbidium goeringii and Bletilla striata.Via chlorophyll fluorescence parameters and stress time correlation analysis，between Paphiopedilum micranthum, Bletilla striata,Cymbidium goeringii’ Fv/Fm,Yield value and stress time，had negative significant correlation (P<0.01)，Dendrobium thyrsiflorum Fv/Fm，Yield value and the stress time had negative significant correlation (P<0.05)，Orchidaceae photosynthetic mechanism was severely damaged with the continuous time high temperature stress.
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备注/Memo
第一作者简介：任少华（1984-），女，河北冀州人，本科，研究实习员，现主要从事植物资源等研究工作。E-mail：851744162@qq.com.责任作者：周庆（1962-），男，本科，研究员，现主要从事植物资源等研究工作。E-mail：zhq079@163.com.基金项目：贵州省科学技术基金资助项目（黔科合J字[2012]2265号）；贵州省社会发展科技攻关计划资助项目（黔科合SY字[2015]3019号，黔科合SY字[2013]3150号，黔科合SY[2012]3177号）。