Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/f9040176 |
Seasonal Changes in Photosynthetic Energy Utilization in a Desert Shrub (Artemisia ordosica Krasch.) during Its Different Phenophases | |
Ren, Cai1,2; Wu, Yajuan1,2; Zha, Tianshan1,2; Jia, Xin1,2; Tian, Yun2; Bai, Yujie2; Bourque, Charles P. -A.2,3; Ma, Jingyong2; Feng, Wei1,2 | |
通讯作者 | Zha, Tianshan |
来源期刊 | FORESTS |
ISSN | 1999-4907 |
出版年 | 2018 |
卷号 | 9期号:4 |
英文摘要 | Our understanding of the mechanisms of plant response to environment fluctuations during plants’ phenological phases (phenophases) remains incomplete. Continuous chlorophyll fluorescence (ChlF) measurements were acquired from the field to quantify the responses in a desert shrub species (i.e., Artemesia ordosica Krasch. (A. ordosica)) to environmental factors by assessing variation in several ChlF-linked parameters and to understand plant acclimation to environmental stresses. Maximal quantum yield of PSII photochemistry (F-v/F-m) was shown to be reduced by environmental stressors and to be positively correlated to air temperature (T-a) during the early and late plant-growing stages, indicating a low temperature-induced inhibition during the leaf expansion and coloration phases. Effective quantum yield of PSII photochemistry (Phi(PSII)) was negatively correlated to incident photosynthetically active radiation (PAR) irrespective of phenophase, suggesting excessive radiation-induced inhibition at all phenophases. The main mechanism for acclimating to environmental stress was the regulatory thermal dissipation (Phi(NPQ)) and the long-term regulation of relative changes in Chl a to Chl b. The relative changes in photosynthetic energy utilization and dissipation in energy partitioning meant A. ordosica could acclimatize dynamically to environmental changes. This mechanism may enable plants in arid and semi-arid environments to acclimatize to increasingly extreme environmental conditions under future projected climate change. |
英文关键词 | Artemisia ordosica chlorophyll fluorescence energy partitioning phenophase photoprotection |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000434856800020 |
WOS关键词 | CHLOROPHYLL-A FLUORESCENCE ; PHOTOSYSTEM-II ; HIGH-TEMPERATURE ; HIGH LIGHT ; PHOTOCHEMICAL EFFICIENCY ; ACCLIMATION ; STRESS ; PLANTS ; COLD ; DISSIPATION |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
来源机构 | 北京林业大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/209346 |
作者单位 | 1.Beijing Forestry Univ, Sch Soil & Water Conservat, Yanchi Res Stn, Beijing 100083, Peoples R China; 2.Beijing Forestry Univ, State Forestry Adm, Key Lab Soil & Water Conservat, Beijing 100083, Peoples R China; 3.Univ New Brunswick, Fac Forestry & Environm Management, 28 Dineen Dr,POB 4400, Fredericton, NB E3B 5A3, Canada |
推荐引用方式 GB/T 7714 | Ren, Cai,Wu, Yajuan,Zha, Tianshan,et al. Seasonal Changes in Photosynthetic Energy Utilization in a Desert Shrub (Artemisia ordosica Krasch.) during Its Different Phenophases[J]. 北京林业大学,2018,9(4). |
APA | Ren, Cai.,Wu, Yajuan.,Zha, Tianshan.,Jia, Xin.,Tian, Yun.,...&Feng, Wei.(2018).Seasonal Changes in Photosynthetic Energy Utilization in a Desert Shrub (Artemisia ordosica Krasch.) during Its Different Phenophases.FORESTS,9(4). |
MLA | Ren, Cai,et al."Seasonal Changes in Photosynthetic Energy Utilization in a Desert Shrub (Artemisia ordosica Krasch.) during Its Different Phenophases".FORESTS 9.4(2018). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。