Response of chlorophyll fluorescence to dynamic light in three alpine species differing in plant architecture
文献类型：期刊论文
| 作者 | Cui, Xiaoyong; Niu, Haishan; Wu, Jing; Gu, Song; Wang, Yanfen; Wang, Shiping; Zhao, Xinquan; Tang, Yanhong |
| 刊名 | environmental and experimental botany
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 58期号:1-3页码:149-157 |
| 关键词 | alpine herbs CO2 uptake energy utilization photoinhibition thermal dissipation |
| 合作状况 | 其它 |
| 中文摘要 | a study was carried out to examine the effect of dynamic photosynthetically active photon flux density (ppfd) on photoinhibition and energy use in three herbaceous species, prostrate saussurea superba, erect-leaved s. katochaete, and half-erect-leaved gentiana straminea, from the qinghai-tibet plateau. chlorophyll fluorescence response was measured under each of three sets of high-low ppfd combinations: 1700-0, 1400-300, and 1200-500 mu mol m(-2) s(-1), illuminating in four dynamic frequencies: 1, 5, 15, and 60 cycles per 2 h. the total light exposure time was 2h and the integrated ppfd was the same in all treatments. the highest frequency of ppfd fluctuation resulted in the lowest photochemical activity, the highest level of non-photochemical quenching, and the greatest decrease of f-v/f-m (maximal photochemical efficiency of psii). the 5 and 15 cycles per 2h treatments resulted in higher photochemical activity than the 1 cycle per 2h treatment. the 1700-0 ppfd combination led to the lowest photochemical activity and more serious photoinhibition in all species. s. superba usually exhibited the highest photochemical activity and co2 uptake rate, the lowest reduction of f-v/f-m,f- and the smallest fraction of energy in thermal dissipation. with similar fractions of thermal dissipation, s. katochaete had relatively less photoinhibition than g. straminea owing to effective f-o quenching. the results suggest that high frequency of fluctuating ppfd generally results in photoinhibition, which is more serious under periods of irradiation with high light intensity. (c) 2005 elsevier b.v. all rights reserved. |
| 英文摘要 | a study was carried out to examine the effect of dynamic photosynthetically active photon flux density (ppfd) on photoinhibition and energy use in three herbaceous species, prostrate saussurea superba, erect-leaved s. katochaete, and half-erect-leaved gentiana straminea, from the qinghai-tibet plateau. chlorophyll fluorescence response was measured under each of three sets of high-low ppfd combinations: 1700-0, 1400-300, and 1200-500 mu mol m(-2) s(-1), illuminating in four dynamic frequencies: 1, 5, 15, and 60 cycles per 2 h. the total light exposure time was 2h and the integrated ppfd was the same in all treatments. the highest frequency of ppfd fluctuation resulted in the lowest photochemical activity, the highest level of non-photochemical quenching, and the greatest decrease of f-v/f-m (maximal photochemical efficiency of psii). the 5 and 15 cycles per 2h treatments resulted in higher photochemical activity than the 1 cycle per 2h treatment. the 1700-0 ppfd combination led to the lowest photochemical activity and more serious photoinhibition in all species. s. superba usually exhibited the highest photochemical activity and co2 uptake rate, the lowest reduction of f-v/f-m,f- and the smallest fraction of energy in thermal dissipation. with similar fractions of thermal dissipation, s. katochaete had relatively less photoinhibition than g. straminea owing to effective f-o quenching. the results suggest that high frequency of fluctuating ppfd generally results in photoinhibition, which is more serious under periods of irradiation with high light intensity. (c) 2005 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 学科主题 | 植物学 |
| 类目[WOS] | plant sciences ; environmental sciences |
| 研究领域[WOS] | plant sciences ; environmental sciences & ecology |
| 关键词[WOS] | low-temperature photoinhibition ; tropical rain-forest ; photosystem-ii ; variable sunlight ; photosynthetic responses ; heteromeles-arbutifolia ; carbon gain ; leaves ; growth ; irradiance |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000240908600018 |
| 公开日期 | 2009-12-08 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1315]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810001, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan |
| 推荐引用方式 GB/T 7714 | Cui, Xiaoyong,Niu, Haishan,Wu, Jing,et al. Response of chlorophyll fluorescence to dynamic light in three alpine species differing in plant architecture[J]. environmental and experimental botany,2006,58(1-3):149-157. |
| APA | Cui, Xiaoyong.,Niu, Haishan.,Wu, Jing.,Gu, Song.,Wang, Yanfen.,...&Tang, Yanhong.(2006).Response of chlorophyll fluorescence to dynamic light in three alpine species differing in plant architecture.environmental and experimental botany,58(1-3),149-157. |
| MLA | Cui, Xiaoyong,et al."Response of chlorophyll fluorescence to dynamic light in three alpine species differing in plant architecture".environmental and experimental botany 58.1-3(2006):149-157. |
入库方式： OAI收割
来源：西北高原生物研究所
浏览0
下载0
收藏0
其他版本
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。