Uv light spectral response of photosynthetic photochemical efficiency in alpine mosses
文献类型：期刊论文
| 作者 | Ren, Wei1; Tan, Hongchao1; Wu, Jing1; Deng, Yongcui1; Wu, Yibo1; Tang, Yanhong2; Cui, Xiaoyong1 |
| 刊名 | Journal of plant ecology
 |
| 出版日期 | 2010-03-01 |
| 卷号 | 3期号:1页码:17-24 |
| 关键词 | Action spectrum Bryophyte Ozone Tibetan plateau Ultraviolet radiation |
| ISSN号 | 1752-9921 |
| DOI | 10.1093/jpe/rtp029 |
| 通讯作者 | Cui, xiaoyong() |
| 英文摘要 | Aims bryophytes play an important role in primary production in harsh alpine environment as other alpine plants, the alpine bryophytes are often exposed to stronger uv radiation than lowland plants plants growing under high uv radiation may differ from those from low uv regimes in their physiological response to uv radiation we were to (i) test the hypothesis and to address whether and/or how alpine bryophytes differ in photosynthetic photochemical characteristics in response to uv light and (ii) understand the potential effects of uv radiation on photosynthetic photochemical process in alpine bryophytes methods we examined the maximum quantum efficiency of photosystem ii (psii) photochemistry (f root f-m) for two alpine bryophyte species, distichium inclinatum and encalypta alpine, from a kobresia humilis meadow and a kobresia tibetica wetland, respectively, in haibei, qinghai (37 degrees 29'n, 101 degrees 12'e, altitude 3 250 ml), and for a lowland bryophyte, polytrichum juniperinum, under different spectrum of uv light biological spectral weighting function (bswf) was obtained to evaluate the effect of uv light on the physiological response in these species important findings 1) the maximum quantum efficiency of photosystem ii photochemistry (f root f-m) declined linearly with the increase of radiation dose in wavelenghts from 250 to 420 nm. the effect of uv radiation on f root f-m decreased with higher rate from 250 to 320 nm an from 400 to 420 nm than in uva range 2) the three species from different ecosystems contrasting in altitudes showed similar pattern of uv effectiveness in comparison with other species reported so far, the moss bswf was among those with the most modest decrease trend with spectrum effect of uv light 50 times higher at 250 than at 420 nm 3) under the scenario of 16% reduction of stratospheric ozone, the integrated effectiveness from 290 to 345 nm increased only 5%, suggesting that the photochemical activity of the bryophyte psii is likely to insensitive to o-3 depletion |
| WOS关键词 | ULTRAVIOLET-B RADIATION ; QINGHAI-TIBETAN PLATEAU ; OZONE DEPLETION ; CHLOROPHYLL FLUORESCENCE ; DNA-DAMAGE ; HIGHER-PLANTS ; MARINE-PHYTOPLANKTON ; STRATOSPHERIC OZONE ; WEIGHTING FUNCTION ; XANTHOPHYLL CYCLE |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| WOS类目 | Plant Sciences ; Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000275660300003 |
| 出版者 | OXFORD UNIV PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2414561 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Cui, Xiaoyong |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Natl Inst Environm Studies, Tsukuba, Ibaraki 3050053, Japan |
| 推荐引用方式 GB/T 7714 | Ren, Wei,Tan, Hongchao,Wu, Jing,et al. Uv light spectral response of photosynthetic photochemical efficiency in alpine mosses[J]. Journal of plant ecology,2010,3(1):17-24. |
| APA | Ren, Wei.,Tan, Hongchao.,Wu, Jing.,Deng, Yongcui.,Wu, Yibo.,...&Cui, Xiaoyong.(2010).Uv light spectral response of photosynthetic photochemical efficiency in alpine mosses.Journal of plant ecology,3(1),17-24. |
| MLA | Ren, Wei,et al."Uv light spectral response of photosynthetic photochemical efficiency in alpine mosses".Journal of plant ecology 3.1(2010):17-24. |
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来源：中国科学院大学
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