Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/j.1399-3054.2012.01679.x |
Responses of photosynthetic properties and chloroplast ultrastructure of Bryum argenteum from a desert biological soil crust to elevated ultraviolet-B radiation | |
Hui, Rong1,2; Li, Xinrong1,2; Chen, Cuiyun1,2; Zhao, Xin1,2; Jia, Rongliang1,2; Liu, Lichao1,2; Wei, Yongping3 | |
通讯作者 | Li, Xinrong |
来源期刊 | PHYSIOLOGIA PLANTARUM |
ISSN | 0031-9317 |
出版年 | 2013 |
卷号 | 147期号:4页码:489-501 |
英文摘要 | Our understanding of plant responses to enhanced ultraviolet-B (UV-B) radiation has improved over recent decades. However, research on cryptogams is scarce and it remains controversial whether UV-B radiation causes changes in physiology related to photosynthesis. To investigate the effects of supplementary UV-B radiation on photosynthesis and chloroplast ultrastructure in Bryum argenteum Hedw., specimens were cultured for 10days under four UV-B treatments (2.75, 3.08, 3.25 and 3.41Wm2), simulating depletion of 0% (control), 6%, 9% and 12% of stratospheric ozone at the latitude of Shapotou, a temperate desert area of northwest China. Analyses showed malondialdehyde content significantly increased, whereas chlorophyll (Chl) fluorescence parameters and Chl contents decreased with increased UV-B intensity. These results corresponded with changes in thylakoid protein complexes and chloroplast ultrastructure. Overall, enhanced UV-B radiation leads to significant decreases in photosynthetic function and serious destruction of the chloroplast ultrastructure of B. argenteum. The degree of negative influences increased with the intensity of UV-B radiation. These results may not only provide a potential mechanism for supplemental UV-B effects on photosynthesis of moss crust, but also establish a theoretical basis for further studies of adaptation and response mechanisms of desert ecosystems under future ozone depletion. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000316622600008 |
WOS关键词 | CYANOBACTERIUM MICROCOLEUS-VAGINATUS ; STRATOSPHERIC OZONE DEPLETION ; UNCINATA HEDW. LOESKE ; ENHANCED UV-B ; TENGGER DESERT ; PHOTOSYSTEM-II ; PHYSIOLOGICAL-RESPONSES ; NORTHERN CHINA ; CHLOROPHYLL FLUORESCENCE ; TERRESTRIAL ECOSYSTEMS |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | 中国科学院西北生态环境资源研究院 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179231 |
作者单位 | 1.Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China; 2.Chinese Acad Sci, Extreme Stress Resistance & Biotechnol Lab, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China; 3.Univ Melbourne, Australia China Ctr Water Resource Res, Parkville, Vic 3010, Australia |
推荐引用方式 GB/T 7714 | Hui, Rong,Li, Xinrong,Chen, Cuiyun,et al. Responses of photosynthetic properties and chloroplast ultrastructure of Bryum argenteum from a desert biological soil crust to elevated ultraviolet-B radiation[J]. 中国科学院西北生态环境资源研究院,2013,147(4):489-501. |
APA | Hui, Rong.,Li, Xinrong.,Chen, Cuiyun.,Zhao, Xin.,Jia, Rongliang.,...&Wei, Yongping.(2013).Responses of photosynthetic properties and chloroplast ultrastructure of Bryum argenteum from a desert biological soil crust to elevated ultraviolet-B radiation.PHYSIOLOGIA PLANTARUM,147(4),489-501. |
MLA | Hui, Rong,et al."Responses of photosynthetic properties and chloroplast ultrastructure of Bryum argenteum from a desert biological soil crust to elevated ultraviolet-B radiation".PHYSIOLOGIA PLANTARUM 147.4(2013):489-501. |
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