Effects of UV-B, water deficit and their combination on Bryum argenteum plants
文献类型：期刊论文
| 作者 | Hui, R.1; Zhao, R.2; Liu, L.1; Zhu, R.1; Li, G.1; Wei, Y.3 |
| 刊名 | RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 63期号:2页码:216-223 |
| ISSN号 | 1021-4437 |
| 关键词 | Bryum argenteum biological soil crusts (BSCs) combined stress chlorophyll fluorescence photosynthetic pigments ultraviolet-B (UV-B) water-deficit |
| DOI | 10.1134/S1021443716020084 |
| 通讯作者 | Hui, R.(huirong850623@163.com) |
| 英文摘要 | The changes in climate can result in several environmental stress factors. Among these, ultraviolet- B (UV-B) and water-deficit have serious detrimental effects on plants at the physiological, morphological, and biochemical levels. Biological soil crusts (BSCs), formed by an association between soil particles and photosynthetic algae, cyanobacteria, lichens, and mosses in varying proportions, are a key functional feature of arid and semi-arid areas. In this study, Bryum argenteum, isolated from BSCs found in the Tengger Desert, China, was subjected to UV-B and water-deficit, singly and in combination, in a greenhouse for 10 days. The treatments consisted of four UV-B levels (2.75, 3.08, 3.25, and 3.41 W/m(2)) and two water application levels (well-watered and water-deficit). UV-B treatment and water-deficit singly caused a significant decrease in chlorophyll (Chl) fluorescence parameters, carotenoid (Car), total flavonoid contents, and a significant increase in MDA content. The combined application of UV-B and water-deficit produced significantly higher Chl fluorescence parameters, Chl, Car and total flavonoid contents, but reduced MDA content. These results suggest that water-deficit alleviates the negative effects on B. argenteum caused by enhanced UV-B radiation. Our results provide novel insights into understanding the relationships between BSCs and environmental factors, and supply a theoretical foundation for BSC assessment and protection in arid and semi-arid regions. |
| 收录类别 | SCI |
| WOS关键词 | BIOLOGICAL SOIL CRUSTS ; CHLOROPHYLL FLUORESCENCE ; DROUGHT STRESS ; SECONDARY METABOLITES ; LIPID-PEROXIDATION ; FIELD CONDITIONS ; NORTHERN CHINA ; TENGGER DESERT ; PHOTOSYSTEM-II ; ELEVATED CO2 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | MAIK NAUKA/INTERPERIODICA/SPRINGER |
| WOS记录号 | WOS:000374107600005 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557286 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Hui, R. |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou, Gansu, Peoples R China 2.Lanzhou Univ, Sch Life Sci, Lanzhou 730000, Peoples R China 3.Univ Melbourne, Parkville, Vic 3052, Australia |
| 推荐引用方式 GB/T 7714 | Hui, R.,Zhao, R.,Liu, L.,et al. Effects of UV-B, water deficit and their combination on Bryum argenteum plants[J]. RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,2016,63(2):216-223. |
| APA | Hui, R.,Zhao, R.,Liu, L.,Zhu, R.,Li, G.,&Wei, Y..(2016).Effects of UV-B, water deficit and their combination on Bryum argenteum plants.RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,63(2),216-223. |
| MLA | Hui, R.,et al."Effects of UV-B, water deficit and their combination on Bryum argenteum plants".RUSSIAN JOURNAL OF PLANT PHYSIOLOGY 63.2(2016):216-223. |
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来源：寒区旱区环境与工程研究所
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