PHOTOSYNTHETIC AND PHYSIOLOGICAL RESPONSES OF SWIDA HEMSLEYI (CK SCHNEID. ET WANGERIN) SOJAK (CORNACEAE) SUBJECTED TO ENHANCED UV-B RADIATION AND TO NITROGEN SUPPLY
文献类型：期刊论文
| 作者 | Yao, Xiaoqin1,2; Liu, Qing1 |
| 刊名 | POLISH JOURNAL OF ECOLOGY
 |
| 出版日期 | 2009 |
| 卷号 | 57期号:3页码:483-494 |
| ISSN号 | 1505-2249 |
| 关键词 | enhanced UV-B chlorophyll pigment nitrogen supply photosynthesis proline reactive oxygen species |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Atmospheric ozone remains depleted which in turn leads to the increase of UV-B radiation reaching the surface of the earth and in the same time more and more nitrogen will be imported into the terrestrial ecosystems through nitrogen deposition. These two factors will operate simultaneously. The photosynthetic and physiological responses of deciduous broad leaved species Swida hemsleyi occurring commonly at 1350-3700 m a.s.l. subjected to enhanced UV-B and to nitrogen supply were studied. The experimental design included two levels of UV-B treatments (ambient UV-B, 11.02 KJ m(-2) day(-1) and enhanced UV-B, 14.33 KJ m(-2) day(-1)) and two nitrogen levels (without supplemental nitrogen supply and with supplemental nitrogen supply). An experiment was conducted in open semi-field condition in Maoxian Ecological Station of Chinese Academy of Sciences, Sichuan province, China at 1820 in a.s.l. Enhanced UV-B caused a marked decline in growth parameters, net photosynthetic rate, stomatal conductance to water vapour, chlorophyll pigments, whereas it induced an increase in rate of reactive oxygen species (ROS) production and ROS accumulation and malondialdehyde (MDA) content. Enhanced UV-B also induced an increase in leaf thickness and antioxidant compounds content, such as carotenoids and proline content. On the other hand, nitrogen supply caused an increase in some growth parameters, chlorophyll pigments and antioxidant compounds, and reduced ROS accumulation. However, nitrogen supply did not affect MDA content under enhanced UV-B, though it increased antioxidant compounds content and reduced the rate of ROS production and ROS accumulation. These results implied that enhanced UV-B brought harmful effects on Swida hemsleyi seedlings and supplemental nitrogen supply could alleviate the adverse effects of UV-B radiation on plants to some extent. |
| 学科主题 | Environment/ecology |
| URL标识 | 查看原文 |
| WOS关键词 | ULTRAVIOLET-B ; PROLINE ; GROWTH ; PLANTS ; SEEDLINGS ; STRESS ; LEAVES ; CAROTENOIDS ; SALINITY ; DROUGHT |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | POLISH ACAD SCIENCES INST ECOLOGY |
| WOS记录号 | WOS:000270012200006 |
| 源URL | [http://210.75.237.14/handle/351003/29940]  |
| 专题 | 生物多样性与生态系统服务领域_生态研究 |
| 通讯作者 | Liu, Qing |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China; 2.Hebei Univ, Coll Life Sci, Baoding 071002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Xiaoqin,Liu, Qing. PHOTOSYNTHETIC AND PHYSIOLOGICAL RESPONSES OF SWIDA HEMSLEYI (CK SCHNEID. ET WANGERIN) SOJAK (CORNACEAE) SUBJECTED TO ENHANCED UV-B RADIATION AND TO NITROGEN SUPPLY[J]. POLISH JOURNAL OF ECOLOGY,2009,57(3):483-494. |
| APA | Yao, Xiaoqin,&Liu, Qing.(2009).PHOTOSYNTHETIC AND PHYSIOLOGICAL RESPONSES OF SWIDA HEMSLEYI (CK SCHNEID. ET WANGERIN) SOJAK (CORNACEAE) SUBJECTED TO ENHANCED UV-B RADIATION AND TO NITROGEN SUPPLY.POLISH JOURNAL OF ECOLOGY,57(3),483-494. |
| MLA | Yao, Xiaoqin,et al."PHOTOSYNTHETIC AND PHYSIOLOGICAL RESPONSES OF SWIDA HEMSLEYI (CK SCHNEID. ET WANGERIN) SOJAK (CORNACEAE) SUBJECTED TO ENHANCED UV-B RADIATION AND TO NITROGEN SUPPLY".POLISH JOURNAL OF ECOLOGY 57.3(2009):483-494. |
入库方式： OAI收割
来源：成都生物研究所
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