Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 31300100 |
| 共生对爪哇伪枝藻抵御荒漠胁迫能力的影响机理 | |
| 吴丽 | |
| 主持机构 | 武汉理工大学 |
| 开始日期 | 2014 |
| 结束日期 | 2016 |
| 资助经费 | 230000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | Biological soil crusts (BSCs) have important ecological functions, such as avoiding soil erosion and fertilizing soil, and these functions will be gradually improved with succession. Symbiosis is one of the important factors that accelerate BSCs succession. Free-living filamentous Scytonema javanitum not only colonizes the early stage as the pioneer species, but also dominates the later stage as the photoboint of lichens. Two different living forms, free-living and symbiotic S. javanicum, will be studied in this project. Under the indoor simulated conditions, the effects of desert stresses on photosynthetic system structures and their activities, the efficiency of antioxidant system and the accumulation of secondary metabolites will be well studied, using multiple technologies, such as in vivo chlorophyll fluorescence, 77K low temperature detection and HPLC technology, aiming at comparing the abilities in resisting desiccation, high visible radiance and UV radiance between free-living and symbiotic S. javanicum. These results will not only reveal the effect mechanism of symbiosis on the adaption ability of S. javanicum to desert stresses, uncoving the successional mechanism of BSCs from the perspective of cyanobacterial environment adaption, but also provide important theory foundation for the usage of BSCs in desertification control. |
| 中文关键词 | 生物结皮 ; 共生关系 ; 荒漠胁迫 |
| 来源机构 | 武汉理工大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346622 |
| 推荐引用方式 GB/T 7714 | 吴丽.共生对爪哇伪枝藻抵御荒漠胁迫能力的影响机理.2014. |
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