Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 31370159 |
| 短命植物抱茎独行菜内生菌多样性与共生抗旱研究 | |
| 安登第 | |
| 主持机构 | 新疆师范大学 |
| 开始日期 | 2014 |
| 结束日期 | 2014 |
| 资助经费 | 150000(CNY) |
| 项目类别 | 面上项目 |
| 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 | Ephemeral plant, a kind of plant that has a very short life cycle, was a special species for desert ecosystems with their highly on growth rate, photosynthetic and reproduction efficiency. Endophytes, a specific group of microorganisms that colonize healthy plant tissue intercellularly and/or intracellularly without causing any apparent symptoms of disease, has been shown to increase resistance against biotic and abiotic stresses, growth enhancing and health promoting in most plants. The endophytes also play significance effects on seed production and vigour. The results of our previous study indicated that the strains isolated from surface-sterilized desert plants have higher tolerance on salt and pH than others. The microbial communities of each plant were different but some strains, based on molecular analysis, appeared in other plants. Another study has also showed that the drought stress have been released or removed when endobacteria has been inoculated. For the purpose to understand the species specificity, symbiotic tolerance on drought, and the diversity of the endophyte in desert plant, Lepidium perfoliatum L. of genus Lepidium, family Cruciferae, one important traditional chinese medicine and wildly spread ephemeral specie, be selected to analyses the distribution and community of the endopgytes and symbiosis resistance. The samples, including seed, leaves, stems and roots from the southern edge of the Gurbantunggut desert, will be surface sterilized and grinded with PBS by sterilizated mortar and pestle and series diluted. The dilution will be spraided on medium plate and the endophytic bacterial would be isolated and purified. Then the surface and /or deep sterilized seeds would germinate with or without inoculation with the isolates. The influence with or without inoculation on seed germination would be estimated. The resultes will indicated that the endophytes, differentiate with cultured or uncultured, has mutualistic effects on resistance against environment stresses or the life cycle mediation. That will helpful for our understanding the adaptation of the plants on the desert. And this will also lay a foundation for the application of microorganisms on desert ecosystems protection and restoration. |
| 中文关键词 | 生态适应 ; 短命植物 ; 共生抗干旱 ; 内生菌 ; 多样性 |
| 来源机构 | 新疆师范大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/345566 |
| 推荐引用方式 GB/T 7714 | 安登第.短命植物抱茎独行菜内生菌多样性与共生抗旱研究.2014. |
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