植物内生细菌与植物形成和谐联合关系。极端环境中的植物具有特殊类群的内生细菌，与植物适应极端环境密切相关。目前对盐渍生境植物内细菌的研究局限于滨海湿润区的少数几种植物，而对干旱区盐渍生境植物内生细菌相关研究开展较少。新疆盐渍生境明显区别于滨海盐渍生境，并且盐生植物丰富，是干旱区盐渍化生境中生长的特殊自然植被。新疆多样性的盐生植物可能存在多样的内生细菌，其分布可能与盐生植物适应不同盐渍生境有关。本研究以生长在同一盐渍生境中不同种盐生植物和不同盐渍生境中同一种盐生植物为研究对象，采用传统的分离培养方法和分子生物学技术分析内生细菌群落在不同盐生植物宿主之间和不同盐渍生境之间分布异同，探讨其差异成因。项目预期将揭示内生细菌在不同盐生植物宿主和盐渍生境分布规律，研究结果有助于认知新疆盐生植物内生细菌微生态,促进盐生植物内生微生物资源开发利用，为推动盐生植物种植改良盐碱地提供科学依据。

There is a compatible association between endophytic bacteria and it`s host plants. Plants in the extreme environment of particular groups of endophytic bacteria, and plants adapt to extreme environments are closely related to the endophytic bacteria. Study on the endophytic bacteria of plants in saline habitat is confined to few plants in coastal humid areas, while little research has been carried out on endophytic bacteria of plants in saline habitat in arid region. Saline habitat in Xinjiang is significantly different from the coastal saline habitat, and halophytes as the special natural vegetation grown in the saline habitat in arid region. We conjecture that diversity halophytes in Xinjiang may be with a variety of endophytic bacteria, its distribution may be related to the halophytes adapt to the different saline environment. In this study, different species of halophytes grow in the same saline habitat and same species of halophyte grow in different saline environment were selected, by using traditional culture methods and molecular biology techniques, the distribution of endophytic bacteria communities between different halophytes host and different saline habitats were analysised, causes of their differences was explored.The project is expected to reveal the distribution law of endophytic bacteria in different halophytes host and different salinity habitat, the result will promote the cognition of microbial ecology and the utilization of endophytic microbial resources in halophytes in Xinjiang, and provide a scientific basis of saline-alkali soil improving by halophytes.