Application of Synthetic Microbial Communities of Kalidium schrenkianum in Enhancing Wheat Salt Stress Tolerance
文献类型： 外文期刊
作者： Zhu, Jing 1 ; Jia, Qiong 1 ; Tang, Qi-Yong 1 ; Osman, Ghenijan 1 ; Gu, Mei-Ying 1 ; Wang, Ning 1 ; Zhang, Zhi-Dong 1 ;
作者机构： 1.Xinjiang Acad Agr Sci, Inst Microbiol, Xinjiang Key Lab Special Environm Microbiol, Urumqi 830091, Peoples R China
关键词：
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2025 年 26 卷 2 期
页码：
收录情况： SCI
摘要： Soil salinization poses a significant challenge to global agriculture, particularly in arid and semi-arid regions like Xinjiang. Kalidium schrenkianum, a halophytic plant adapted to saline-alkaline conditions, harbors endophytic microorganisms with potential plant growth-promoting properties. In this study, 177 endophytic bacterial strains were isolated from K. schrenkianum, and 11 key strains were identified through functional screening based on salt tolerance, nutrient solubilization, and growth-promoting traits. Synthetic microbial communities (SMCs) were then constructed using these strains and optimized to enhance wheat growth under salt stress. The SMCs significantly improved seed germination, root length, and seedling vigor in both spring and winter wheat in hydroponic and pot experiments. Furthermore, the SMCs enhanced the activities of antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and levels of malondialdehyde (MDA) and proline (PRO). They also reduced oxidative stress and improved chlorophyll content in wheat seedlings. These results demonstrate the potential of microbial consortia derived from extreme environments as eco-friendly biofertilizers for improving crop performance in saline soils, offering a sustainable alternative to chemical fertilizers and contributing to agricultural resilience and productivity.
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