Genomic Analysis of Cadmium-Resistant and Plant Growth-Promoting Burkholderia alba Isolated from Plant Rhizosphere
文献类型： 外文期刊
作者： Feng, Luyao 1 ; Liu, Xin 1 ; Wang, Nan 2 ; Shi, Zhuli 1 ; Wang, Yu 1 ; Jia, Jianpeng 1 ; Shi, Zhufeng 2 ; Pu, Te 2 ; Yang, Peiwen 2 ;
作者机构： 1.Yunnan Univ, Sch Agr, Kunming 650500, Peoples R China
2.Yunnan Acad Agr Sci, Inst Agr Environm & Resources, Kunming 650204, Peoples R China
3.Chongqing Three Gorges Acad Agr Sci, Chongqing 404155, Peoples R China
关键词：
期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）
ISSN：
年卷期： 2025 年 15 卷 8 期
页码：
收录情况： SCI
摘要： Reducing the application of chemical fertilizers and remediating heavy metal pollution in soil are important directions in current agricultural research. Utilizing the plant-growth-promoting and remediation capabilities of bacteria can provide more environmentally friendly assistance to agricultural production. In this study, the Burkholderia alba YIM B08401 strain was isolated and identified from rhizospheric soil, subjected to whole-genome sequencing and analysis, and its Cd2+ adsorption efficiency and characteristics were confirmed using multiple experimental methods, including atomic absorption spectrometry (AAS), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS). The results showed that the genome of strain YIM B08401 has a total length of 7,322,157 bp, a GC content of 66.39%, and predicts 6504 protein-coding sequences. It contains abundant functional genes related to nutrient conversion (phosphate solubilization, sulfur metabolism, zinc solubilization, siderophore production), plant hormone regulation (indole-3-acetic acid secretion, ACC deaminase production), phenolic acid degradation, root colonization, heavy metal tolerance, pathogen antagonism, and the production of antagonistic secondary metabolites. Additionally, strain YIM B08401 can specifically bind to Cd2+ through various functional groups on the cell surface, such as C-O-C, P=O, and O-H, enabling biosorption. In conclusion, strain YIM B08401 is an excellent strain with plant-growth-promoting, disease-resistant, and bioremediation capabilities, warranting further development as a biofertilizer for agricultural applications to promote green and sustainable agricultural development.
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