Simultaneous Boosting of Plant Growth and Immunity by Bacillus volatiles Through GLK-Mediated Enhancement of Chloroplast Functions
文献类型： 外文期刊
作者： Li, Ronghui 1 ; Sun, Li 1 ; Gao, Chenming 1 ; Hou, Junxiang 1 ; Feng, He 1 ; Zhao, Qiuyuan 1 ; Wu, Mingde 1 ; Zhang, Jing 1 ; Zhou, Guangsheng 3 ; Tsuda, Kenichi 1 ; Wei, Yangdou 5 ; Li, Guoqing 1 ; Yang, Long 1 ;
作者机构： 1.Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan, Peoples R China
2.Huazhong Agr Univ, Hubei Key Lab Plant Pathol, Wuhan, Peoples R China
3.Huazhong Agr Univ, MOA Key Lab Crop Ecophysiol & Farming Syst Middle, Wuhan, Peoples R China
4.Hubei Hongshan Lab, Wuhan, Peoples R China
5.Univ Saskatchewan, Dept Biol, Saskatoon, SK, Canada
6.Huazhong Agr Univ, Shenzhen Inst Nutr & Hlth, Wuhan, Peoples R China
7.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Guangdong Lab Lingnan Modern Agr, Shenzhen Branch,Genome Anal Lab,Minist Educ, Shenzhen, Peoples R China
关键词： Bacillus velezensis; jasmonic acid; photosynthesis; plant growth-promotion; plant immunity; volatile organic compounds
期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：6.3； 五年影响因子：7.7 ）
ISSN： 0140-7791
年卷期： 2025 年
页码：
收录情况： SCI
摘要： Microbial volatile organic compounds (mVOCs) offer significant benefits to plants, such as promoting growth and activating immune responses, positioning them as promising tools for crop productivity. However, the mechanisms driving mVOCs-mediated plant growth promotion (PGP) and immunity remain unclear. Here, we demonstrated that VOCs produced by the rapeseed (Brassica napus)-derived endophyte Bacillus velezensis CanL-30 (BvVOCs) simultaneously stimulate PGP and immunity in both Arabidopsis thaliana and rapeseed under controlled and field conditions. Gas chromatography-mass spectrometry analysis revealed that 2-heptanone and 2-nonanone in BvVOCs exhibit plant-growth-promoting activity, whereas decane and undecane possess disease resistance-inducing activity in plants. Using metabolomics and transcriptomics, along with genetic and chemical methodologies, we reveal that BvVOCs enhance photosynthetic capacity to promote growth, while jasmonic acid-dependent signalling underpins immunity activation. Furthermore, light intensity significantly influenced BvVOCs effects on PGP and immunity. Crucially, BvVOCs upregulate expression of the GOLDEN2-LIKE (GLK) transcription factors GLK1 and GLK2, and BvVOCs-driven PGP and immunity were lost in glk1glk2 double mutant plants. These findings clarify the molecular basis of Bacillus-based VOCs in boosting growth and disease resistance, underscoring their potential for sustainable pest management in agriculture.
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