文献类型： 外文期刊
作者： Liu, Zhibin 1 ; Xia, Qini 1 ; Cai, Jing 2 ; Wang, Ziyuan 1 ; Yang, Kexin 1 ; Chen, Dixu 1 ; Wei, Jiahong 1 ; Chen, Cun 3 ; Liu, Chao 4 ; Chang, Wei 6 ; Li, Zhi 6 ; Li, Xufeng 1 ; Yang, Yi 1 ; Yang, Liang 6 ; Tan, Xiao 4 ;
作者机构： 1.Sichuan Univ, Coll Life Sci, Key Lab Bioresource & Ecoenvironm, Minist Educ, Chengdu 610064, Sichuan, Peoples R China
2.Sichuan Univ, West China Sch Pharm, Chengdu 610041, Sichuan, Peoples R China
3.Chengdu Normal Univ, Coll Chem & Life Sci, Chengdu 611130, Sichuan, Peoples R China
4.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China
5.Sichuan Univ, Coll Water Resource & Hydropower, Chengdu 610065, Sichuan, Peoples R China
6.Sichuan Acad Agr Sci, Hort Res Inst, Vegetable Germplasm Innovat & Variety Improvement, Chengdu 610066, Peoples R China
关键词： microbial hitchhiking; rhizosphere bacteria; nitrogen fertilizer; Bacillus
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）
ISSN： 0021-8561
年卷期： 2024 年 72 卷 9 期
页码：
收录情况： SCI
摘要： The phenomenon of microbial hitchhiking, where nonmotile microbes utilize transspecies motility to navigate within their environment, has been observed. However, the underlying factors driving microbial hitchhiking remain unclear. Our study explored how nitrogen fertilizers affect microbial hitchhiking in soil through an in situ planting experiment. We established twelve treatments encompassing the presence and absence of plants, the presence and absence of a filter membrane that is used to prevent hitchhiking, and three nitrogen levels. Results showed that nitrogen influenced bacterial diversity in all soils, an effect thwarted by filter membranes. In the presence of plants, nitrogen significantly affected the bacterial mobility, Bacillus abundance, and plant biomass, but these effects vanished when filters were used. The correlation between motile Bacillus and rhizosphere bacteria was strong without filters at the proper nitrogen levels but weakened with membrane treatments. Thus, plants and nitrogen together, not nitrogen alone, alter the soil microbiome via hitchhiking.
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