Rhizosphere modelling reveals spatiotemporal distribution of daidzein shaping soybean rhizosphere bacterial community

• DOI: 10.1111/pce.13708
• Publication Date: 2019-12-25T07:01:29Z
• Authors: Fuki Okutani; Shoichiro Hamamoto; Yuichi Aoki; Masaru Nakayasu; Naoto Nihei; Taku Nishimura; Kazufumi Yazaki; Akifumi Sugiyama
• Keywords: 0301 basic medicine; 2. Zero hunger; Glycine max; advection-diffusion equation; 15. Life on land; bacterial communities; Isoflavones; Models, Biological; Plant Roots; 03 medical and health sciences; rhizosphere modelling; Rhizosphere; Soil Microbiology

Plant roots nurture a wide variety of microbes via exudation metabolites, shaping the rhizosphere's microbial community. Despite importance plant specialized metabolites in assemblage and function communities rhizosphere, little is known how far effects these extend through soil. We employed fluid model to simulate spatiotemporal distribution daidzein, an isoflavone secreted from soybean roots, validated using soybeans grown rhizobox. then analysed daidzein affects bacterial soils artificially treated with daidzein. Simulation showed that it was only present within few millimetres root surfaces. After 14 days rhizobox, 2 mm Soils different concentrations community composition, reduced α-diversity daidzein-treated soils. Bacterial were closer those rhizosphere than bulk This study highlighted limited surfaces demonstrated novel role assembling by acting as more repellant attractant.