Auxin secreted by root-associated bacteria promotes plant growth, yet benefits to bacteria themselves are ill-defined. In this issue of Cell Host & Microbe, Tzipilevich et al. (2021) demonstrate that auxin and plant EFR-triggered response are essential for root colonization of B. velezensis, indicating potential co-evolution of plants and root commensal bacteria.

中文翻译：

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坚持你：细菌生长素介导的植物根部细菌定植

根相关细菌分泌的生长素促进植物生长，但对细菌本身的益处尚不清楚。在本期Cell Host & Microbe 中，Tzipilevich 等人。(2021) 证明生长素和植物 EFR 触发的反应对于B. velezensis 的根定植至关重要，表明植物和根共生细菌的潜在共同进化。