细菌与拟南芥之间的互利互作促进磷营养吸收和生长发育
细菌与拟南芥之间的互利互作促进磷营养吸收和生长发育
作者： 小柯机器人 发布时间：2026/8/19 15:09:59
本期文章：《细胞》：Online/在线发表
中国科学院遗传与发育生物学研究所周俭民团队的一项最新研究，探明了细菌和拟南芥之间的互利相互作用促进了磷营养吸收和生长。相关论文于2026年8月18日发表于国际顶尖学术期刊《细胞》杂志上。
研究人员对根细菌微生物组成员进行了分析，发现其中许多可能与拟南芥合作，促进幼苗磷营养吸收和生长。深入分析揭示了拟南芥和不动杆菌在缺磷期间的复杂相互作用。缺磷的根分泌的苹果酸盐不是直接参与磷的开采，而是作为一种求救信号，将细菌招募到根际，在根际，不动杆菌采用一种互惠的生活方式，利用宿主来源的营养物质来机械地调动植物通常无法获得的磷。根面是植物和细菌获取磷的热点，而不是周围空间。这种相互作用发生在细菌群落和缺磷土壤中。他们的工作揭示了细菌和非菌根植物之间促进磷营养的互惠策略。
研究人员表示，目前尚不清楚植物是否与任何细菌建立了互惠关系来应对磷(P)限制。
附：英文原文
Title: Mutually beneficial interactions between bacteria and Arabidopsis promote phosphorus nutrition and growth
Author: Yongjin Wang, Chulei Gao, Fang Liu, Yiheng Liu, Zhaoyang Zhou, Qi Wang, Fengxia Zhang, Hangyuan Cheng, Xinwei Jiang, Wei Wang, Binglei Wang, Yuanjie Tang, Feng Zhou, Guodong Wang, Yi-Ping Wang, Weicai Yang, Paul Schulze-Lefert, Dong Liu, Yang Bai, Jian-Min Zhou
Issue&Volume: 2026-08-18
Abstract: It remains unknown whether plants establish mutualistic relationships with any bacteria to cope with phosphorus (P) limitation. We characterized root-bacterial microbiome members to show that many of them may cooperate with Arabidopsis to promote seedling P nutrition and growth. In-depth analyses uncovered an intricate interaction between Arabidopsis and Acinetobacter bacteria during P deficiency. Instead of a direct role in P-mining, malate secreted by P-deprived roots acts as a call-for-help signal that recruits bacteria to the rhizoplane, where Acinetobacter adopt a mutualistic lifestyle and utilize host-derived nutrients to robustly mobilize P normally inaccessible to plants. The rhizoplane, but not the surrounding space, served as a hotspot for P acquisition by both plants and bacteria. The interaction occurred in the context of a bacterial community and in P-impoverished soil. Our work reveals a mutualistic strategy between bacteria and a non-mycorrhizal plant that promotes P nutrition.
DOI: 10.1016/j.cell.2026.07.048
Source: https://www.cell.com/cell/abstract/S0092-8674(26)00917-7