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《科学》 第393卷 第6807期 · 2026年7月9日 · 中文解读

根系通过感知局部pH梯度绕开腐烂区域

Roots navigate around decay regions by sensing local pH gradients · Z. Bao et al.
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这篇讲什么
本文报道了植物根系的一种新向性——腐生向性,即根系通过感知真菌分解植物残体产生的酸性pH梯度,主动弯曲避开腐烂区域。
原文开头
Full article and list of author affiliations: https://doi.org/10.1126/ science.adw6568 Zhulatai Bao†, Huihui Wang†, Ai Zhang, Ruxi Gao, Wen Gu, Ni Fan, Jiří Friml, Yuzhou Zhang* INTRODUCTION: Plants grow in complex and heterogeneous soil environments, where roots must anchor the plant, acquire water and nutrients, and cope with environmental stresses. To navigate such environments, plants have evolved tropisms, directional growth responses to environmental stimuli. Classical tropisms described since Darwin’s time are primarily driven by abiotic cues, such as gravity, light, water, and salinity. However, soil is also a biologically dynamic ecosystem shaped by shifting microbial communities. Microbial decay of dead plant material is ubiquitous in soils and drives decomposition and nutrient recycling, creating localized decay zones with intense microbial activity. …
摘自《科学》(Science)第393卷 第6807期 · 2026年7月9日,Z. Bao et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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