Plants face a constantly changing environment,requiring fine tuning of their growth and development.Plants have therefore developed numerous mechanisms to cope with environmental stress conditions.One striking exam-pl...Plants face a constantly changing environment,requiring fine tuning of their growth and development.Plants have therefore developed numerous mechanisms to cope with environmental stress conditions.One striking exam-ple is root response to water deficit.Upon drought(which causes osmotic stress to cells),plants can among other responses alter locally their root system architecture(hydropatterning)or orientate their root growth to optimize water uptake(hydrotropism).They can also modify their hydraulic properties,metabolism and development coordi-nately at the whole root and plant levels.Upstream of these developmental and physiological changes,plant roots must perceive and transduce signals for water availability.Here,we review current knowledge on plant osmotic per-ception and discuss how long distance signaling can play a role in signal integration,leading to the great phenotypic plasticity of roots and plant development.展开更多
基金supported in part by the Agence Nationale de la Recherche(ANR-19-CE20-0008-01)the European Research Council(ERC)under the European Union’s Horizon 2020 research and innovation programme(Grant Agreement ERC-2017-ADG-788553).
文摘Plants face a constantly changing environment,requiring fine tuning of their growth and development.Plants have therefore developed numerous mechanisms to cope with environmental stress conditions.One striking exam-ple is root response to water deficit.Upon drought(which causes osmotic stress to cells),plants can among other responses alter locally their root system architecture(hydropatterning)or orientate their root growth to optimize water uptake(hydrotropism).They can also modify their hydraulic properties,metabolism and development coordi-nately at the whole root and plant levels.Upstream of these developmental and physiological changes,plant roots must perceive and transduce signals for water availability.Here,we review current knowledge on plant osmotic per-ception and discuss how long distance signaling can play a role in signal integration,leading to the great phenotypic plasticity of roots and plant development.
