Department of Plant Sciences, University of California-Davis, CA 95616, USA.
Curr Opin Plant Biol. 2011 Jun;14(3):290-5. doi: 10.1016/j.pbi.2011.02.001. Epub 2011 Mar 4.
Plant hormones play central roles in the ability of plants to adapt to changing environments, by mediating growth, development, nutrient allocation, and source/sink transitions. Although ABA is the most studied stress-responsive hormone, the role of cytokinins, brassinosteroids, and auxins during environmental stress is emerging. Recent evidence indicated that plant hormones are involved in multiple processes. Cross-talk between the different plant hormones results in synergetic or antagonic interactions that play crucial roles in response of plants to abiotic stress. The characterization of the molecular mechanisms regulating hormone synthesis, signaling, and action are facilitating the modification of hormone biosynthetic pathways for the generation of transgenic crop plants with enhanced abiotic stress tolerance.
植物激素在植物适应不断变化的环境的能力中起着核心作用，通过调节生长、发育、养分分配和源/库转变。虽然 ABA 是研究最多的应激响应激素，但细胞分裂素、油菜素内酯和生长素在环境胁迫下的作用正在显现。最近的证据表明，植物激素参与了多个过程。不同植物激素之间的串扰导致协同或拮抗相互作用，在植物对非生物胁迫的反应中起着至关重要的作用。调节激素合成、信号转导和作用的分子机制的特征分析，正在促进激素生物合成途径的修饰，从而产生具有增强非生物胁迫耐受性的转基因作物植物。
