盐胁迫下植物的分子信号传导
Plant signal transduction under salt stress
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摘要: 盐胁迫下,植物体内的离子浓度和渗透压发生变化,诱导其产生第二信使(如IP3和活性氧分子等).第二信使调控细胞内Ca2 的水平,引发蛋白磷酸化级联反应,直接诱导或间接由转录因子诱导盐胁迫相关基因的表达,最终植物体表现耐受胁迫、生长受阻或死亡.Abstract: The fluctuation of ion concentration and osmosis is induced by salt stress, followed by the generation of second messengers (e.g., IP3 and reactive oxygen species). Second messengers can modulate intracellular Ca2+ levels, and initiate a protein phosphorylation cascade that finally aims at proteins directly involved in cellular protection or transcription factors controlling specific sets of stress-regulated genes.
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Keywords:
- salt stress /
- signal transduction
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