
Plant DELLAs Restrain Growth and Promote Survival of Adversity by Reducing the Levels of Reactive Oxygen Species
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学科领域 生物医药 » 生物学
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DELLA提高抗逆性
【原创】首先发现了DELLA在对植物生长发育的影响和耐盐性成相关性(相关系数),推测可能有共同的调节机制;为了研究这个机制,用GA突变体和DELLA突变体做了转录组分析,发现2.2%(540条)的基因在盐胁迫下的mRNA水平是依赖于DELLA元件的,又将这些基因与芯片数据(受盐,干旱,病原体影响)比对,发现其中126条基因是是和氧化胁迫相关的,在DELLA积累的植株中抗氧化系统的成分基因上调,并且受DELLA调控的基因大部分都是受到胁迫后呈现早期诱导或抑制表达,因此stress-induced DELLA accumulation activates a complex genetic regulation network to control in part the amount of ROS. |
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