Eco-physhilogical basis of the alternative respiration in crops

研究了交替呼吸途径在作物生产中的作用，建立了以O187判别法为基础的反应速率测定体系，并对交替呼吸途径的基因表达进行了研究，结果表明交替呼吸途径的反应速率随着生育期的延长而增加，表明交替呼吸途径在作物生长后期的生产中具有重要作用。结果表明，籽粒灌浆期交替途径对作物碳经济有显著贡献，但并不局限于生长旺盛的幼龄阶段。阐明了交替氧化酶(AOX)基因表达的调控机制。通过比较AOX和蛋白质的合成。为了了解交替途径在作物生产中的关键作用，基于O18鉴别方法和AOX基因表达的仔细检查是必不可少的。

The role of alteranative respiration pathway in crop production was studies by establishing the system to measure the reaction rate based on the O187 discrimination method as well as the gene expression of alternative oxidase.The reaction rate of alternative pathway increased with growth stage indicating the significant role in crop production toward the end of growth. The significant contribution of alternative pathway on carbon economy during grain filling period in grain crops was suggeted although it is not limiting to the growth in the actively growing younger growth stages. The regulation mechanism of alternative oxidase (AOX) gene expression was elucidated. Through the compariso and protein synthesis of AOX. To know the critical role of alternative pathway on crop production, the careful examination based on O18 discrimination methd and gene expression of AOX is indispensable.