生长素结合蛋白研究进展

Recent Advances in Auxin-binding Proteins

植物细胞信号转导分子机制:植物个体以细胞为单位感受并传递各种环境刺激(如干旱、高盐、养分亏缺等)并做出适当的反应以维持其生存。植物细胞能够识别、感受各种不同的内外源刺激信号,并进而通过一定的分子机制将所识别和感知的信号传递及转化成一定的生理生化效应。因此,深入地探讨细胞及分子水平的信号转导机制是阐明植物整体水平信息传递以及对环境胁迫的适应机制的基础。近10a来,随着植物生理学、细胞生物学、遗传学、发育生物学、分子生物学等的交叉渗透,在细胞及分子水平阐明各种内外源刺激信号调控细胞生理生化活动的分子作用机制(即细胞信号转导机制)的研究已成为植物科学基础理论研究的前沿领域。近年来随着植物分子生物学及生物化学的发展,生长素结合蛋白(ABP)、输出载体基因的克隆及其作用机理、生长素响应基因等方面的研究得到较大的进展使得在分子和细胞水平上研究生长素的作用机理成为可能。下面将就生长素结合蛋白的研究进展作一介绍。

Plant cells'signal transduction is that every plant cell can focus and transport environ-mental stress,such as drought,high salinity or inadequate mineral nutrients in soil and do some suitable reaction to rnaintain their living.Plants and plant cells may recognize and receive different stimuli (including external and internal),and they continually respond to signals,thus altering their physiology,morphology and development.Therefore,such important fundamentals should help to elucidate the signing mechanisms by which plant cells cope with the stress situations.In this decade,the plant physiology,the cell biology,the genentics,the molecular biology and so on were so much improved and linked,people could elucidate the signal transduction on cell-level.Recent years of studies on auxin-binding proteins,transformation vectors clone,auxin receptor gene have gained the development which could help to expound auxin function mechanism on cell-level and molecular-level.