植物开花是一个非常复杂的过程,对其机理的研究有着重要的实践意义和理论意义。近百年来进行了广泛的生理生化研究,提出过多种假设。自90年代初成功分离了花器官分化和发育基因以来,使这一研究领域进入了分子水平。钙不仅是植物的矿质营养元素之一,而且Ca~(2+)作为植物的第二信使,参与细胞内多种生理生化活动。许多研究结果表明,Ca~(2+)在成花诱导、花芽形成和分化过程中起重要作用,我们自建立黄瓜子叶培养物离 Plant flowering is a very complex process, and its research on the mechanism has important practical and theoretical significance. Nearly a hundred years a wide range of physiological and biochemical studies, made a variety of assumptions. Since the early 90’s the successful isolation of flower organ differentiation and development has led the field to molecular level. Calcium is not only one of the plant’s mineral nutrients, but also Ca 2+ acts as a second messenger of plants and participates in various physiological and biochemical activities in the cell. Many studies have shown that Ca ~ (2+) plays an important role in induction of flower formation, flower bud formation and differentiation. We established self-established cucumber cotyledon culture