CONTROL OF PIGMENT BIOSYNTHESIS GENES DURING PETAL DEVELOPMENT
CONTROL OF PIGMENT BIOSYNTHESIS GENES DURING PETAL DEVELOPMENT
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DOI：
10.1105/tpc.5.10.1253
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发表时间：
1993-10-01
期刊：
影响因子：
11.6
通讯作者：
GERATS, T
中科院分区：
文献类型：
--
作者：
MARTIN, C;GERATS, T
开花植物的有性繁殖依赖于花的唤醒，花一般由四个器官轮生组成：花冠、花瓣、花药和雌蕊。萼片和花瓣可以看作是最初的保护器官。在花发育的第一阶段，花药和雌蕊发生减数分裂，而这些器官仍然被萼片包围。花瓣是花分生组织第二轮的器官，在减数分裂结束时开始发育。它们的生长与花药花丝和雌蕊茎的形成相一致。最后，在花朵成熟的过程中，花瓣展开，在昆虫或鸟类授粉的植物中发挥第二种功能：它们的颜色是吸引传粉者的闪光信号，它们的结构是着陆的地方。在这里，我们将描述花瓣发育的一个方面，即颜色基因的协调表达，这些基因的组合活动产生吸引传粉者到花上的视觉信号。
Sexual reproduction in flowering plants depends on the evocation of flowers, which, in general, consist of four whorls of organs: sepals, petals, anthers, and pistil. Sepals and petals can be regarded as initially protective organs. During the first stage of floral development, meiosis occurs in the anthers and the pistil while these organs are still enclosed by the sepals. Petals, the organs of the second whorl of the floral meristem, start developing toward the end of meiosis. Their growth coincides with the formation of the anther filaments and the stem of the pistil. Finally, during flower maturation, the petals unfold to perform asecond function in plants pollinated by insects or birds: their color serves as a flash signal to attract pollinators, and their structure serves as a landing place. Here, we will describe one aspect of petal development, the coordinated expression of the color genes whose combined activities produce the visual signals that attract pollinators to flowers.