Physiology of flower initiation
Physiology of flower initiation
复制标题
花萌生的生理学
DOI：
10.1007/978-3-642-50088-6_39
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发表时间：
1965
影响因子：
20.5
通讯作者：
A. Lang
中科院分区：
文献类型：
--
作者：
A. Lang
花的发生标志着种子植物从营养生长向生殖生长的转变。因此，这是这些植物生命中的一个关键事件，特别是因为种子植物中营养和生殖发育的特殊关系，而这种关系又是花的形态性质的结果。花是由变异的茎分生组织（花原基）产生的变异的茎。然而，一旦分生组织被确定为花原基，它通常不能-除了可能在最早的阶段-恢复到营养生长。因此，种子植物的营养生长和生殖发育在某种意义上是相互排斥的;就一个特定的分生组织而言，花的发生意味着它生命的结束。花发生生理学的核心问题是了解哪些因素导致茎分生组织成为花原基，以及它们如何完善它们的作用。
Flower initiation marks the transition from vegetative to reproductive growth in seed plants. It is thus a crucial event in the life of these plants, particularly so because of the peculiar relation of vegetative and reproductive development in seed plants which is in turn an outcome of the morphological nature of the flower. Flowers are modified shoots which are produced by modified shoot meristems, the flower primordia. However, once a meristem has been determined as a flower primordium, it is usually unable — except perhaps at the very earliest stages — of reverting to vegetative growth. Vegetative growth and reproductive development in seed plants are thus in a certain sense mutually exclusive; as far as a particular meristem is concerned, flower initiation means the end of its life. The central problem of the physiology of flower initiation is to understand which factors cause a shoot meristem to become a flower primordium, and how they consummate their action.