Aperture pattern ontogeny in angiosperms
Aperture pattern ontogeny in angiosperms
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DOI：
10.1002/jez.10150
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发表时间：
2002-08-15
影响因子：
--
通讯作者：
Gouyon, PH
中科院分区：
文献类型：
--
作者：
Ressayre, A;Godelle, B;Gouyon, PH
被子植物花粉粒在孔数和排列方式上有很大的差异。气孔是花粉壁表面的界限分明的区域，允许花粉管萌发。对于低孔径数，孔径模式是被子植物主要分类学划分的特征。本文提出了一个发展模式，解释了大多数的光圈模式，记录在被子植物。它是基于减数分裂过程中发生的不同事件的分析，并导致小孢子分化。这表明被子植物减数分裂过程中发生的变异足以产生最常见的花粉形态的核心形态集。(C)2002 Wiley-Liss，Inc.
Pollen grains display a wide range of variation in aperture number and arrangement (pattern) in angiosperms. Apertures are well-defined areas of the pollen wall surface that permit pollen tube germination. For low aperture numbers, aperture patterns are characteristic of the major taxonomic divisions of angiosperms. This paper presents a developmental model that explains most of the aperture patterns that are recorded in angiosperms. It is based on the analysis of the different events that occur during meiosis and lead to microspore differentiation. It demonstrates that variation occurring during meiosis in angiosperms is sufficient to produce the core morphological set of the most commonly observed pollen morphologies. (C) 2002 Wiley-Liss, Inc.