Abstract：
Pollen grains of flowering plants display a fascinating diversity of forms. The observed diversity is determined by the developmental mechanisms involved in the establishment of pollen morphological features. Pollen grains are generally surrounded by an extremely resistant wall displaying apertures that play a key role in reproduction, being the places at which pollen tube growth is initiated. Aperture number, structure, and position (collectively termed \'aperture pattern\') are determined during microsporogenesis, which is the earliest step of pollen ontogeny. Here, we review current knowledge about aperture pattern developmental mechanisms and adaptive significance with respect to plant reproduction and how advances in these fields shed light on our understanding of aperture pattern evolution in angiosperms.
摘要：
开花植物的花粉颗粒显示出迷人的多样性。观察到的多样性取决于花粉形态特征建立中涉及的发育机制。花粉粒通常被极具抵抗力的墙壁包围，显示出在繁殖中起关键作用的孔，是花粉管开始生长的地方。孔径数,结构,和位置(统称为“孔径模式”)在微孢子发生期间确定，这是花粉个体发育的最早步骤。这里,我们回顾了有关植物繁殖的孔径模式发育机制和适应性意义的最新知识，以及这些领域的进展如何为我们对被子植物孔径模式进化的理解提供了启示。
