Background and Aims Early developmental events in microsporogenesis are known to play
a role in pollen morphology: variation in cytokinesis type, cell wall formation, tetrad shape …

Pollen grains are produced during meiosis (microsporogenesis), in the anthers of flower
buds. Apertures are usually formed at the last points of contact between the microspores …

Pollen morphology has been extensively studied in the Arecaceae, and pollen aperture
organization is usually distal monosulcate, as in many monocot families. Much is known …

Abstract Background and Aims Microsporogenesis leading to monosulcate pollen grains
has already been described for a wide range of monocot species. However, a detailed study …

• Premise of the study: Pollen grains of flowering plants display a fascinating diversity of
forms, in spite of their minute size. The observed diversity is determined by the …

Although the pollen grains produced in monocots are predominantly monosulcate (or
monoporate), other aperture types are also found within this taxonomic group, such as the …

Abstract Background and Aims In flowering plants, microsporogenesis is accompanied by
various types of cytoplasmic partitioning (cytokinesis). Patterns of male cytokinesis are …

Anther and pollen development in staminate and pistillate flowers of dioecious Melicoccus
lepidopetalus (Sapindaceae) were examined by light and electron microscopy. Young …

Alismatales are a key clade in monocot evolution, as they are sister to all other monocots,
excluding Acorales. However, phylogenetic relationships within the order are poorly …

This paper presents the first broad overview of three main features of microsporogenesis
(male meiosis) in angiosperms: cytokinesis (cell division), intersporal wall formation, and …