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 …

Microsporogenesis and male gametogenesis of Jatropha curcas L.(Euphorbiaceae) was
studied in order to provide additional data on this poorly studied family. Male flowers of J …

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

Although much attention has been paid to the role of stabilizing selection, empirical
analyses testing the role of developmental constraints in evolutionary stasis remain rare …

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 Citrus Huanglongbing, associated with Candidatus Liberibacter asiaticus (Las), is
the serious disease of citrus worldwide. Here, we compared differences between leaf and …

To date, the effect of habitat conditions on the characteristics of pollen has not been
extensively investigated; however, it needs to be remembered that it may be highly …

In basal angiosperms, there are several types of permanent tetrad but their formation pattern
remains elusive. Pseuduvaria trimera has five types of tetrads and is the species with the …

Background and Aims The phylogenetic affinities of the aberrant monotypic genus
Duparquetia (subfamily Caesalpinioideae) are at present unresolved. Preliminary results …

Micro-and megasporogenesis as well as male and female gametogenesis in genus
Agapanthus are reported for the first time. The results are as follows: The anther wall, whose …