Sequential Pathways of Anther Dehiscence in Sesbania speciosa

Abstract

The mechanism of anther dehiscence in Sesbania speciosa was followed using light and scanning electron microscopic techniques. The following sequence of events occur (i) Epidermis and endothecium expand, (ii) Branched wall thickenings occur only in the endothecium cells, (iii) Septum cells dissociate, (iv) Tapeta of two adjacent locules lyse due to pressure exerted by pollen grains.(v) Stomium ruptures due to the pressure exerted by the desiccating endothecium.