Diversidad de orbículas en Poaceae
Abstract
Orbicules diversity in Poaceae. Anthers of ten species of Poaceae from the province of Buenos Aires (Argentina) were investigated with scanning and transmission electron microscopes. The orbicules can be defined as corpuscles of variable size that show the same electron-density, reaction to the dyes, autofluorescence and resistance to acetolysis as pollen exine does. The orbicules are randomly dispersed on the inner anther locule and they are often attached to a tapetal membrane. In this study, four different types and four subtypes of orbicules were identified. We conclude that the different orbicules types described in this work are representative of the studied tribes, and we suggest that the orbicules morphology may be a useful character in systematic studies.
Fields of Study & Subjects
Plant Taxonomy and Phylogenetics
Botanical Research and Chemistry
Agronomic Practices and Intercropping Systems
Publication details
- Journal / source
- Boletín de la Sociedad Argentina de Botánica
- Publisher
- Universidad Nacional de Córdoba
- Volume
- 47
- Issue
- 1-2
- Publication date
- 6 May 2026
- Language
- EN