| Full text | |
| Author(s): |
Boian Carneiro, Tainah Eduarda
;
Martins, Aline Redondo
Total Authors: 2
|
| Document type: | Journal article |
| Source: | BOTANY; v. 100, n. 6, p. 10-pg., 2022-04-14. |
| Abstract | |
Astronium fraxinifolium Schott and Astronium graveolens Jacq. are included in the Anacardiaceae. The secretory structures of Anacardiaceae have been studied several times; however, there is a lack of knowledge related to these structures in Astronium, and there are inconsistencies in the taxonomy of the groups. The present study aimed to describe the internal and external secretory structures of A. fraxinifolium and A. graveolens to refine the genus' taxonomy and highlight the uniqueness of their differentiation. Plant samples were fixed, dehydrated, and prepared for analysis by light microscopy and scanning electron microscopy using standard anatomical techniques. Non-glandular trichomes are present over the entire surface of the blade of the mature leaves of A. fraxinifolium. In contrast, in A. graveolens, non-glandular trichomes are concentrated only on the midrib region of the leaflets. The glandular trichomes, absent in the mature leaves of A. fraxinifolium, are present in the mature leaves of A. graveolens around the midrib. Astronium fraxinifolium ducts have a schizolysigenous origin, and A. graveolens have a lysigenous origin. Therefore, it was concluded that, in general, secretory structures represent a crucial taxonomic factor distinguishing these species. non-glandular trichomes, secretory ducts. Resume : Astronium fraxinifolium Schott et Astronium graveolens Jacq. ont ete inclus chez les Anacardiaceae. Les structures secretoires des Anacardiaceae ont ete etudiees a plusieurs reprises. Cependant, les connaissances groupes. La presente etude visait a decrire les structures secretoires internes et externes d'A. fraxinifolium et ciation. Les echantillons de plantes ont ete fixes, deshydrates et prepares pour etre analyses par microscopie dulaires sont presents sur toute la surface du limbe des feuilles matures d'A. fraxinifolium. En revanche, chez dulaires, absents des feuilles matures d'A. fraxinifolium, sont presents dans les feuilles matures d'A. graveolens autour de la nervure centrale. Les conduits d'A. fraxinifolium ont une origine schizolysigene, et ceux d'A. graveolens, une origine lysigene. Par consequent, il a ete conclu que, en general, les structures secretoires representent un facteur taxonomique crucial pour distinguer ces especes. [Traduit par la Redaction] (AU) | |
| FAPESP's process: | 15/01390-2 - Secretory structures and chemical profile of Astronium fraxinifolium leaves |
| Grantee: | Tainah Eduarda Boian Carneiro |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |