MORPHOANATOMY OF Guadua acreana, A GIANT BAMBOO FROM THE AMAZON

Abstract

Background: Guadua is a bamboo genus widely distributed in the state of Acre and holds significant potential for various applications; however, it remains largely underexplored. Bamboo morphology and anatomy are fundamental for accurate botanical identification, providing valuable insights for bioprospecting and influencing its functional properties. This study aimed to describe the morphology and perform an anatomical characterization of mature culms of Guadua acreana.
Results: Mature culms were collected from a bamboo grove located on a private lot adjacent to FUNTAC (Fundação de Tecnologia do Estado do Acre), at geographic coordinates Latitude 9°56’46.01” South and Longitude 67°52’8.86” West. A total of 10 culms were analyzed at FUNTAC. Anatomical sections were prepared and examined using optical microscopy, revealing size variations in the
vascular bundles, with increasing metaxylem and phloem dimensions toward the inner culm region, which may influence mechanical properties or water conduction efficiency. The vascular bundles of G. acreana were classified as type V, characterized by a central vascular strand surrounded by condensed sclerenchyma sheaths and fiber cords.
Conclusions: This study enhances the anatomical understanding of G. acreana and highlights its potential applications in reforestation, construction, furniture making, and pulp and paper production. Future research should focus on the mechanical properties and chemical composition of this species to improve its industrial utility.