Abstract

ZARAGOZA-HERNANDEZ, Idalia et al. Bamboo culms anatomy (Guadua aculeata Rupr.) of the north-east region of Puebla state, Mexico. Madera bosques [online]. 2014, vol.20, n.3, pp.87-96. ISSN 2448-7597.

The characterization of Guadua aculeata Rupr. ex Fournier culm wall was made; the specimens were collected on the locality "Las Margaritas", which is located in the municipality of Hueytamalco, Puebla, Mexico. The objective was to determine the proportion of the anatomical structures that make up the culm and the fiber sizes, to contribute to the species knowledge. The anatomical composition of the culm and the characterization of the fibers were studied, using four culms. For the measurement of the fiber, each culm was cut into three parts lengthwise (lower, middle and higher). From these section slices from the internode and close to the node, were cut. Three sections were obtained from the inside wall of the culm in the slices (inner, middle and outer). For the anatomical composition, the methodology was the same than that for fibers characterization, except for the cut slices of node and internode. From those, transverse histological sections 5 mm thick were made. The form of the vascular bundles does not coincide completely with the existing classification. The culm composition is 50% of parenchyma, 41% of fiber and 9% of conductive tissue. The fibers average dimension were 2,152 mm length, 13,68 μm diameter, 3,29 μm lumen diameter and 10,39 μm in wall thickness.

Keywords : caña brava; bamboo fibers; vascular bundles; parenchyma cells; tarro; conductive tissue.