Anatomy, nutritional value and cell wall chemical analysis of foliage leaves of Guadua chacoensis (Poaceae, Bambusoideae, Bambuseae), a promising source of forage

• Autores: Panizzo, Cecilia Clara; Fernández, Paula Virginia; Colombatto, Darío; Ciancia, Marina; Vega, Andrea Susana
• Año de publicación: 2017
• Idioma: inglés
• Tipo de recurso: artículo
• Fuente: Journal of the science of food and agriculture; Vol.94, no.4; 1349-1358; https://www.wiley.com
• Materia: CELL WALL POLYSACCHARIDE; GUADUA CHACOENSIS; LEAF DIGESTIBILITY; FORAGE; NUTRITIONAL VALUE; WOODY BAMBOO
• Institución: Universidad de Buenos Aires. Facultad de Agronomía

Fil: Panizzo, Cecilia Clara. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica General. Buenos Aires, Argentina.
Fil: Fernández, Paula Virginia. Universidad de Buenos Aires. Departamento de Biología Aplicada y Alimentos. Cátedra de Química de Biomoléculas. Buenos Aires, Argentina.
Fil: Colombatto, Darío. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal. Cátedra de Bovinos de Carne. Buenos Aires, Argentina.
Fil: Ciancia, Marina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica General. Buenos Aires, Argentina.
Fil: Vega, Andrea Susana. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica General. Buenos Aires, Argentina.
The present study combines morphological and anatomical studies, cell wall chemical composition analysis, as well as assessment of the nutritional value of Guadua chacoensis foliage leaves. Foliage leaves of G. chacoensis are a promising source of forage because: (a) as a native woody bamboo, it is adapted to and helps maintain environmental conditions in America; (b) leaf anatomical studies exhibit discontinuous sclerenchyma, scarcely developed, while pilose indumentum, silica cells, prickles and hooks are also scarce; (c) it has a high protein content, similar to that of Medicago sativa, while other nutritional parameters are similar to those of common forages; and (d) glucuronoarabinoxylan, the major extracted polysaccharide, has one-third of the 4-linked Beta - D- xylopyranosyl units of the backbone substituted mainly with alfa - L-arabinofuranose as single stubs or non-reducing end of short chains, but also -linked alfa - L-arabinofuranose units, terminal Beta - D- D-xylopyranose and D-galactopyranose units, as well as alfa - D- glucuronic acid residues and small amounts of its 4-O-methylated derivative. These results constitute the first report on this species, and as culms are utilized in constructions and crafts, the remaining leaves, when used as forage, constitute a byproduct that allows an additional income opportunity.
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