2007
DOI: 10.1590/2175-7860200758108
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Anatomía foliar de Panicum L., sección Parvifolia (Poaceae, Paniceae) en Venezuela

Abstract: RESUMEN(Anatomía foliar de Panicum L., sección Parvifolia (Poaceae, Paniceae) en Venezuela) En el presente trabajo se caracterizó la anatomía foliar de las 10 especies de Panicum sección Parvifolia que presentan mayor dificultad para su delimitación desde el punto de vista morfológico: P. arctum, P. fonticola, P. granuliferum, P. micranthum, P. pandum, P. petrense, P. polycomum, P. pyrularium, P. rivale y P. yavitaense, utilizando especimenes provenientes de material de herbario colectados en el sur y centro d… Show more

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Cited by 3 publications
(3 citation statements)
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“…The forage pastures quality is given by the constitution of the epidermal tissues; therefore, in C 4 species such as the grasses included in this study, the mesophyll, phloem, epidermis, parenchyma, and bundle sheath degrade slowly or partially (Guevara and Ramia, 2007). Therefore, in the case of the side oats grama (B. curtipendula), according to Bernal-Flores et al (2017), the digestibility of the phloem and mesophyll is high and 70% of the chloroplast protein is concentrated in the latter.…”
Section: Nutritional Qualitymentioning
confidence: 99%
“…The forage pastures quality is given by the constitution of the epidermal tissues; therefore, in C 4 species such as the grasses included in this study, the mesophyll, phloem, epidermis, parenchyma, and bundle sheath degrade slowly or partially (Guevara and Ramia, 2007). Therefore, in the case of the side oats grama (B. curtipendula), according to Bernal-Flores et al (2017), the digestibility of the phloem and mesophyll is high and 70% of the chloroplast protein is concentrated in the latter.…”
Section: Nutritional Qualitymentioning
confidence: 99%
“…A análise da anatomia foliar também tem sido utilizada em outros níveis taxonômicos fornecendo vários caracteres constantes e diagnósticos. ( Metcalfe 1960;Ellis 1976;1979;López & Devesa 1991;Torres & Engleman 1995;Sánchez & Koch 1998;Vieira et al 2002;Kesler et al 2003, Silva & Alquini 2003Alvarez et al 2005;Ma et al 2005;Finot et al 2006;Guevara & Ramia 2007;Kharazian 2007).…”
Section: Introductionunclassified
“…Las láminas foliares de gramíneas C 3 presentan mayor digestibilidad de tejidos en comparación con aquellos de especies C 4 , porque las primeras tienen mayor número de células del mesófilo. Las células del mesófilo, floema, epidermis, parénquima y vaina del haz vascular de las especies C 3 se degradan totalmente en el rumiante, en contraste con las especies C 4 , donde éstas se degradan de manera lenta o parcial (Guevara y Ramia, 2007). Estas diferencias en degradabilidad se deben a que en especies C 4 las hojas contienen mayor cantidad de fibras y tejidos lignificados que en las especies C 3 (Akin y Burdick, 1975).…”
Section: Introductionunclassified