Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina
Cabrera, Cecilia N.; Patricia N. Asesor; Patricia L. Albornoz; Marta E. Arias. 2010. “Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina”. Lilloa 47 (1-2). This paper describes the anatomy of leaf, stem and root of P. Laevigatus, a shrub with a high forage value and is part of the diet of herbivorous that lives in Las Yungas, Tucumán. The material used was fresh and fixed in FAA. Conventional histological techniques were used. The leaf is dorsiventral and hypostomatic. Stomata are anomocytic and anisocytic type. Trichomes are single and glandular. Cystolits and druses are present. Petiole exhibit five collateral vascular bundles and stomata in columns. Stem present early secondary structure and secondary typical, phloem associated with mucilage fibres, discontinuous bands of the parenchyma tissue associated with xylem. Root with primary structure of the diarch type and secundary structure have grains of starch in xylematic parenchyma. The anatomic characteristics of the vegetative organs of P. laevigatus could be the base for subsequent studies related with herbivorous diet.
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Fundación Miguel Lillo
2010
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rev-lilloa-ar-article-4342020-02-07T15:27:09Z Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina Anatomía de hoja, tallo y raíz de Phenax laevigatus (Urticaceae) en la provincia de Tucumán, Argentina Cabrera, Cecilia N. Asesor, Patricia N. Albornoz, Patricia L. Arias, Marta Anatomía hoja tallo raíz Phenax laevigatus Urticaceae Anatomy leaf stem root Phenax laevigatus Urticaceae Cabrera, Cecilia N.; Patricia N. Asesor; Patricia L. Albornoz; Marta E. Arias. 2010. “Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina”. Lilloa 47 (1-2). This paper describes the anatomy of leaf, stem and root of P. Laevigatus, a shrub with a high forage value and is part of the diet of herbivorous that lives in Las Yungas, Tucumán. The material used was fresh and fixed in FAA. Conventional histological techniques were used. The leaf is dorsiventral and hypostomatic. Stomata are anomocytic and anisocytic type. Trichomes are single and glandular. Cystolits and druses are present. Petiole exhibit five collateral vascular bundles and stomata in columns. Stem present early secondary structure and secondary typical, phloem associated with mucilage fibres, discontinuous bands of the parenchyma tissue associated with xylem. Root with primary structure of the diarch type and secundary structure have grains of starch in xylematic parenchyma. The anatomic characteristics of the vegetative organs of P. laevigatus could be the base for subsequent studies related with herbivorous diet. Cabrera, Cecilia N.; Patricia N. Asesor; Patricia L. Albornoz; Marta E. Arias. 2010. “Anatomía de hoja, tallo y raíz de Phenax laevigatus (Urticaceae) en la provincia de Tucumán, Argentina”. Lilloa 47 (1-2). P. laevigatus es un arbusto con un alto valor forrajero y forma par te de la dieta de herbívoros que habitan en Las Yungas, Tucumán. El objetivo del trabajo fue estudiar la anatomía de hoja, tallo y raíz. Se trabajó con material colectado en la Sierra de San Javier y el Parque Percy Hills. Para el estudio anatómico se emplearon técnicas histológicas convencionales. La lámina es dorsiventral, venación acródoma, hipostomática, con estomas anomocítico y anisocítico. Los tricomas son simples unicelulares y glandulares; se observan cistolitos y drusas. El pecíolo presenta estomas en columna y cinco haces vasculares colaterales. El tallo con crecimiento secundario temprano y secundario típico presenta fibras mucilaginosas asociadas al floema y bandas discontinuas de tejido parenquimático en el xilema. La raíz con estructura primaria tiene estela diarca y la estructura secundaria contiene granos de almidón en el parénquima xilemático. Los caracteres anatómicos descriptos son de valor diagnóstico relevante para posteriores estudios relacionados con la dieta de herbívoros Fundación Miguel Lillo 2010-12-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://www.lillo.org.ar/journals/index.php/lilloa/article/view/434 Lilloa; Lilloa 47 (1-2) (2010); 24-32 Lilloa; Lilloa 47 (1-2) (2010); 24-32 2346-9641 spa http://www.lillo.org.ar/journals/index.php/lilloa/article/view/434/444 |
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Cabrera, Cecilia N. Asesor, Patricia N. Albornoz, Patricia L. Arias, Marta |
| spellingShingle |
Cabrera, Cecilia N. Asesor, Patricia N. Albornoz, Patricia L. Arias, Marta Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina |
| author_facet |
Cabrera, Cecilia N. Asesor, Patricia N. Albornoz, Patricia L. Arias, Marta |
| author_sort |
Cabrera, Cecilia N. |
| title |
Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina |
| title_short |
Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina |
| title_full |
Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina |
| title_fullStr |
Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina |
| title_full_unstemmed |
Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina |
| title_sort |
anatomy of leaf, stem and root of phenax laevigatus (urticaceae) in the province of tucumán, argentina |
| description |
Cabrera, Cecilia N.; Patricia N. Asesor; Patricia L. Albornoz; Marta E. Arias. 2010. “Anatomy of leaf, stem and root of Phenax laevigatus (Urticaceae) in the province of Tucumán, Argentina”. Lilloa 47 (1-2). This paper describes the anatomy of leaf, stem and root of P. Laevigatus, a shrub with a high forage value and is part of the diet of herbivorous that lives in Las Yungas, Tucumán. The material used was fresh and fixed in FAA. Conventional histological techniques were used. The leaf is dorsiventral and hypostomatic. Stomata are anomocytic and anisocytic type. Trichomes are single and glandular. Cystolits and druses are present. Petiole exhibit five collateral vascular bundles and stomata in columns. Stem present early secondary structure and secondary typical, phloem associated with mucilage fibres, discontinuous bands of the parenchyma tissue associated with xylem. Root with primary structure of the diarch type and secundary structure have grains of starch in xylematic parenchyma. The anatomic characteristics of the vegetative organs of P. laevigatus could be the base for subsequent studies related with herbivorous diet. |
| publisher |
Fundación Miguel Lillo |
| publishDate |
2010 |
| url |
http://www.lillo.org.ar/journals/index.php/lilloa/article/view/434 |
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