Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae)
Bulacio, Eva; Graciela Ponessa. 2012. “Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae)”. Lilloa 49 (1). Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre is distributed from Ecuador to northern Argentina, mainly along the Andes. The presence or absence of tubers in this subspecies is controversial, because those were observed only in species under cultivation. The aim of this work was to perform a morpho-anatomical description of the vegetative organs of this subspecies. We worked with fresh material, conventional techniques were performed and observations by optical and scanning microscope were done. The leaf is dorsiventral, hypostomatic with anomocytic stomata and venation is actinodrome. The aerial stem is circular and the vascular bundle is an ectophloematic euestele; rhizome with cortical parenchyma and pith parenchyma cells mature loosely arranged. The fasciculate roots are diarch and present an endogenous origin from the rizome. The mentioned feature in this study represents an important contribution to the moment of characterizing the subspecies.
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Fundación Miguel Lillo
2012
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rev-lilloa-ar-article-3982020-02-07T17:58:02Z Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) Morfología y anatomía de órganos vegetativos de Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) Bulacio, Eva Ponessa, Graciela I. Morfología anatomía órganos vegetativos Tropaeolum tuberosum Tropaeolaceae Morphology anatomy vegetative organ Tropaeolum tuberosum Tropaeolaceae Bulacio, Eva; Graciela Ponessa. 2012. “Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae)”. Lilloa 49 (1). Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre is distributed from Ecuador to northern Argentina, mainly along the Andes. The presence or absence of tubers in this subspecies is controversial, because those were observed only in species under cultivation. The aim of this work was to perform a morpho-anatomical description of the vegetative organs of this subspecies. We worked with fresh material, conventional techniques were performed and observations by optical and scanning microscope were done. The leaf is dorsiventral, hypostomatic with anomocytic stomata and venation is actinodrome. The aerial stem is circular and the vascular bundle is an ectophloematic euestele; rhizome with cortical parenchyma and pith parenchyma cells mature loosely arranged. The fasciculate roots are diarch and present an endogenous origin from the rizome. The mentioned feature in this study represents an important contribution to the moment of characterizing the subspecies. Bulacio, Eva; Graciela Ponessa. 2012. “Morfología y anatomía de órganos vegetativos de Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae)”. Lilloa 49 (1). Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre se distribuye desde Ecuador hasta el norte de Argentina principalmente por la Cordillera de los Andes. La presencia o no de tubérculos en esta entidad es motivo de controversia ya que sólo fueron observados en aquellas sometidas a cultivo. El objetivo del presente trabajo fue realizar la descripción morfoanatómica de los órganos vegetativos. Se trabajó con material fresco, se aplicaron técnicas convencionales y se realizaron observaciones mediante microscopio óptico y electrónico de barrido. Los resultados muestran: hoja dorsiventral hipostomática con estomas de tipo anomocítico y venación actinódroma. Tallo aéreo de sección circular con eustela ectofloemática; rizoma con parénquima cortical amiláceo y médula con células parenquimáticas laxamente dispuestas. Raíces fasciculadas de origen endógeno y estela protostélica diarca. Las características mencionadas en este trabajo constituyen un aporte importante al momento de caracterizar la subespecie. Fundación Miguel Lillo 2012-06-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://www.lillo.org.ar/journals/index.php/lilloa/article/view/398 Lilloa; Lilloa 49 (1) (2012); 3-16 Lilloa; Lilloa 49 (1) (2012); 3-16 2346-9641 spa http://www.lillo.org.ar/journals/index.php/lilloa/article/view/398/417 |
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Bulacio, Eva Ponessa, Graciela I. |
| spellingShingle |
Bulacio, Eva Ponessa, Graciela I. Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) |
| author_facet |
Bulacio, Eva Ponessa, Graciela I. |
| author_sort |
Bulacio, Eva |
| title |
Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) |
| title_short |
Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) |
| title_full |
Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) |
| title_fullStr |
Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) |
| title_full_unstemmed |
Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae) |
| title_sort |
morphology and anatomy of vegetative organs of tropaeolum tuberosum ssp. silvestre (tropaeolaceae) |
| description |
Bulacio, Eva; Graciela Ponessa. 2012. “Morphology and anatomy of vegetative organs of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae)”. Lilloa 49 (1). Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre is distributed from Ecuador to northern Argentina, mainly along the Andes. The presence or absence of tubers in this subspecies is controversial, because those were observed only in species under cultivation. The aim of this work was to perform a morpho-anatomical description of the vegetative organs of this subspecies. We worked with fresh material, conventional techniques were performed and observations by optical and scanning microscope were done. The leaf is dorsiventral, hypostomatic with anomocytic stomata and venation is actinodrome. The aerial stem is circular and the vascular bundle is an ectophloematic euestele; rhizome with cortical parenchyma and pith parenchyma cells mature loosely arranged. The fasciculate roots are diarch and present an endogenous origin from the rizome. The mentioned feature in this study represents an important contribution to the moment of characterizing the subspecies. |
| publisher |
Fundación Miguel Lillo |
| publishDate |
2012 |
| url |
http://www.lillo.org.ar/journals/index.php/lilloa/article/view/398 |
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