Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae)
A morphological and anatomical analysis of Schinopsis balansae Engl. was performed, using optical and scanning electron microscopy. The main objective was to obtain data from the flowers of this species, usually described as polygamous-dioecious. The results shows that the flowers described as...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
|---|---|
| Autor principal: | |
| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=6084 |
| descriptores_str_mv |
Anarcadiaceae Anatomía floral Dioecia Dioecy Estaminodios Flores Flowers Morfología Morphology Nectaries Nectarios Schinopsis balansae Staminoids Vascularización Vascularization |
|---|---|
| todos_str_mv |
6005 78 spa UNNE_FA |
| description_str_mv |
A morphological and anatomical analysis
of Schinopsis balansae Engl. was performed,
using optical and scanning electron microscopy.
The main objective was to obtain data from
the flowers of this species, usually described
as polygamous-dioecious. The results shows
that the flowers described as functionally
perfect are structurally pistillate; although have
five staminoids, they are smaller and lack
sporogenous tissue. In the staminate flowers,
the structure described as vestigial pistil is the
excrescence of the apex of the receptacle,
covered by nectariferous tissue. Thus, it is right
to describe S. balansae as dioecious species.
The study of the vascularization of male flowers
shows that the reduction process is complete,
since not even the vascular traces for the pistil
persists. The gynoecium of pistillate flowers is
pseudomonomerous with one functional carpel,
one ovule and one dorsal style and stigmata,
and two vestigial carpels, represented only by
individual lateral style/stigma. Both types of
flowers present an intrastaminal nectary disc,
with nectarostomatas for nectar release. The
analysis of the anatomic structure of S. balansae
provides data that are consistent with those
found in other studied genus of Anacardioideae
group in the Anacardiaceae family. Se realizó el análisis morfo-anatómico de Schinopsis balansae Engl. con microscopía óptica y electrónica de barrido a fin de obtener datos de las flores de esta especie, definida como polígamo-dioica. Los resultados muestran que las flores estructuralmente perfectas son funcionalmente pistiladas, si bien presentan cinco estaminodios, los mismos carecen de tejido esporógeno; mientras que en las flores estaminadas la estructura denominada pistilo vestigial no es más que la excrecencia del ápice del receptáculo, cubierta por tejido nectarífero. De este modo, lo correcto es describir S. balansae como especie dioica. El estudio de la vascularización de las flores estaminadas muestra que el proceso de reducción es completo, ya que ni siquiera persisten los haces vasculares del pistilo. El gineceo de las flores pistiladas es pseudomonómero, con un carpelo funcional, un estilo/estigma dorsal y un óvulo; además posee dos carpelos vestigiales representados por sendos estilo/estigma laterales. Ambos tipos de flores presentan un disco nectarífero intraestaminal, con nectarostomatas para la salida del néctar. El análisis de la estructura anatómica de S. balansae brinda datos que concuerdan con los encontrados en otros géneros estudiados de la subfamila Anacardioideae de la familia Anacardiaceae. |
| disciplina_str_mv |
Ciencias agrarias |
| titulo_str_mv |
Floral morphology and anatomy of Schinopsis balansae (Anacardiaceae) Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) |
| autor_str_mv |
González, Ana María |
| object_type_str_mv |
Textual: Revistas |
| id |
6084 |
| plantilla_str |
Artículo de Revista |
| record_format |
article |
| container_title |
Revista de la Facultad de Ciencias Agrarias |
| journal_title_str |
Revista de la Facultad de Ciencias Agrarias |
| journal_id_str |
r-78 |
| container_issue |
Revista de la Facultad de Ciencias Agrarias |
| container_volume |
Vol. 45, no. 2 |
| journal_issue_str |
Vol. 45, no. 2 |
| tipo_str |
textuales |
| type_str_mv |
Articulos |
| title_full |
Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) |
| title_fullStr |
Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) |
| title_full_unstemmed |
Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) |
| description |
A morphological and anatomical analysis
of Schinopsis balansae Engl. was performed,
using optical and scanning electron microscopy.
The main objective was to obtain data from
the flowers of this species, usually described
as polygamous-dioecious. The results shows
that the flowers described as functionally
perfect are structurally pistillate; although have
five staminoids, they are smaller and lack
sporogenous tissue. In the staminate flowers,
the structure described as vestigial pistil is the
excrescence of the apex of the receptacle,
covered by nectariferous tissue. Thus, it is right
to describe S. balansae as dioecious species.
The study of the vascularization of male flowers
shows that the reduction process is complete,
since not even the vascular traces for the pistil
persists. The gynoecium of pistillate flowers is
pseudomonomerous with one functional carpel,
one ovule and one dorsal style and stigmata,
and two vestigial carpels, represented only by
individual lateral style/stigma. Both types of
flowers present an intrastaminal nectary disc,
with nectarostomatas for nectar release. The
analysis of the anatomic structure of S. balansae
provides data that are consistent with those
found in other studied genus of Anacardioideae
group in the Anacardiaceae family. |
| dependencia_str_mv |
Facultad de Ciencias Agrarias |
| title |
Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) |
| spellingShingle |
Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) Anarcadiaceae Anatomía floral Dioecia Dioecy Estaminodios Flores Flowers Morfología Morphology Nectaries Nectarios Schinopsis balansae Staminoids Vascularización Vascularization González, Ana María |
| topic |
Anarcadiaceae Anatomía floral Dioecia Dioecy Estaminodios Flores Flowers Morfología Morphology Nectaries Nectarios Schinopsis balansae Staminoids Vascularización Vascularization |
| topic_facet |
Anarcadiaceae Anatomía floral Dioecia Dioecy Estaminodios Flores Flowers Morfología Morphology Nectaries Nectarios Schinopsis balansae Staminoids Vascularización Vascularization |
| author |
González, Ana María |
| author_facet |
González, Ana María |
| title_sort |
Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) |
| title_short |
Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae) |
| url |
https://bdigital.uncu.edu.ar/fichas.php?idobjeto=6084 |
| estado_str |
3 |
| building |
Biblioteca Digital |
| filtrotop_str |
Biblioteca Digital |
| collection |
Artículo de Revista |
| institution |
Sistema Integrado de Documentación |
| indexed_str |
2023-04-25 00:37 |
| _version_ |
1764120283305738240 |
