Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae)

Background and aims: Zephyranthes bifida is a native species of the Pampas ecoregion, with ornamental and medicinal potential. In this work, the seedling was studied for the first time and its seeds were characterized. The objectives were to describe the cotyledon and the first leaf and to provide s...

Descripción completa

Detalles Bibliográficos
Autores principales: Goyenetche, Juan Manuel, Acosta, María Cecilia, Alcaraz, María Luciana, Manfreda, Vilma Teresa, Scaramuzzino, Rosa Lourdes
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2022
Materias:
Anatomía.
Cotiledón
Eófilo
Plántulas
Reservas seminales
Rhodophiala bifida
Semillas
Anatomy
eophyll
cotyledon
seeds
seed reserves
seedlings
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/37812
Aporte de:
Boletín de la Sociedad Argentina de Botánica de Universidad Nacional de Córdoba
id I10-R325-article-37812
record_format ojs
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-325
container_title_str Boletín de la Sociedad Argentina de Botánica
language Español
format Artículo revista
topic Anatomía.
Cotiledón
Eófilo
Plántulas
Reservas seminales
Rhodophiala bifida
Semillas
Anatomy
eophyll
cotyledon
Rhodophiala bifida
seeds
seed reserves
seedlings
spellingShingle Anatomía.
Cotiledón
Eófilo
Plántulas
Reservas seminales
Rhodophiala bifida
Semillas
Anatomy
eophyll
cotyledon
Rhodophiala bifida
seeds
seed reserves
seedlings
Goyenetche, Juan Manuel
Acosta, María Cecilia
Alcaraz, María Luciana
Manfreda, Vilma Teresa
Scaramuzzino, Rosa Lourdes
Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae)
topic_facet Anatomía.
Cotiledón
Eófilo
Plántulas
Reservas seminales
Rhodophiala bifida
Semillas
Anatomy
eophyll
cotyledon
Rhodophiala bifida
seeds
seed reserves
seedlings
author Goyenetche, Juan Manuel
Acosta, María Cecilia
Alcaraz, María Luciana
Manfreda, Vilma Teresa
Scaramuzzino, Rosa Lourdes
author_facet Goyenetche, Juan Manuel
Acosta, María Cecilia
Alcaraz, María Luciana
Manfreda, Vilma Teresa
Scaramuzzino, Rosa Lourdes
author_sort Goyenetche, Juan Manuel
title Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae)
title_short Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae)
title_full Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae)
title_fullStr Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae)
title_full_unstemmed Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae)
title_sort characterization of seeds and seedlings of zephyranthes bifida (amaryllidaceae)
description Background and aims: Zephyranthes bifida is a native species of the Pampas ecoregion, with ornamental and medicinal potential. In this work, the seedling was studied for the first time and its seeds were characterized. The objectives were to describe the cotyledon and the first leaf and to provide some anatomical characteristics, as well as to provide information about the embryo/endosperm relationship and the type of reserve substances in the seed. M&M: Seed reserve substances were determined by histochemical tests and the embryo/endosperm surface ratio was obtained with ImageJ. In seedlings, morphological structures were described, using Tillich's terminology (1995; 2007), and some anatomical characteristics. Phenological stages were established for ten days from germination.  Results and conclusions: Lipid and protein and lack of starch were determined in embryo and endosperm. In seedlings, the cotyledon is subdivided into a hypophyll and a hyperphyll. Hypophyll presents a ring through which the first eophyll emerges. The distal part of the cotyledonary hyperphyll is completely inserted in the seed, has a haustorial function and has two vascular bundles. Proximal part of cotyledonary hyperphyll has photosynthetic activity and has two vascular bundles too. In the first eophyll, hyperphyll has three vascular bundles. The primary root is attached to the base of the cotyledon through a very short hypocotyl, which in its basal part has rhizoids. Four stages were defined during germination from the emergence of hypophyll, hyperphyll and first eophyll.
publisher Sociedad Argentina de Botánica
publishDate 2022
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/37812
work_keys_str_mv AT goyenetchejuanmanuel characterizationofseedsandseedlingsofzephyranthesbifidaamaryllidaceae
AT acostamariacecilia characterizationofseedsandseedlingsofzephyranthesbifidaamaryllidaceae
AT alcarazmarialuciana characterizationofseedsandseedlingsofzephyranthesbifidaamaryllidaceae
AT manfredavilmateresa characterizationofseedsandseedlingsofzephyranthesbifidaamaryllidaceae
AT scaramuzzinorosalourdes characterizationofseedsandseedlingsofzephyranthesbifidaamaryllidaceae
AT goyenetchejuanmanuel caracterizaciondesemillasyplantulasdezephyranthesbifidaamaryllidaceae
AT acostamariacecilia caracterizaciondesemillasyplantulasdezephyranthesbifidaamaryllidaceae
AT alcarazmarialuciana caracterizaciondesemillasyplantulasdezephyranthesbifidaamaryllidaceae
AT manfredavilmateresa caracterizaciondesemillasyplantulasdezephyranthesbifidaamaryllidaceae
AT scaramuzzinorosalourdes caracterizaciondesemillasyplantulasdezephyranthesbifidaamaryllidaceae
first_indexed 2024-09-03T22:50:20Z
last_indexed 2024-09-03T22:50:20Z
_version_ 1809217036088246272
spelling I10-R325-article-378122023-02-15T20:32:25Z Characterization of seeds and seedlings of Zephyranthes bifida (Amaryllidaceae) Caracterización de semillas y plántulas de Zephyranthes bifida (Amaryllidaceae) Goyenetche, Juan Manuel Acosta, María Cecilia Alcaraz, María Luciana Manfreda, Vilma Teresa Scaramuzzino, Rosa Lourdes Anatomía. Cotiledón Eófilo Plántulas Reservas seminales Rhodophiala bifida Semillas Anatomy eophyll cotyledon Rhodophiala bifida seeds seed reserves seedlings Background and aims: Zephyranthes bifida is a native species of the Pampas ecoregion, with ornamental and medicinal potential. In this work, the seedling was studied for the first time and its seeds were characterized. The objectives were to describe the cotyledon and the first leaf and to provide some anatomical characteristics, as well as to provide information about the embryo/endosperm relationship and the type of reserve substances in the seed. M&M: Seed reserve substances were determined by histochemical tests and the embryo/endosperm surface ratio was obtained with ImageJ. In seedlings, morphological structures were described, using Tillich's terminology (1995; 2007), and some anatomical characteristics. Phenological stages were established for ten days from germination.  Results and conclusions: Lipid and protein and lack of starch were determined in embryo and endosperm. In seedlings, the cotyledon is subdivided into a hypophyll and a hyperphyll. Hypophyll presents a ring through which the first eophyll emerges. The distal part of the cotyledonary hyperphyll is completely inserted in the seed, has a haustorial function and has two vascular bundles. Proximal part of cotyledonary hyperphyll has photosynthetic activity and has two vascular bundles too. In the first eophyll, hyperphyll has three vascular bundles. The primary root is attached to the base of the cotyledon through a very short hypocotyl, which in its basal part has rhizoids. Four stages were defined during germination from the emergence of hypophyll, hyperphyll and first eophyll. Introducción y objetivos: Zephyranthes bifida es una especie nativa de la ecorregión pampeana, con potencial ornamental y medicinal. En este trabajo se estudió por primera vez la plántula y se caracterizaron sus semillas. Los objetivos fueron describir el cotiledón y la primera hoja, aportar algunas características anatómicas, y brindar información acerca de la relación embrión/endosperma y del tipo de sustancias de reserva de la semilla.  M&M: Mediante pruebas histoquímicas se determinaron sustancias de reserva seminales y con ImageJ se obtuvo la relación de superficie embrión/endosperma. En plántulas se describieron estructuras anatómicas y morfológicas utilizando la terminología de Tillich (1995; 2007). Se establecieron estados fenológicos durante diez días desde la germinación. Resultados y conclusiones: Se determinó la presencia de lípidos y proteínas y la ausencia de almidón en embrión y endosperma. En la plántula, el cotiledón está formado por un hipofilo y un hiperfilo. El hipofilo presenta un anillo por el cual emerge el primer eófilo. El extremo distal del hiperfilo cotiledonar está inserto completamente en la semilla, tiene función haustorial y posee dos haces vasculares. La zona proximal del hiperfilo cotiledonar tiene actividad fotosintética y también presenta dos haces vasculares. El hiperfilo del primer eófilo posee tres haces vasculares. La raíz primaria está unida a la base del cotiledón a través de un hipocótilo muy corto, que en su base presenta rizoides. Se definieron cuatro estadios durante la germinación a partir de la emergencia de hipofilo, hiperfilo y primer eófilo.  Sociedad Argentina de Botánica 2022-11-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/37812 10.31055/1851.2372.v57.n4.37812 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 57 No. 4 (2022): December Boletín de la Sociedad Argentina de Botánica; Vol. 57 Núm. 4 (2022): Diciembre Boletín de la Sociedad Argentina de Botánica; v. 57 n. 4 (2022): Diciembre 1851-2372 0373-580X 10.31055/1851.2372.v57.n4 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/37812/39131 https://revistas.unc.edu.ar/index.php/BSAB/article/view/37812/39132 Derechos de autor 2022 Juan Manuel Goyenetche, María Cecilia Acosta, María Luciana Alcaraz, Vilma Teresa Manfreda, Rosa Lourdes Scaramuzzino https://creativecommons.org/licenses/by-nc-nd/4.0

Ejemplares similares