Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications.
- Autores
- Ibañez, María Silvina; Mercado, María Inés; Coll Araoz, Maria Victoria; Zannier, Martín L.; Grau, A.; Ponessa, Graciela I.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Yacon (Smallanthus sonchifolius, Asteraceae) is an ancient andean crop that has numerous dietary and medicinal properties. Morphological and anatomical features and developmental changes of the capitulum were studied. A ray floret is a pistillate, female flower, while a disc floret is a staminate male flower, and the former opens before the latter, being pseudanthium protogynous. The capitulum presents interesting attributes for pollinators such as flower structure, nectaries and pollenkitt. Gynoecial nectaries were found on undeveloped ovary in the disc floret, but not in the ray floret. Glandular trichomes were observed on the abaxial epidermis of corolla in the ray floret, but not in the disc floret. Capitulum development was divided into eight stages. Stigma receptivity varied with these stages. Pollen viability was low (15%). In accordance with low viability, pollen grains exhibit diverse sizes and shapes, reduction in length of spines, and abnormal protoplasm. Examination of ovary development in the ray floret showed that a mature ovule was formed, but fertilization did not occur. In advanced developmental stages, the capitulum showed proliferation of the endothelium, degeneration of the embryo sac, and all harvested cypselae had aborted seeds. Problems found in pollen viability and aborted cypselae could be the result of a history of vegetative propagation in the domestication process.
EEA Balcarce
Fil: Ibañez M.S. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce, Argentina.
Fil: Mercado M.I. Fundación Miguel Lillo. Instituto de Morfología Vegetal, Tucumán, Argentina.
Fil: Coll Aráoz, María Victoria. Fil: Coll Araoz, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina. Universidad Nacional de Tucumán. Facultad Ciencias Naturales e Instituto Miguel Lillo; Argentina.
Fil: Zannier, Martín L. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales. Instituto de Ecología; Argentina.
Fil: Grau, A. Universidad Nacional de Tucumán. Facultad Ciencias Naturales e Instituto Miguel Lillo; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales. Instituto de Ecología. Argentina
Fil: Ponessa, Graciela I. Fundación Miguel Lillo. Instituto de Morfología Vegetal, Tucumán, Argentina - Fuente
- Journal of Plant Research 130 (2) : 327-337 (Marcg 2017)
- Materia
-
Anatomía de la Planta
Capítulo
Órganos Reproductivos Vegetales
Asteraceae
Etapas de Desarrollo de la Planta
Plant Anatomy
Capitulum
Plant Reproductive Organs
Plant Developmental Stages - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/4847
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Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications.Ibañez, María SilvinaMercado, María InésColl Araoz, Maria VictoriaZannier, Martín L.Grau, A.Ponessa, Graciela I.Anatomía de la PlantaCapítuloÓrganos Reproductivos VegetalesAsteraceaeEtapas de Desarrollo de la PlantaPlant AnatomyCapitulumPlant Reproductive OrgansPlant Developmental StagesYacon (Smallanthus sonchifolius, Asteraceae) is an ancient andean crop that has numerous dietary and medicinal properties. Morphological and anatomical features and developmental changes of the capitulum were studied. A ray floret is a pistillate, female flower, while a disc floret is a staminate male flower, and the former opens before the latter, being pseudanthium protogynous. The capitulum presents interesting attributes for pollinators such as flower structure, nectaries and pollenkitt. Gynoecial nectaries were found on undeveloped ovary in the disc floret, but not in the ray floret. Glandular trichomes were observed on the abaxial epidermis of corolla in the ray floret, but not in the disc floret. Capitulum development was divided into eight stages. Stigma receptivity varied with these stages. Pollen viability was low (15%). In accordance with low viability, pollen grains exhibit diverse sizes and shapes, reduction in length of spines, and abnormal protoplasm. Examination of ovary development in the ray floret showed that a mature ovule was formed, but fertilization did not occur. In advanced developmental stages, the capitulum showed proliferation of the endothelium, degeneration of the embryo sac, and all harvested cypselae had aborted seeds. Problems found in pollen viability and aborted cypselae could be the result of a history of vegetative propagation in the domestication process.EEA BalcarceFil: Ibañez M.S. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce, Argentina.Fil: Mercado M.I. Fundación Miguel Lillo. Instituto de Morfología Vegetal, Tucumán, Argentina.Fil: Coll Aráoz, María Victoria. Fil: Coll Araoz, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina. Universidad Nacional de Tucumán. Facultad Ciencias Naturales e Instituto Miguel Lillo; Argentina.Fil: Zannier, Martín L. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales. Instituto de Ecología; Argentina.Fil: Grau, A. Universidad Nacional de Tucumán. Facultad Ciencias Naturales e Instituto Miguel Lillo; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales. Instituto de Ecología. ArgentinaFil: Ponessa, Graciela I. Fundación Miguel Lillo. Instituto de Morfología Vegetal, Tucumán, ArgentinaSpringer Verlag2019-04-09T10:57:55Z2019-04-09T10:57:55Z2017-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://link.springer.com/article/10.1007/s10265-017-0904-xhttp://hdl.handle.net/20.500.12123/48470918-94401618-0860https://doi.org/10.1007/s10265-017-0904-xJournal of Plant Research 130 (2) : 327-337 (Marcg 2017)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:37Zoai:localhost:20.500.12123/4847instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:38.228INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. |
title |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. |
spellingShingle |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. Ibañez, María Silvina Anatomía de la Planta Capítulo Órganos Reproductivos Vegetales Asteraceae Etapas de Desarrollo de la Planta Plant Anatomy Capitulum Plant Reproductive Organs Plant Developmental Stages |
title_short |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. |
title_full |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. |
title_fullStr |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. |
title_full_unstemmed |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. |
title_sort |
Flower structure and developmental stages of the capitulum of Smallanthus sonchifolius (Asteraceae): reproductive implications. |
dc.creator.none.fl_str_mv |
Ibañez, María Silvina Mercado, María Inés Coll Araoz, Maria Victoria Zannier, Martín L. Grau, A. Ponessa, Graciela I. |
author |
Ibañez, María Silvina |
author_facet |
Ibañez, María Silvina Mercado, María Inés Coll Araoz, Maria Victoria Zannier, Martín L. Grau, A. Ponessa, Graciela I. |
author_role |
author |
author2 |
Mercado, María Inés Coll Araoz, Maria Victoria Zannier, Martín L. Grau, A. Ponessa, Graciela I. |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Anatomía de la Planta Capítulo Órganos Reproductivos Vegetales Asteraceae Etapas de Desarrollo de la Planta Plant Anatomy Capitulum Plant Reproductive Organs Plant Developmental Stages |
topic |
Anatomía de la Planta Capítulo Órganos Reproductivos Vegetales Asteraceae Etapas de Desarrollo de la Planta Plant Anatomy Capitulum Plant Reproductive Organs Plant Developmental Stages |
dc.description.none.fl_txt_mv |
Yacon (Smallanthus sonchifolius, Asteraceae) is an ancient andean crop that has numerous dietary and medicinal properties. Morphological and anatomical features and developmental changes of the capitulum were studied. A ray floret is a pistillate, female flower, while a disc floret is a staminate male flower, and the former opens before the latter, being pseudanthium protogynous. The capitulum presents interesting attributes for pollinators such as flower structure, nectaries and pollenkitt. Gynoecial nectaries were found on undeveloped ovary in the disc floret, but not in the ray floret. Glandular trichomes were observed on the abaxial epidermis of corolla in the ray floret, but not in the disc floret. Capitulum development was divided into eight stages. Stigma receptivity varied with these stages. Pollen viability was low (15%). In accordance with low viability, pollen grains exhibit diverse sizes and shapes, reduction in length of spines, and abnormal protoplasm. Examination of ovary development in the ray floret showed that a mature ovule was formed, but fertilization did not occur. In advanced developmental stages, the capitulum showed proliferation of the endothelium, degeneration of the embryo sac, and all harvested cypselae had aborted seeds. Problems found in pollen viability and aborted cypselae could be the result of a history of vegetative propagation in the domestication process. EEA Balcarce Fil: Ibañez M.S. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce, Argentina. Fil: Mercado M.I. Fundación Miguel Lillo. Instituto de Morfología Vegetal, Tucumán, Argentina. Fil: Coll Aráoz, María Victoria. Fil: Coll Araoz, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina. Universidad Nacional de Tucumán. Facultad Ciencias Naturales e Instituto Miguel Lillo; Argentina. Fil: Zannier, Martín L. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales. Instituto de Ecología; Argentina. Fil: Grau, A. Universidad Nacional de Tucumán. Facultad Ciencias Naturales e Instituto Miguel Lillo; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales. Instituto de Ecología. Argentina Fil: Ponessa, Graciela I. Fundación Miguel Lillo. Instituto de Morfología Vegetal, Tucumán, Argentina |
description |
Yacon (Smallanthus sonchifolius, Asteraceae) is an ancient andean crop that has numerous dietary and medicinal properties. Morphological and anatomical features and developmental changes of the capitulum were studied. A ray floret is a pistillate, female flower, while a disc floret is a staminate male flower, and the former opens before the latter, being pseudanthium protogynous. The capitulum presents interesting attributes for pollinators such as flower structure, nectaries and pollenkitt. Gynoecial nectaries were found on undeveloped ovary in the disc floret, but not in the ray floret. Glandular trichomes were observed on the abaxial epidermis of corolla in the ray floret, but not in the disc floret. Capitulum development was divided into eight stages. Stigma receptivity varied with these stages. Pollen viability was low (15%). In accordance with low viability, pollen grains exhibit diverse sizes and shapes, reduction in length of spines, and abnormal protoplasm. Examination of ovary development in the ray floret showed that a mature ovule was formed, but fertilization did not occur. In advanced developmental stages, the capitulum showed proliferation of the endothelium, degeneration of the embryo sac, and all harvested cypselae had aborted seeds. Problems found in pollen viability and aborted cypselae could be the result of a history of vegetative propagation in the domestication process. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03 2019-04-09T10:57:55Z 2019-04-09T10:57:55Z |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
https://link.springer.com/article/10.1007/s10265-017-0904-x http://hdl.handle.net/20.500.12123/4847 0918-9440 1618-0860 https://doi.org/10.1007/s10265-017-0904-x |
url |
https://link.springer.com/article/10.1007/s10265-017-0904-x http://hdl.handle.net/20.500.12123/4847 https://doi.org/10.1007/s10265-017-0904-x |
identifier_str_mv |
0918-9440 1618-0860 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess |
eu_rights_str_mv |
restrictedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer Verlag |
publisher.none.fl_str_mv |
Springer Verlag |
dc.source.none.fl_str_mv |
Journal of Plant Research 130 (2) : 327-337 (Marcg 2017) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
reponame_str |
INTA Digital (INTA) |
collection |
INTA Digital (INTA) |
instname_str |
Instituto Nacional de Tecnología Agropecuaria |
repository.name.fl_str_mv |
INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria |
repository.mail.fl_str_mv |
tripaldi.nicolas@inta.gob.ar |
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1844619132500180992 |
score |
12.559606 |