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
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
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spelling 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/restrictedAccess2025-10-23T11:16:54Zoai: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:l2025-10-23 11:16:54.97INTA 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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score 12.982451

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