Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)

Autores
Agüero Martínez, Paola Fernanda; Cardozo, Leonardo; Gómez, Carlos A.; Lopez Spahr, Diego; Baskin, Carol C.; Bertero, Héctor Daniel; Galindez, Guadalupe; Curti, Ramiro Nestor
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chenopodium hircinum, the putative wild ancestor of quinoa, is a source of traits that could improve the tolerance of crop quinoa to high temperatures. However, seeds of C. hircinum have physiological dormancy (PD), which is an obstacle for plant propagation and use in breeding programs. We studied the intraspecific variability in morpho-anatomical traits of embryo covering structures and their association with PD. We also evaluated the effects of different dormancy-breaking treatments on PD alleviation and germination. Seeds were dispersed with a remnant perianth and a persistent pericarp that could be removed by scraping. The seed coat was formed by palisade cells impregnated with tannins, and the seed contained a thin layer of peripheral endosperm surrounding the embryo. In our investigation, the thickness of the pericarp (P) and/or seed coat (SC) varied among populations. Populations with higher P and/or SC thickness showed lower percentages of germination and water absorption. The combined dormancy-breaking treatment (bleach + perforated coverings + gibberellic acid) promoted dormancy release and increased germination. C. hircinum seeds showed non-deep physiological dormancy. Based on previous knowledge about quinoa, and our results, we conclude that embryo coverings, especially the seed coat, have an important role in dormancy control, imposing a mechanical restraint on radicle emergence.
EEA Salta
Fil: Agüero Martínez, Paola Fernanda. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Cardozo, Leonardo. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Gomez, Carlos Alberto. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Gomez, Carlos Alberto. Concejo Nacional de Investigaciones Científicas y Técnicas. CCT Salta. Laboratorio de Microscopía Electrónica de Barrido; Argentina.
Fil: Gomez, Carlos Alberto. Universidad Nacional de Salta. Laboratorio de Microscopía Electrónica de Barrido; Argentina
Fil: López Spahr, Diego. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: López Spahr, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Baskin, Carol C. University of Kentucky. Department of Biology and Department of Plant and Soil Sciences; Estados Unidos
Fil: Bertero, Hector Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Producción Vegetal; Argentina
Fil: Galindez, Guadalupe. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Galindez, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (CCT)-Salta-Jujuy; Argentina.
Fil: Curti, Ramiro Nestor. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Curti, Ramiro Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (CCT)-Salta-Jujuy; Argentina.
Fuente
Plants 13 (19) : 2832. (October 2024)
Materia
Chenopodium
Amaranthaceae
Physiological Dormancy
Seed Traits
Plant Domestication
Intraspecific Relationships
Testa
Germination
Latencia Fisiológica
Rasgos de la Semilla
Domesticación de Plantas
Relación Intraespecífica
Germinación
Chenopodium hircinum
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/21803
Acceder
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oai_identifier_str oai:localhost:20.500.12123/21803
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)Agüero Martínez, Paola FernandaCardozo, LeonardoGómez, Carlos A.Lopez Spahr, DiegoBaskin, Carol C.Bertero, Héctor DanielGalindez, GuadalupeCurti, Ramiro NestorChenopodiumAmaranthaceaePhysiological DormancySeed TraitsPlant DomesticationIntraspecific RelationshipsTestaGerminationLatencia FisiológicaRasgos de la SemillaDomesticación de PlantasRelación IntraespecíficaGerminaciónChenopodium hircinumChenopodium hircinum, the putative wild ancestor of quinoa, is a source of traits that could improve the tolerance of crop quinoa to high temperatures. However, seeds of C. hircinum have physiological dormancy (PD), which is an obstacle for plant propagation and use in breeding programs. We studied the intraspecific variability in morpho-anatomical traits of embryo covering structures and their association with PD. We also evaluated the effects of different dormancy-breaking treatments on PD alleviation and germination. Seeds were dispersed with a remnant perianth and a persistent pericarp that could be removed by scraping. The seed coat was formed by palisade cells impregnated with tannins, and the seed contained a thin layer of peripheral endosperm surrounding the embryo. In our investigation, the thickness of the pericarp (P) and/or seed coat (SC) varied among populations. Populations with higher P and/or SC thickness showed lower percentages of germination and water absorption. The combined dormancy-breaking treatment (bleach + perforated coverings + gibberellic acid) promoted dormancy release and increased germination. C. hircinum seeds showed non-deep physiological dormancy. Based on previous knowledge about quinoa, and our results, we conclude that embryo coverings, especially the seed coat, have an important role in dormancy control, imposing a mechanical restraint on radicle emergence.EEA SaltaFil: Agüero Martínez, Paola Fernanda. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Cardozo, Leonardo. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Gomez, Carlos Alberto. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.Fil: Gomez, Carlos Alberto. Concejo Nacional de Investigaciones Científicas y Técnicas. CCT Salta. Laboratorio de Microscopía Electrónica de Barrido; Argentina.Fil: Gomez, Carlos Alberto. Universidad Nacional de Salta. Laboratorio de Microscopía Electrónica de Barrido; ArgentinaFil: López Spahr, Diego. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: López Spahr, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaFil: Baskin, Carol C. University of Kentucky. Department of Biology and Department of Plant and Soil Sciences; Estados UnidosFil: Bertero, Hector Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Producción Vegetal; ArgentinaFil: Galindez, Guadalupe. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Galindez, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (CCT)-Salta-Jujuy; Argentina.Fil: Curti, Ramiro Nestor. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Curti, Ramiro Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (CCT)-Salta-Jujuy; Argentina.MDPI2025-03-25T12:32:20Z2025-03-25T12:32:20Z2024-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21803https://www.mdpi.com/2223-7747/13/19/28322223-7747https://doi.org/10.3390/plants13192832Plants 13 (19) : 2832. (October 2024)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-11T10:25:40Zoai:localhost:20.500.12123/21803instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-11 10:25:40.6INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
title Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
spellingShingle Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
Agüero Martínez, Paola Fernanda
Chenopodium
Amaranthaceae
Physiological Dormancy
Seed Traits
Plant Domestication
Intraspecific Relationships
Testa
Germination
Latencia Fisiológica
Rasgos de la Semilla
Domesticación de Plantas
Relación Intraespecífica
Germinación
Chenopodium hircinum
title_short Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
title_full Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
title_fullStr Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
title_full_unstemmed Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
title_sort Variation in Thickness of Embryo Covering Structures and Their Role in the Regulation of Seed Physiological Dormancy of Chenopodium hircinum (Amaranthaceae)
dc.creator.none.fl_str_mv Agüero Martínez, Paola Fernanda
Cardozo, Leonardo
Gómez, Carlos A.
Lopez Spahr, Diego
Baskin, Carol C.
Bertero, Héctor Daniel
Galindez, Guadalupe
Curti, Ramiro Nestor
author Agüero Martínez, Paola Fernanda
author_facet Agüero Martínez, Paola Fernanda
Cardozo, Leonardo
Gómez, Carlos A.
Lopez Spahr, Diego
Baskin, Carol C.
Bertero, Héctor Daniel
Galindez, Guadalupe
Curti, Ramiro Nestor
author_role author
author2 Cardozo, Leonardo
Gómez, Carlos A.
Lopez Spahr, Diego
Baskin, Carol C.
Bertero, Héctor Daniel
Galindez, Guadalupe
Curti, Ramiro Nestor
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Chenopodium
Amaranthaceae
Physiological Dormancy
Seed Traits
Plant Domestication
Intraspecific Relationships
Testa
Germination
Latencia Fisiológica
Rasgos de la Semilla
Domesticación de Plantas
Relación Intraespecífica
Germinación
Chenopodium hircinum
topic Chenopodium
Amaranthaceae
Physiological Dormancy
Seed Traits
Plant Domestication
Intraspecific Relationships
Testa
Germination
Latencia Fisiológica
Rasgos de la Semilla
Domesticación de Plantas
Relación Intraespecífica
Germinación
Chenopodium hircinum
dc.description.none.fl_txt_mv Chenopodium hircinum, the putative wild ancestor of quinoa, is a source of traits that could improve the tolerance of crop quinoa to high temperatures. However, seeds of C. hircinum have physiological dormancy (PD), which is an obstacle for plant propagation and use in breeding programs. We studied the intraspecific variability in morpho-anatomical traits of embryo covering structures and their association with PD. We also evaluated the effects of different dormancy-breaking treatments on PD alleviation and germination. Seeds were dispersed with a remnant perianth and a persistent pericarp that could be removed by scraping. The seed coat was formed by palisade cells impregnated with tannins, and the seed contained a thin layer of peripheral endosperm surrounding the embryo. In our investigation, the thickness of the pericarp (P) and/or seed coat (SC) varied among populations. Populations with higher P and/or SC thickness showed lower percentages of germination and water absorption. The combined dormancy-breaking treatment (bleach + perforated coverings + gibberellic acid) promoted dormancy release and increased germination. C. hircinum seeds showed non-deep physiological dormancy. Based on previous knowledge about quinoa, and our results, we conclude that embryo coverings, especially the seed coat, have an important role in dormancy control, imposing a mechanical restraint on radicle emergence.
EEA Salta
Fil: Agüero Martínez, Paola Fernanda. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Cardozo, Leonardo. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Gomez, Carlos Alberto. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina.
Fil: Gomez, Carlos Alberto. Concejo Nacional de Investigaciones Científicas y Técnicas. CCT Salta. Laboratorio de Microscopía Electrónica de Barrido; Argentina.
Fil: Gomez, Carlos Alberto. Universidad Nacional de Salta. Laboratorio de Microscopía Electrónica de Barrido; Argentina
Fil: López Spahr, Diego. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: López Spahr, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Baskin, Carol C. University of Kentucky. Department of Biology and Department of Plant and Soil Sciences; Estados Unidos
Fil: Bertero, Hector Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Producción Vegetal; Argentina
Fil: Galindez, Guadalupe. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Galindez, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (CCT)-Salta-Jujuy; Argentina.
Fil: Curti, Ramiro Nestor. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Curti, Ramiro Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (CCT)-Salta-Jujuy; Argentina.
description Chenopodium hircinum, the putative wild ancestor of quinoa, is a source of traits that could improve the tolerance of crop quinoa to high temperatures. However, seeds of C. hircinum have physiological dormancy (PD), which is an obstacle for plant propagation and use in breeding programs. We studied the intraspecific variability in morpho-anatomical traits of embryo covering structures and their association with PD. We also evaluated the effects of different dormancy-breaking treatments on PD alleviation and germination. Seeds were dispersed with a remnant perianth and a persistent pericarp that could be removed by scraping. The seed coat was formed by palisade cells impregnated with tannins, and the seed contained a thin layer of peripheral endosperm surrounding the embryo. In our investigation, the thickness of the pericarp (P) and/or seed coat (SC) varied among populations. Populations with higher P and/or SC thickness showed lower percentages of germination and water absorption. The combined dormancy-breaking treatment (bleach + perforated coverings + gibberellic acid) promoted dormancy release and increased germination. C. hircinum seeds showed non-deep physiological dormancy. Based on previous knowledge about quinoa, and our results, we conclude that embryo coverings, especially the seed coat, have an important role in dormancy control, imposing a mechanical restraint on radicle emergence.
publishDate 2024
dc.date.none.fl_str_mv 2024-10
2025-03-25T12:32:20Z
2025-03-25T12:32:20Z
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 http://hdl.handle.net/20.500.12123/21803
https://www.mdpi.com/2223-7747/13/19/2832
2223-7747
https://doi.org/10.3390/plants13192832
url http://hdl.handle.net/20.500.12123/21803
https://www.mdpi.com/2223-7747/13/19/2832
https://doi.org/10.3390/plants13192832
identifier_str_mv 2223-7747
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Plants 13 (19) : 2832. (October 2024)
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 12.993085

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