dc.creator | Domínguez, Fernando | es |
dc.creator | Cejudo Fernández, Francisco Javier | es |
dc.date.accessioned | 2016-11-17T13:44:13Z | |
dc.date.available | 2016-11-17T13:44:13Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Domínguez, F. y Cejudo Fernández, F.J. (2014). Programmed cell death (PCD): an essential process of cereal seed development and germination. Frontiers in plant science, 5, 1-11. | |
dc.identifier.issn | 1664-462X | es |
dc.identifier.uri | http://hdl.handle.net/11441/48825 | |
dc.description.abstract | The life cycle of cereal seeds can be divided into two phases, development and germination,
separated by a quiescent period. Seed development and germination require the growth
and differentiation of new tissues, but also the ordered disappearance of cells, which
takes place by a process of programmed cell death (PCD). For this reason, cereal seeds
have become excellent model systems for the study of developmental PCD in plants. At
early stages of seed development, maternal tissues such as the nucellus, the pericarp,
and the nucellar projections undergo a progressive degeneration by PCD, which allows
the remobilization of their cellular contents for nourishing new filial tissues such as the
embryo and the endosperm. At a later stage, during seed maturation, the endosperm
undergoes PCD, but these cells remain intact in the mature grain and their contents will
not be remobilized until germination. Thus, the only tissues that remain alive when seed
development is completed are the embryo axis, the scutellum and the aleurone layer.
In germinating seeds, both the scutellum and the aleurone layer play essential roles in
producing the hydrolytic enzymes for the mobilization of the storage compounds of the
starchy endosperm, which serve to support early seedling growth. Once this function
is completed, scutellum and aleurone cells undergo PCD; their contents being used to
support the growth of the germinated embryo. PCD occurs with tightly controlled spatialtemporal
patterns allowing coordinated fluxes of nutrients between the different seed
tissues. In this review, we will summarize the current knowledge of the tissues undergoing
PCD in developing and germinating cereal seeds, focussing on the biochemical features of
the process.The effect of hormones and redox regulation on PCD control will be discussed. | es |
dc.description.sponsorship | España , Ministerio de Ciencia e Innovación BIO2010-15430 | es |
dc.description.sponsorship | España, Junta de Andalucía BIO-182 and CVI-5919 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Frontiers media | es |
dc.relation.ispartof | Frontiers in plant science, 5, 1-11. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | development germination | es |
dc.subject | programmed cell death | es |
dc.subject | seed | es |
dc.title | Programmed cell death (PCD): an essential process of cereal seed development and germination | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular | es |
dc.relation.projectID | EsBIO2010-15430 | es |
dc.relation.projectID | BIO-182 and CVI-5919 | es |
dc.relation.publisherversion | http://journal.frontiersin.org/article/10.3389/fpls.2014.00366/full | es |
dc.identifier.doi | 10.3389/fpls.2014.00366 | es |
idus.format.extent | 11 p. | es |
dc.journaltitle | Frontiers in plant science | es |
dc.publication.volumen | 5 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 11 | es |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/48825 | |
dc.contributor.funder | Ministerio de Ciencia e Innovación (MICIN). España | |
dc.contributor.funder | Junta de Andalucía | |