Título:	Cell cycle control and seed development.
Autoria:	DANTE, R. A. LARKINS, B. A. SABELLI, P. A.
Afiliação:	RICARDO AUGUSTO DANTE, CNPTIA; BRIAN A. LARKINS, University of Nebraska, University of Arizona; PAOLO A. SABELLI, University of Arizona.
Ano de publicação:	2014
Referência:	Frontiers in Plant Science, v. 5, p. 1-14, Sept. 2014.
Conteúdo:	Seed development is a complex process that requires coordinated integration of many genetic, metabolic, and physiological pathways and environmental cues. Different cell cycle types, such as asymmetric cell division, acytokinetic mitosis, mitotic cell division, and endoreduplication, frequently occur in sequential yet overlapping manner during the development of the embryo and the endosperm, seed structures that are both products of double fertilization. Asymmetric cell divisions in the embryo generate polarized daughter cells with different cell fates. While nuclear and cell division cycles play a key role in determining final seed cell numbers, endoreduplication is often associated with processes such as cell enlargement and accumulation of storage metabolites that underlie cell differentiation and growth of the different seed compartments. This review focuses on recent advances in our understanding of different cell cycle mechanisms operating during seed development and their impact on the growth, development, and function of seed tissues. Particularly, the roles of core cell cycle regulators, such as cyclindependent-kinases and their inhibitors, the Retinoblastoma-Related/E2F pathway and the proteasome-ubiquitin system, are discussed in the contexts of different cell cycle types that characterize seed development. The contributions of nuclear and cellular proliferative cycles and endoreduplication to cereal endosperm development are also discussed.
Thesagro:	Endosperma
NAL Thesaurus:	Cell division Cotyledons Embryo (plant) Endopolyploidy Endosperm Testa cyclin-dependent kinase seed coat
Palavras-chave:	Ciclo celular Desenvolvimento de semente Endoreduplication Retinoblastoma-related
Digital Object Identifier:	http://dx.doi.org/10.3389/fpls.2014.00493
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPTIA)