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Senescence-Associated Vacuoles, a Specific Lytic Compartment for Degradation of Chloroplast Proteins?
Carrión, Cristian A; Martínez, Dana E; Costa, M Lorenza; Guiamet, Juan José.
Afiliação
  • Carrión CA; Instituto de Fisiología Vegetal (INFIVE, CONICET-UNLP), cc327, La Plata 1900, Argentina. ccarrion@agro.unlp.edu.ar.
  • Martínez DE; Instituto de Fisiología Vegetal (INFIVE, CONICET-UNLP), cc327, La Plata 1900, Argentina. danamartinez@conicet.gov.ar.
  • Costa ML; Instituto de Fisiología Vegetal (INFIVE, CONICET-UNLP), cc327, La Plata 1900, Argentina. lorenzacosta@agro.unlp.edu.ar.
  • Guiamet JJ; Instituto de Fisiología Vegetal (INFIVE, CONICET-UNLP), cc327, La Plata 1900, Argentina. jguiamet@fcnym.unlp.edu.ar.
Plants (Basel) ; 3(4): 498-512, 2014 Nov 11.
Article em En | MEDLINE | ID: mdl-27135516
Degradation of chloroplasts and chloroplast components is a distinctive feature of leaf senescence. In spite of its importance in the nutrient economy of plants, knowledge about the mechanism(s) involved in the breakdown of chloroplast proteins is incomplete. A novel class of vacuoles, "senescence-associated vacuoles" (SAVs), characterized by intense proteolytic activity appear during senescence in chloroplast-containing cells of leaves. Since SAVs contain some chloroplast proteins, they are candidate organelles to participate in chloroplast breakdown. In this review we discuss the characteristics of SAVs, and their possible involvement in the degradation of Rubisco, the most abundant chloroplast protein. Finally, SAVs are compared with other extra-plastidial protein degradation pathways operating in senescing leaves.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Risk_factors_studies Idioma: En Revista: Plants (Basel) Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Argentina País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Risk_factors_studies Idioma: En Revista: Plants (Basel) Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Argentina País de publicação: Suíça