Senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?

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, "senesce...

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Autores principales: Carrión, Cristian Antonio, Martínez, Dana Ethel, Costa, María Lorenza, Guiamet, Juan José
Formato: Articulo Revision
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Naturales
Ciencias Agrarias
Senescence
Transcription factors
Leaf senescence
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85195
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85195
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Ciencias Agrarias
Senescence
Transcription factors
Leaf senescence
spellingShingle Ciencias Naturales
Ciencias Agrarias
Senescence
Transcription factors
Leaf senescence
Carrión, Cristian Antonio
Martínez, Dana Ethel
Costa, María Lorenza
Guiamet, Juan José
Senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?
topic_facet Ciencias Naturales
Ciencias Agrarias
Senescence
Transcription factors
Leaf senescence
description 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.
format Articulo
Revision
author Carrión, Cristian Antonio
Martínez, Dana Ethel
Costa, María Lorenza
Guiamet, Juan José
author_facet Carrión, Cristian Antonio
Martínez, Dana Ethel
Costa, María Lorenza
Guiamet, Juan José
author_sort Carrión, Cristian Antonio
title Senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?
title_short Senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?
title_full Senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?
title_fullStr Senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?
title_full_unstemmed Senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?
title_sort senescence-associated vacuoles, a specific lytic compartment for degradation of chloroplast proteins?
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85195
work_keys_str_mv AT carrioncristianantonio senescenceassociatedvacuolesaspecificlyticcompartmentfordegradationofchloroplastproteins
AT martinezdanaethel senescenceassociatedvacuolesaspecificlyticcompartmentfordegradationofchloroplastproteins
AT costamarialorenza senescenceassociatedvacuolesaspecificlyticcompartmentfordegradationofchloroplastproteins
AT guiametjuanjose senescenceassociatedvacuolesaspecificlyticcompartmentfordegradationofchloroplastproteins
bdutipo_str Repositorios
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