Buscar
Mostrando ítems 1-10 de 20
Senescence-Associated Vacuoles, a Specific Lytic Compartment for Degradation of Chloroplast Proteins?
(Molecular Diversity Preservation International, 2014-11)
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 ...
Chloroplast protein degradation in senescing leaves: Proteases and lytic compartments
(Frontiers Media, 2019-06-19)
Leaf senescence is characterized by massive degradation of chloroplast proteins, yet the protease(s) involved is(are) not completely known. Increased expression and/or activities of serine, cysteine, aspartic, and ...
In vivo inhibition of cysteine proteases provides evidence for the involvement of ‘senescence-associated vacuoles’ in chloroplast protein degradation during dark-induced senescence of tobacco leaves
(Oxford University Press, 2013-07)
Breakdown of leaf proteins, particularly chloroplast proteins, is a massive process in senescing leaves. In spite of its importance in internal N recycling, the mechanism(s) and the enzymes involved are largely unknown. ...
Activities of vacuolar cysteine proteases in plant senescence
(Springer, 2018)
Plant senescence is accompanied by a marked increase in proteolytic activities, and cysteine proteases (Cys-protease) represent the prevailing class among the responsible proteases. Cys-proteases predominantly locate to ...
Extra-plastidial degradation of chlorophyll and photosystem I in tobacco leaves involving "Senescence-associated- vacuoles"
(Wiley Blackwell Publishing, Inc, 2019-04-15)
Chlorophyll (Chl) loss is the main visible symptom of senescence in leaves. The initial steps of Chl degradation operate within the chloroplast, but the observation that ‘senescence-associated vacuoles’ (SAVs) contain Chl ...
The degradation of chloroplast components during postharvest senescence of broccoli florets is delayed by low-intensity visible light pulses
(Elsevier Science, 2020-10)
Senescence in harvested green organs, such as broccoli inflorescences, is a highly regulated process characterized by a massive degradation of chloroplast components. The dismantling of the chloroplast involves small ...
Cellular and molecular aspects of quinoa leaf senescence
(Elsevier Ireland, 2015-09)
During leaf senescence, degradation of chloroplasts precede to changes in nuclei and other cytoplasmic organelles, RuBisCO stability is progressively lost, grana lose their structure, plastidial DNA becomes distorted and ...