English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/101429
Compartir / Impacto:
Add this article to your Mendeley library MendeleyBASE
Citado 6 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)

Changes in membrane lipids and carotenoids during light acclimation in a marine cyanobacterium Synechococcus sp.

Autor Montero, Olimpio; Sánchez-Guijo, Alberto; Lubián, Luis M. ; Martínez-Rodríguez, Gonzalo
Palabras clave Galactosyl-diacyl-glycerolipids
Synechococcus sp.
Fecha de publicación sep-2012
EditorIndian Academy of Sciences
Citación Journal of Biosciences 37(4): 635-645 (2012)
ResumenTime course of carotenoid and membrane lipid variation during high light (HL) acclimation (about 85 μmol m -2 s -1), after transfer from low light (LL) (5-10 μmol m -2 s -1), was determined in a marine Synechococcus strain. High-performance liquid chromatography (HPLC) coupled to diode array detector (DAD) or electrospray ionization mass spectrometry (ESI-MS) was used for compound separation and detection. Myxoxanthophyll rose within a time interval of 8 h to 24 h after the onset of exposure to HL. β-carotene content started to decrease after 4 h of the onset of exposure to HL. Zeaxanthin content rose with exposure to HL, but it was only significant after 24 h of exposure. Carotenoid changes are in agreement with a coordinated activity of the enzymes of the myxoxanthophyll biosynthetic pathway, with no rate-limiting intermediate steps. Lipid analysis showed all species with a C18:3/C16:0 composition increased their content, the changes of PG(18:3/16:0) and MGDG(18:3/16:0) being primarily significant. Major lipid changes were also found to occur within 24 h. These changes might suggest reduction and reorganization of the thylakoid membrane structure. Hypotheses are also drawn on the role played by lipid molecule shape and their possible effect in membrane fluidity and protein accommodation. © Indian Academy of Sciences.
Versión del editorhttp://dx.doi.org/10.1007/s12038-012-9234-2
URI http://hdl.handle.net/10261/101429
Identificadoresdoi: 10.1007/s12038-012-9234-2
issn: 0250-5991
e-issn: 0973-7138
Aparece en las colecciones: (IBGM) Artículos
(ICMAN) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
membrane_lipids_Montero.pdf383,2 kBAdobe PDFVista previa
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.