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Página principal > Artículos > Artículos publicados > Emerging roles for conjugated sterols in plants |
Fecha: | 2017 |
Resumen: | In plants, sterols are found in free form (free sterols, FSs) and conjugated as steryl esters (SEs), steryl glycosides (SGs) and acyl steryl glycosides (ASGs). Conjugated sterols are ubiquitously found in plants but their relative contents highly differ among species and their profile may change in response to developmental and environmental cues. SEs play a central role in membrane sterol homeostasis and also represent a storage pool of sterols in particular plant tissues. SGs and ASGs are main components of the plant plasma membrane (PM) that specifically accumulate in lipid rafts, PM microdomains known to mediate many relevant cellular processes. There are increasing evidences supporting the involvement of conjugated sterols in plant stress responses. In spite of this, very little is known about their metabolism. At present, only a limited number of genes encoding enzymes participating in conjugated sterol metabolism have been cloned and characterized in plants. The aim of this review is to update the current knowledge about the tissue and cellular distribution of conjugated sterols in plants and the enzymes involved in their biosynthesis. We also discuss novel aspects on the role of conjugated sterols in plant development and stress responses recently unveiled using forward- and reverse-genetic approaches. |
Ayudas: | Ministerio de Economía y Competitividad SEV-2015-0533 Ministerio de Economía y Competitividad AGL2013-43522-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1434 |
Derechos: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Lengua: | Anglès, català |
Documento: | Article ; recerca ; Versió publicada |
Materia: | Sterol ; Conjugated sterol ; Steryl ester ; Steryl glycoside ; Acyl steryl glycoside |
Publicado en: | Progress in lipid research, Vol. 67 (2017) , p. 27-37, ISSN 0163-7827 |
11 p, 563.8 KB |