Mostrar el registro sencillo del ítem

dc.contributor.authorRabert, Claudia
dc.contributor.authorInostroza, Karla B.
dc.contributor.authorBravo, Silvana
dc.contributor.authorSepúlveda B., Néstor
dc.contributor.authorBravo, L. A.
dc.date.accessioned2020-11-10T16:19:31Z
dc.date.available2020-11-10T16:19:31Z
dc.date.issued2020-10-24
dc.identifier10.3390/plants9111431
dc.identifier.issn22237747
dc.identifier.urihttps://hdl.handle.net/20.500.12728/7161
dc.description.abstractLipids are fundamental components of cell membranes and play a significant role in their integrity and fluidity. Alteration in lipid composition of membranes has been reported to be a major response to abiotic environmental stresses. This work was focused on the characterization of frond lipid composition and membrane integrity during a desiccation–rehydration cycle of two filmy fern species with contrasting desiccation tolerance: Hymenophyllum caudiculatum (less tolerant) and Hymenophyllum plicatum (more tolerant). The relative water content decreased without differences between species when both filmy ferns were subjected to desiccation. However, H. plicatum reached a higher relative water content than H. caudiculatum after rehydration. Fatty acids profiles showed the presence of a very long chain polyunsaturated fatty acid during the desiccation–rehydration cycle, with eicosatrienoic acid being the most abundant. Additionally, propidium iodide permeation staining and confocal microscopy demonstrated that, following the desiccation–rehydration cycle, H. plicatum exhibited a greater membrane integrity than H. caudiculatum. The lack of some very long chain fatty acids such as C22:1n9 and C24:1n9 in this species contrasting with H. plicatum may be associated with its lower membrane stability during the desiccation–rehydration cycle. This report provides the first insight into the fatty acid composition and dynamics of the membrane integrity of filmy ferns during a desiccation–rehydration cycle. This could potentially play a role in determining the different levels of desiccation tolerance and microhabitat preferences exhibited by Hymenophyllaceae species.es_ES
dc.language.isoenes_ES
dc.publisherMDPI AGes_ES
dc.subjectDesiccation tolerant plantes_ES
dc.subjectFatty acid profilees_ES
dc.subjectFilmy fernes_ES
dc.subjectHymenophyllum caudiculatumes_ES
dc.subjectHymenophyllum plicatumes_ES
dc.subjectLipid contentes_ES
dc.subjectMembrane integrityes_ES
dc.subjectVery long chain polyunsaturated omega-3 fatty acidses_ES
dc.titleExploratory study of fatty acid profile in two filmy ferns with contrasting desiccation tolerance reveal the production of very long chain polyunsaturated omega-3 fatty acidses_ES
dc.typeArticlees_ES


Ficheros en el ítem

Thumbnail

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem