Por favor, use este identificador para citar o enlazar este ítem: https://repositorio.unimoron.edu.ar/handle/10.34073/295
Título : Efectos de la radiación UV solar y temperatura en ácidos grasos de Microcystis aeruginosa
Otros títulos : Solar UV radiation and temperature effects on fatty acids of Microcystis aeruginosa
Autor : de la Rosa, Florencia
De Troch, Marleen
Hernando, Marcelo
Cervino, Claudio
Malanga, Gabriela
Palabras clave : ω6/ω3 ratio
climate change
oxidative stress
Fecha de publicación : Oct-2022
Editorial : Universidad de Morón
Citación : Ricum 11;1
Resumen : One of the most common regulatory strategies to adapt to stress is by adjusting the degree of fatty acids (FAs) unsaturation. The ability to modify the type and quantity of cellular lipids allows cyanobacteria to avoid damage and be protected against the effects of extreme conditions. The combined effects of increased temperature and solar UVR on Microcystis aeruginosa cultures were analyzed in terms of FA content and lipid damage. The M. aeruginosa culture was incubated to natural sunlight in two outdoor water baths at 26 and 29°C during 4 days. Cells were exposed to both temperatures and three radiation treatments: full radiation (UVBR + UVAR + Photosynthetic Available Radiation, PAR), UVAR+PAR and only PAR (control). During the first two exposure days, UVAR modulates lipid damage as a function of temperature in consequence of an increase in reactive species and the FAs composition. After four exposure days the cells were adapted to both increased temperature and UVR. Thus, increased temperature and UVR changes could impact the ω6/ω3 PUFAs balance of cyanobacteria. This response can further be transferred from cyanobacteria to higher trophic levels and can influence the overall functioning of freshwater bodies.
URI : https://repositorio.unimoron.edu.ar/handle/10.34073/295
ISSN : 2591-5444
Aparece en las colecciones: RICUM N ° 11 - Año 6 - Octubre 2022

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
1-Efectos de la radiación UV solar y temperatura en ácidos.pdfSecyt-UM2,23 MBAdobe PDFVisualizar/Abrir

Este ítem está protegido por copyright original

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