Publication: Mecanismos reguladores del proceso de aclimatación a las temperaturas bajas en Arabidopsis mediados por RNAS no codificantes largos
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2020-03-18
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Universidad Complutense de Madrid
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Abstract
El estrés producido por las temperaturas bajas afecta de un modo importante a la supervivencia, al desarrollo y a la distribución de las plantas y limita el rendimiento de los cultivos. En las regiones templadas, muchas especies de plantas han desarrollado una respuesta adaptativa, denominada proceso de aclimatación a las temperaturas bajas, mediante el cual aumentan su tolerancia a las temperaturas de congelación después de estar expuestas durante unos días a temperaturas bajas entre 0 y 10°C. El proceso de aclimatación es muy complejo y lleva consigo importantes cambios fisiológicos y bioquímicos, la mayor parte de ellos regulados mediante cambios en la expresión génica. Entender los mecanismos moleculares que median estos cambios es de interés tanto básico como aplicado...
Low temperature stress has major effects on plant development, survival, and distribution limiting crop yield. In temperate regions, many plant species have developed an adaptive response termed cold acclimation through which their tolerance to low temperature is in-creased after being exposed to temperatures in the range of 0 to 10°C for a few days. Cold acclimation is a very complex process involving important physiological and bio-chemical changes that are largely mediated by changes in gene expression. Understand-ing the molecular mechanisms underpinning these changes is a goal for both fundamen-tal and applied research. Long non-coding RNAs (lncRNAs), defined as RNA molecules longer than 200 base pairs in length without significant coding potential, have emerged lately as key players in eukaryotic gene expression regulation. In plants, multiple tran-scriptomic analysis have identified thousands of lncRNAs but their functional role remains to be described for the immense majority of them...
Low temperature stress has major effects on plant development, survival, and distribution limiting crop yield. In temperate regions, many plant species have developed an adaptive response termed cold acclimation through which their tolerance to low temperature is in-creased after being exposed to temperatures in the range of 0 to 10°C for a few days. Cold acclimation is a very complex process involving important physiological and bio-chemical changes that are largely mediated by changes in gene expression. Understand-ing the molecular mechanisms underpinning these changes is a goal for both fundamen-tal and applied research. Long non-coding RNAs (lncRNAs), defined as RNA molecules longer than 200 base pairs in length without significant coding potential, have emerged lately as key players in eukaryotic gene expression regulation. In plants, multiple tran-scriptomic analysis have identified thousands of lncRNAs but their functional role remains to be described for the immense majority of them...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Químicas, Departamento de Bioquímica y Biología Molecular, leída el 22/11/2019