RT info:eu-repo/semantics/article
T1 Thermal behavior of calafate (Berberis buxifolia) seeds
T2 Comportamiento térmico de las semillas de calafate (Berberis buxifolia)
A1 Martín Ramos, Pablo
A1 Martín Gil, Jesús
A1 Ramos Sánchez, María del Carmen
A1 Hernández Navarro, Salvador
A1 Martín Gil, Jesús
K1 Acidos grasos
K1 Semillas
K1 Espectroscopia de infrarrojos
K1 Plantas, efectos de la temperatura sobre las
K1 Calorimetría
K1 Calafate
K1 5102.01 Agricultura
K1 3103.09 Cultivos de Plantas
AB Low temperature is the most important factor limiting the distribution of plants. In this study the low temperature thermal behavior of calafate seeds was analyzed by Differential Scanning Calorimetry (DSC), and a vibrational characterization of their different components was conducted by infrared spectroscopy (FTIR). In cold-acclimated plants, such as calafate, the total percentage of olyunsaturatedfatty acids in their seeds is significantly higher than that of saturated fatty acids. Successive freezing-thawing cycles lead to increased formation of linoleic (LA) and linolenic (LNA) α-crystals. This process would barely modify the phase-transition temperature of the lipid membrane but would lead to an increase in the membrane fluidity (LNA would make the cell membranes more fluid during seeddevelopment). It seems that processes in membranes rather than in the glassy cytoplasm may determine the cooling resistance.
PB Universidad Austral de Chile
SN 0717-9200
YR 2016
FD 2016
LK https://uvadoc.uva.es/handle/10324/56001
UL https://uvadoc.uva.es/handle/10324/56001
LA eng
NO Bosque, 2016, Vol. 37, Nº. 3, págs. 625-630,
NO Producción Científica
DS UVaDOC
RD 24-nov-2024