Alpha-amylase isoform pattern changes during the winter season in the winter-resting stem inter-nodes of Vitis vinifera | [Changements du modele isoforme de l'alpha-amylase pendant l'hiver dans les entrenoeuds de tige en repos hivernal de Vitis vinifera]

amidon amilasas amylase amylases chemical composition composition chimique dormance dormancy frost gel grapevines helada hiver invierno isoenzimas isoenzyme isoenzymes resistencia a la temperatura starch stems sucre sugar tallo temperature resistance tige vid vigne vitis vinifera winter