The effect of cold acclimation and deacclimation on cold tolerance, trehalose and free amino acid levels in Sitophilus granarius and Cryptolestes ferrugineus (Coleoptera)

acide glutamique alanina alanine amino acids asparagina asparagine chemical composition cold composition chimique cryptolestes ferrugineus frio froid glutamic acid glutamina glutamine leucina leucine lisina lysine phosphatide phospholipids prolina proline resistencia a la temperatura sitophilus granarius temperatura temperature temperature resistance tirosina trehalosa trehalose tyrosine