Free amino acids and related compounds in the tissues of ageing female Aedes aegypti mosquitoes.
Autor(es): Thayer D W; Terzian L A
Resumo: Analysis of whole body extracts of Aedes aegypti mosquitoes by means of ion-exchange chromatography revealed the presence of thirty-three ninhydrin-positive substances in the free amino acid pool of the tissues. In order of decreasing concentration the most abundant free amino acids were alanine, proline, histidine, ?-alanine, glutamic acid, arginine, asparagine and/or glutamine, aspartic acid, serine, and glycine. On a diet of 4% sucrose the titres of a peptide, threonine, serine, asparagine and/or glutamine, valine, isoleucine, leucine, tyrosine, phenylalanine, lysine, tryptophan, hisitidine, and arginine were significantly lower 7 days after emergence than at emergence. The titres of taurine, proline, and ?-alanine were significantly higher in older adult mosquitoes than in newly emerged mosquitoes. Aspartic acid, glutamic acid, glycine, and methionine were present in the highest concentration among the amino acids released by acid hydrolysis of the protein-free tissue extracts. There was no correlation between the distribution and concentration of the free amino acids and the amino acids of the soluble proteins.
Imprenta: Journal of Insect Physiology, v. 16, n. 1, p. 1-15, 1970
Identificador do objeto digital: https://doi.org/10.1016/0022-1910(70)90107-1
Descritores: Aedes aegypti - Public health
Data de publicação: 1970
