Relationship of hemolymph phenol oxidase and mosquito age in Aedes aegypti
Autor(es): Li J,Tracy J W,Christensen B M
Resumo: Monophenol oxidase (MPO) and diphenol oxidase (DPO) activity in hemocytes and cell-free plasma perfused from 7-, 14-, 21-, and 28-day-old Aedes aegypti mosquitoes were compared. A progressive decrease of enzyme activity was detected as mosquito age increased, and this decrease was significant in both hemocytes and cell-free plasma when mosquitoes were 28 days old as compared with that found in 7-day-old mosquitoes. There was no significant difference in total hemolymph protein as mosquito age increased. Although this decreased MPO and DPO activity might be partially responsible for the reduced immune response against filarial worms previously reported for older mosquitoes, other factors undoubtedly play a significant role.
Palavras-Chave: Colucidae; Aedes aegypti; Mosquito; Phenol oxidase; Aging; Protein concentration; Melanotic encapsulation; Hemocytes; Hemolymph
Imprenta: Journal of Invertebrate Pathology, v. 60, n. 2, p. 188-191, 1992
Identificador do objeto digital: 10.1016/0022-2011(92)90095-L
Descritores: Aedes aegypti - Cell ; Aedes aegypti - Immune response ; Aedes aegypti - Pathogenesis ; Aedes aegypti - Immune response ; Aedes aegypti - Immunology
Data de publicação: 1992
