Changes in hemolymph properties accompanying heat death in the desert tenebrionid beetle Centrioptera muricata
1970; Pergamon Press; Volume: 33; Issue: 4 Linguagem: Inglês
10.1016/0010-406x(70)90033-2
ISSN1879-3029
Autores Tópico(s)Physiological and biochemical adaptations
Resumo1. Fifty minutes were required to kill an entire group of Centrioptera muricata at 47°C. 2. Hemolymph osmotic pressure rose in heat-killed animals (controls, 350 m-osmoles/l.; treated, 475 m-osmoles/l.), while blood pH decreased (controls, 6·92; treated, 6·36). 3. Both uric acid (controls, 12 mg/100 ml; treated, 21 mg/100 ml) and lactic acid controls, 7 mg/100 ml; treated, 45·5 mg/100 ml) increased significantly during heat death. 4. Hemal sodium decreased (controls, 97 m-moles/l.; treated, 60 m-moles/l.) and potassium increased (controls, 21 m-moles/l.; treated, 105 m-moles/l.) in heat-killed beetles. 5. Muscle tissue cation concentration changes were the inverse of those in the hemolymph.
Referência(s)