caa a22 4500 477084281 CHVBK 20180405111458.0 cr unu---uuuuu 170330e19960501xx s 000 0 eng 10.1007/BF01919319 doi (NATIONALLICENCE)springer-10.1007/BF01919319 Adenine nucleotide metabolism during anoxia and postanoxic recovery in insects [Elektronische Daten] [W. Weyel, G. Wegener] Severe hypoxia (anoxia), if maintained for more than a few minutes, causes irreversible damage in humans and other mammals. Why mammals are so vulnerable to anoxia is not fully understood. It is therefore of interest to study animals that are more tolerant of anoxia in order to identify physiological and metabolic properties that are correlated with a high tolerance of anoxia. Insects have high metabolic rates and their energy metabolism is dependent on aerobic ATP production. In insects, as in mammals, anoxia causes a rapid breakdown of physiological function, resulting in a state similar to rigor mortis. This is accompanied by a precipitous decrease in metabolic rate. In contrast to mammals, however, insects can survive anoxia for many hours and recover spontaneously and completely when air is again available. We have followed the metabolism of adenine nucleotides in locust tissues (mainly in the flight muscle) over 3 h of anoxia and during recovery from 1 h of anoxia. The content of ATP in the flight muscle dropped to 1% of normal during 2 h of anoxia. The main product was AMP which increased in content more than 20-fold. Some of the AMP was deaminated to IMP and this was further dephosphorylated to inosine. Altogether less than 30% of the total adenine nucleotides were degraded during 3 h of anoxia and this may contribute to the amazing ability of insects to recover from prolonged anoxia. Birkhäuser Verlag, 1996 Hypoxia/anoxia nationallicence insects nationallicence mammals nationallicence metabolism of adenine nucleotides nationallicence tissue damage nationallicence oxygen-free radicals nationallicence Weyel W. Institut für Zoologie, Johannes-Gutenberg-Universität, Saarstrasse 21, D-55099, Mainz, (Germany) aut Wegener G. Institut für Zoologie, Johannes-Gutenberg-Universität, Saarstrasse 21, D-55099, Mainz, (Germany) aut Experientia Birkhäuser-Verlag 52/5(1996-05-01), 474-480 0014-4754 52:5<474 1996 52 18 https://doi.org/10.1007/BF01919319 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01919319 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Weyel W. Institut für Zoologie, Johannes-Gutenberg-Universität, Saarstrasse 21, D-55099, Mainz, (Germany) aut NATIONALLICENCE 700 1- Wegener G. Institut für Zoologie, Johannes-Gutenberg-Universität, Saarstrasse 21, D-55099, Mainz, (Germany) aut NATIONALLICENCE 773 0- Experientia Birkhäuser-Verlag 52/5(1996-05-01), 474-480 0014-4754 52:5<474 1996 52 18 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer