16 research outputs found
Developmental ‘Changes in Activities of Several Enzymes Involved in Glycolysis and TCA Cycle during the Pupal Period of Bombyx mori
Estimation of dietary intake and sources of organohalogenated contaminants among infants : 24-h duplicate diet survey in Fukuoka, Japan
Cholinergic EPSCs and their potentiation by bradykinin in single paratracheal ganglion neurons attached with presynaptic boutons
Effects of suplatast tosilate on acutely dissociated sensory and paratracheal ganglia neurons
Developmental ‘Changes in Activities of Several Enzymes Involved in Glycolysis and TCA Cycle during the Pupal Period of Bombyx mori
In order to elucidate metabolic regulation with regard to carbohydrates and lipids during metamorphosis of Bombyx mori, eight enzymes related to glycolysis and TCA cycle were measured for their levels of activity during the period from the day of pupal ecdysis to 2 days after adult emergence, by use of crude extract from the whole bodies of the insect. The resulting patterns could be grossly divided into two groups. Glucose-B-phosphate dehydrogenase, NADP-specific isocitrate dehydrogenase, malic enzyme, hexokinase and pyruvate kinase were characterized by their apparent high activity levels during larval-pupal development followed by low levels at emergence. On the contrary, aconitase, NAD-specific isocitrate dehydrogenase and malate dehydrogenase were characterized by their apparent low levels during pupal period and by an abrupt increase in activity before emergence. The roles of these enzymes in metamorphosis are briefly discussed