Zobrazeno 1 - 10
of 118
pro vyhledávání: '"R.G.H. Downer"'
Publikováno v:
Pesticide Biochemistry and Physiology. 47:1-7
The interaction of dihydrooxadiazine insecticides with the octopamine-sensitive adenylate cyclase complex was investigated in homogenates of the two-spotted spider mite, Tetranychus urticae Koch. All tested compounds except a 3-fluoro derivative (com
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 70:795-798
1. 1. The relative percentage composition of palmitic acid, palmitoleic acid, stearic acid, oleic acid, arachidic acid and eicosaenoic acid in plasma of Pagophilus groenlandicus was studied during the post-weaning fast. 2. 2. Plasma fatty acid levels
Publikováno v:
Environmental Toxicology and Chemistry. 5:289-294
Adult American flagfish (Jordanella floridae) were exposed for 2 h to 1.6, 1.9, 3.1 or 5.1 mg L−1 of the chlorinated hydrocarbon insecticide methoxychlor. Control and ethanol-carrier control treatments were also maintained. Fish were sampled at 2,
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 67:179-182
1. 1. Carbohydrate and triacylglycerol levels of selected tissues were determined for pups and adults of the northwest Atlantic harp seal. 2. 2. Liver carbohydrate levels remain constant during the first week of neonatal development but increase mark
Autor:
V.L. Kallapur, R.G.H. Downer
Publikováno v:
Journal of Thermal Biology. 6:189-194
The lipid composition of flight muscle mitochondria was determined in adult male Schistocerca gregaria acclimated for 30 days at 31°C and 45°C respectively. Locusts held at 31°C showed lower levels of phosphatidylcholine and higher levels of phosp
Autor:
Alan G. D. Hoffman, R.G.H. Downer
Publikováno v:
Lipids. 14:893-899
The triacylglycerol-hydrolyzing capacity of tissue homogenates has been investigate for midgut, fat body, thoracic musculature and haemolymph of the American cockroach, Periplaneta americana. The greatest lipolytic activity was demonstrated in midgut
Autor:
John E. Steele, R.G.H. Downer
Publikováno v:
General and Comparative Endocrinology. 19:259-265
The corpus cardiacum-allatum complex of the cockroach, Periplaneta americana , contains a factor which causes decreased levels of triglycerides and diglycerides in hemolymph. Coincident with these changes are an increase in the concentration of the g
Autor:
R.G.H. Downer, J.E. Steele
Publikováno v:
Journal of Insect Physiology. 19:523-532
The haemolymph of the cockroach, Periplaneta americana, has been shown to possess pronounced lipolytic activity. The enzyme may be considered a ‘true’ lipase because of its ability to hydrolyse long chain fatty acid glycerides. The enzyme exhibit
Autor:
R.G.H. Downer, E.M. Pantelouris
Publikováno v:
Journal of Insect Physiology. 15:2357-2362
Changes during metamorphosis in the esterase zymogram of Drosophila immigrans have been studied by starch-gel electrophoresis. The changes include increases (and some decreases) of the relative intensity of certain esterase zones. Some fractions are
Autor:
A.G.D. Hoffman, R.G.H. Downer
Publikováno v:
Comparative biochemistry and physiology. B, Comparative biochemistry. 48(2)
1. 1. Evolution of 14CO2 from 1-14C-acetate was studied in the adult male cockroach, Periplaneta americana. 2. 2. Radiolabelled carbon dioxide is rapidly evolved when the substrate is injected abdominally or administered by feeding, though some delay