Some effects of diazinon on the microflora of submerged soils
SummaryThe application of diazinon, an organophosphorus insecticide, at the rate of 2 kg and 20 kg active ingredient per hectare to submerged Maahas clay significantly stimulated the actinomycete population. A distinct zone of brown pigmentation formed in that part of the profile commonly referred to as the oxidized layer. A profuse growth of actinomycetes developed from the soil samples of this pigmented zone when streaked onto the nutrient agar. A visible increase in algal populations was noted in the standing water of the diazinon-treated soil.
Effects of Ekalux Ec-25 on akinete germination and sporulation ofPithophora kewensis
The effect of the organophosphorus insecticide Ekalux Ec-25 (quinalphos) was studied on akinete germination, and sporulation of the green algaPithophora kewensis (Cladophorales). Initiation of akinete germination was delayed by 1–3 d with 0.025–0.1% concentrations of the pesticide used. The percentage of akinete germination was found to be markedly affected by the treatment with insecticide, except with the concentration of 0.25% Ekalux Ec-25, where percent germination was observed to be higher than in the control. Generally, the time taken for the initiation of akinete formation increased and percent sporulation decreased with the increase of concentrations from 0.025 to 0.1% of Ekalux Ec-25.
Metabolism of individual fatty acids by sheep depot adipose tissue in vivo and in vitro.
1. 
1. Sheep adipose tissue and plasma have high stearate and low unsaturated fatty acid content compared to rat, dog and man. 
 
2. 
2. In control animals in vivo uptake as well as release of various fatty acids by adipose tissue could be demonstrated. In vitro net release occurred. Fasting resulted in a decrease in tissue stearate and increased release of fatty acids. Adrenaline and noradrenaline had minimal lipolytic effect in vivo and in vitro. 
 
3. 
3. Variations in the turnover rate of individual fatty acids were observed.