1. 1.|Alterations in the fatty acid composition of microsomes were most marked in the exponential phase of both 39.5- or 15°C- grown Tetrahymena pyriformis NT-1.
2. 2.|Activities of palmitoyl-CoA and stearoyl-CoA desaturases were lower in 15°C cells than in 39.5°C cells, while the activity of oleoyl-CoA desaturase was higher in 15°C cells.
3. 3.|Activities of the terminal component of the desaturation system as well as all three desaturases (palmitoyl-CoA, stearoyl-CoA, oleoyl-CoA) were higher in the exponential phase than in the stationary phase for cells grown at both temperatures.
4. 4.|NAD(P)H-cytochrome c reductase activity and cytochrome b5 content were reduced whereas NADH-ferricyanide reductase activity was increased in the stationary phase at both 39.5 and 15°C.
Author Keywords: Cyanide sensitive factor (CSF); cell growth in different temperatures; Δ9- and Δ12-desaturases; microsomal electron transport; temperature adaptation; Tetrahymena; protozoa 相似文献
The effect of certain inorganic and coordinated nickel compounds on the resistance to different destructive substances, rheological
properties, and functional activity of healthy human red blood cells (RBC), was investigated. It is shown that nickel compounds
affect the erythrocyte membrane lipid bilayer, as well as membrane proteins to various extents, depending on the type of compounds
used. In general, the acceleration of erythrocyte aging was observed to be more pronounced in young erythrocytes. The observed
results suggest that nickel compounds decrease water permeability across erythrocyte membranes. Almost all the investigated
nickel compounds decrease erythrocyte thermostability, deformability, and the rate of O2 release by erythrocytes. 相似文献
Multiple sequence alignments are successfully applied in many studies for under- standing the structural and functional relations among single nucleic acids and pro- tein sequences as well as whole families. Because of the rapid growth of sequence databases, multiple sequence alignments can often be very large and difficult to visualize and analyze. We offer a new service aimed to visualize and analyze the multiple alignments obtained with different external algorithms, with new features useful for the comparison of the aligned sequences as well as for the creation of a final image of the alignment. The service is named FASMA and is available at http: //bioinformatica.isa.cnr.it /FASMA /. 相似文献