Histone acetylation dynamics regulating plant development and stress responses

Cellular and Molecular Life Sciences - Crop productivity is directly dependent on the growth and development of plants and their adaptation during different environmental stresses. Histone...     

Emblica officinalis reduces serum, aortic and hepatic cholesterol in rabbits

Emblica officinalis reduced serum cholesterol (p less than 0.001), aortic cholesterol (p less than 0.001) and hepatic cholesterol (p less than 0.001) significantly in rabbits. Emblica officinalis did not influence euglobulin clot lysis time, platelet adhesiveness or serum triglyceride levels.     

Hypotensive activity of some dihydroxycoumarins and their congeners

Summary Evaluation of the hypotensive activity of dihydroxy coumarins and their congeners reveal that the naturally occurring dimethoxy coumarin Scoparone has maximal activity, more significant than L--methyl dopa. Structure activity relationship studies are reported with an attempt to offer a probable mechanism of action.     

Hypotensive activity of some dihydroxycoumarins and their congeners.

Evaluation of the hypotensive activity of dihydroxy coumarins and their congeners reveal that the naturally occurring dimethoxy coumarin Scoparone has maximal activity, more significant than L-alpha-methyl dopa. Structure activity relationship studies are reported with an attempt to offer a probable mechanism of action.     

Emblica officinalis reduces serum,aortic and hepatic cholesterol in rabbits

Summary Emblica officinalis reduced serum cholesterol (p<0.001), aortic cholesterol (p<0.001) and hepatic cholesterol (p<0.001) significantly in rabbits.Emblica officinalis did not influence euglobulin clot lysis time, platelet adhesiveness or serum triglyceride levels.     

Effect of indole-3-acetic acid on the histology of gonads and their development inDacus dorsalis hendel

Summary The paper deals with the effects of indole-3 acetic acid on the histology of the gonads and their development inDacus dorsalis Hendel (Diptera; Tephritidae). Flies were topically treated with solutions of different concentrations. This treatment effectively reduced the size of gonads when applied to newly-emerged flies. Most severely affected parts were the germinal regions of the gonads. The number of sperm bundles was much reduced in the treated testes as compared to controlled ones.Acknowledgment. The authors are thankful to Prof. H. O. Agarwal, Department of Bio-Sciences, for providing the necessary laboratory facilities.     

Infecundity and dominant lethal mutations induced inMusca domestica L. by sodium azide (NaN3)

Summary Results of our study suggest that sodium azide is effective in the induction of sterility and dominant lethal mutations in both sexes ofM. domestica L. When treated males were crossed with nontreated females, 100% dominant lethal mutations and 72.3% infecundity were found, whereas in the crosses of nontreated males and treated females, 82.5% dominant lethal mutations and 33.1% infecundity were found. This showed that males are more sensitive to sodium azide than females.     

Mating competitiveness and fertility of thiotepa-sterilized flies

Summary In the present investigation, an attempt has been made to study the mating competitiveness and fertility of males as well as females ofDacus dorsalis Hendel (Diptera: Tephritidae) treated topically with thiotepa. In the mixed population, treated flies of either sex were found to be sexually more vigorous than untreated flies. However when the mating competitiveness of either sex was determined separately using various methods, treated males were found not to differ significantly in sexual competitiveness from untreated flies. Receptivity of treated and untreated females to males was also studied by the single choice method. Thiotepa-treated and untreated females were found to be equally receptive to males.