JUHEINI AMIN

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The effect of substrate manganese on tissue manganese levels and activity of the indoleacetic acid (IAA)-oxidase system of cotton (Gossypium hirsutum, L.) was investigated. A sand culture technique was used with 1, 3, 9, 27 and 81 mg manganese (MnSO(4)) per liter nutrient solution applied in various experiments.The following relationships held for both(More)
Objective: Herbal and synthetic cosmetic products have been developed to unravel problem of hair loss, yet synthetics are potential to give side effects (e.g. local irritation), whilst herbal products are generally safer. Green tea is one of food derived active ingredient potential as topical hair grower. The purpose of this study is to formulate(More)
Remifentanil (G187084) is a phenylaminopiperidine derivative of the fentanyl type with potent analgesic activity. The compound has an N-substituted labile methyl ester which is highly susceptible to chemical and enzymatic hydrolysis resulting in a short half-life for the drug. A sensitive capillary GC-HRMS-SIM method for the determination of remifentanil in(More)
Cotton plants (Gossypium hirsutum. Linn. var. Sankar 4) were grown at normal and toxic levels of substrate manganese, and the altered metabolism of manganese toxic plants was studied. The tissues of plants exposed to toxic levels of manganese had higher activities of peroxidase and polyphenol oxidase, and the activities of catalase, ascorbic acid oxidase,(More)
Like many crops of tropical origin, cotton is affected unfavorably by low non-freezing temperatures 1o. Cotton seed germinates poorly below 18°C 5 and at night temperatures below 15°C, boll and seed development is retarded 10. Prolonged periods at this temperature result in considerable leaf fall; and temperatures in the range of 0-7°C may produce rapid(More)
In sand culture the optimum nutrient solution manganese concentration for cotton is on the order of 3 ppm. Good growth and fruiting were obtained at 27 ppm while 81 ppm proved to be highly toxic. Cotton plants containing 3000 ppm leaf manganese appeared normal and exhibited only a small reduction in growth. Leaf tissue levels in excess of 4000 ppm were(More)
Tissue manganese was found to influence the indoleacetic acid (IAA) system of cotton over a wide range of concentrations. The cofactor and inhibitor activities of the IAA-oxidase system were affected as the concentration of manganese in the tissue was varied. Maximum inhibitor activity was found in leaf extracts from the plants grown in 0.5 mg/l manganese(More)
Cotton plants (Gossypium hirsutum. Linn. var. Sankar 4) were grown at normal and toxic levels of substrate manganese, and the altered metabolism of manganese toxic plants was studied. The tissues of plants exposed to toxic levels of manganese had higher activities of peroxidase and polyphenol oxidase, and the activities of catalase, ascorbic acid oxidase,(More)
Respiration of leaf tissue from cotlon plants in the nine leaf stage was found to be severely reduced at temperatures below 15°C. In another study, young cotton plants were exposed to chilling temperature (2.8°C) for 72 hours and the ability of the plant tissues to recover respiration at normal temperatures (15 and 25°C) was examined at periodic intervals.(More)
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