BACKGROUND Hepatitis is a viral infection of hepatitis B virus (HBV). Limitations of drug used in the management of it opens the interest related to alternative medicine. The given study deals with the antiviral activity of Dianthus superbusn L. (DSL) against HBV in vitro & in vivo. MATERIAL AND METHODS In vitro study liver cell line HepG2.2.15 was used by transinfected it with HBV. Cytotoxic...

The phytohormone ethylene is essential for senescence in many fruits and flowers. In the biosynthesis of ethylene in plants, the conversion of S-adenosyl methionine (SAM) to 1-aminocyclopropane1-carboxylic acid (ACC) and the conversion of ACC to ethylene are catalyzed by ACC synthase (ACS) and ACC oxidase (ACO), respectively (Adams and Yang, 1979). Using a cDNA clone representing carnation ACO ...

Ethylene is a plant hormone with endogenous production associated with the process of senescence for a number of cut flowers. Different stressogenic factors, including signals such as pollination, exogenous ethylene and auxins have been found to be associated with the increase in ethylene emission and a specific tissue response has been documented. The present study was undertaken with the aim ...

It has been generally thought that in ethylene-sensitive plants such as carnations, senescence proceeds irreversibly once the tissues have entered the climacteric phase. While pre-climacteric petal tissues have a lower sensitivity to ethylene, these tissues are converted to the climacteric phase at a critical point during flower development. In this study, it is demonstrated that the senescence...

Carnation vein mottle virus (CarVMV) was isolated from glasshouse-grown Dianthus caryophyllus L. originating from Split. The same virus was obtained also from D. caryophyl­ lus, D. carthusianorum L. and D. barbatus L. which were grown in the open in Zagreb and the surroundings. The virus was identified on the basis of host plants, non-persi­ stent mode of transmission by M yzus persicae Sulz. a...

Quantitative histochemical methods were used to measure glyceraldehyde-3-phosphate dehydrogenase-NADP activity in developing and mature leaves of Dianthus chinensis L. The activity values were compared on the basis of illumination of developing leaves, the maturity of stomata, and the activity of enzymes concerned with carbohydrate oxidation. Activity on a kilogram dry weight per hour basis inc...

The addition of potassium bicarbonate to the electrode cuvette immediately stimulated the rate of dark O(2) uptake of photomixotrophic and heterotrophic carnation (Dianthus caryophyllus L.) callus, of Elodea canadensis (Michx) leaves, and of other plant tissues. This phenomenon occurred at pH values lower than 7.2 to 7.8, and the stimulation depended on the concentration of gaseous CO(2) in the...