in order to investigate the presence of carnation etched ring virus (cerv), samples of carnation (dianthus caryophyllus), sweet william (dianthus barbatus) and weed plants showing symptoms from greenhouses of khorasan razavi and northern khorasan provinces were collected in autumn 2009. polyclonal antiserum was used in order to detection of cerv by double- antibody sandwich-enzyme linked immuno...

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 ...

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...