salicylic acid (sa) and methyl jasmonate (meja) as phytohormone regulate synthesis of secondary metabolites in a wide range of plant species by accumulation of phenylalanine ammonia lyase enzyme (pal) and accelerate the production of oxygen free radicals, protein kinase, proline and nitrite oxide content. to study the effect of these compounds on synthesis of secondary metabolites, in two separ...

Further studies with inhibitors of protein synthesis are presented to support the conclusion, drawn from work with chloramphenicol, that protein synthesis is a critical limiting factor in auxin-induced cell expansion. The indoleacetic acid-induced elongation of oat coleoptile sections was strongly inhibited by dl-p-fluorophenylalanine, and the inhibition is antagonized by phenylalanine. Puromyc...

Two field experiments were carried out during the winter seasons of 2000/2001 and 2001/2002 at the Agricultural Experimental Station (at Abeis) Alexandria University, to investigate the response of globe artichoke plants cv. French, to the inoculation with Halex2 and Microbein biofertilizers under varying N levels (0, 45, 90 and 135 kg N fed -1 ). The results indicated that increasing N applied...

Plant secondary metabolites are highly evolved compounds performing different functions, and have been widely exploited from food to medicine. A constant supply of phenols, a class of secondary metabolites, provides preventive and defensive mechanisms to reduce the risk of chronic diseases in human beings; among them monoand di-caffeoylquinic acids (monoCQAs, diCQAs) have attracted a growing ac...

The present investigation assessed the effects of a metalloid (arsenic) and two heavy metals (cadmium and mercury), on the growth and metal accumulation in two medicinal plant species, artichoke (Cynara scolymus L.) and Savory (Satureja hortensis L.). The experiment was conducted hydroponically in spiked solution with different concentrations of arsenic (0, 20, 100, and 500 µM), cadmium (0, 10,...

Artichoke (Cynara scolymus L.), a medicinal plant with high economic value, contains levels of phenolic compounds; especially cynarine, which plays an important role in preventing cancer, cardiovascular disease, osteoporosis, diabetes and neurodegeneration, etc. Currently, micropropagation has achieved some success; however, the rooting efficiency plantlet quality are still limited. In this stu...

to study the effect of three soil fertilizing systems (chemical, organic, and integrated) on forage yield and quality of globe artichoke (cynara scolymus) an experiment was conducted using a randomized complete block design (rcbd) of four replications at the research farm of college of agriculture, university of tehran, karaj, iran in 2006. the treatments included 5 levels of chemical fertilize...