Activity of Peroxidases and Phenylalanine Ammonia-lyase in Lupine and Soybean

Activation of phenylpropanoid pathway in legume plants exposed to heavy metals. Part I. Effects of cadmium and lead on phenylalanine ammonia-lyase gene expression, enzyme activity and lignin content.

Species-specific changes in expression of phenylalanine ammonia-lyase (PAL) and lignin content were detected in roots of soybean (Glycine max L.) and lupine (Lupinus luteus L.) seedlings treated with different concentrations of cadmium (Cd(2+), 0-25 mg/l) or lead (Pb(2+), 0-350 mg/l). The stimulatory effect of both metals was observed in mRNA coding for PAL in soybean. In the case of lupine, ch...

Effects of salinity on antioxidant system in ten grape genotypes. Nayer Mohammadkhani1 and Nasser Abbaspour2*

Salinity is an important environmental factor that limits plant growth and production. Grape is classified as salt sensitive plants. The object of this study was to evaluate effects of salinity on membrane lipid peroxidation, antioxidant components, and antioxidative enzymes activity in ten grape genotypes native to the regions around Urmia Salt Lake.Malondialdehyde content and protective enzym...

Potassium influenced phenylalanine ammonia-lyase, peroxidases and polyphenol oxidases in Fusarium graminearum infected maize (Zea mays L.)

Phenylalanine ammonia-lyase activity in soybean hypocotyls and leaves following infection with Phytophthora megasperma f.sp. glycinea

Phenylalanine ammonia-lyase activity increased rapidly beginning 2 h after inoculation with Phytophthora megasperma (Drechs.) f.sp. glycinea (Hildeb.) Kuan & Erwin race 1 in unwounded hypocotyls of soybean cv. Harosoy 63 (resistant) but did not change significantly in cv. Harosoy (susceptible). Small increases in phenylalanine ammonia-lyase activity also were caused by wounding. Activity increa...

Effect of different salinity levels on physiological characteristics, phenylalanine ammonia lyase activity and some flavonoid compounds in hydroponic cultivation of saffron (Crocus sativus L.)

The use of salt tolerant plants in arid and semi-arid regions of the world, including Iran, is one of the ways to achieve high yields. The aim of this study was to investigate the effect of different salinity treatments in hydroponic culture on physiological characteristics, phenylalanine-ammonialyase (PAL) activity and also the small amount of flavonoid compounds kaepmferol and quercetin in fi...