The hexaploid wheat (Triticum aestivum) adult plant resistance gene, Lr34/Yr18/Sr57/Pm38/Ltn1, provides broad-spectrum resistance to wheat leaf rust (Lr34), stripe rust (Yr18), stem rust (Sr57) and powdery mildew (Pm38) pathogens, and has remained effective in wheat crops for many decades. The partial resistance provided by this gene is only apparent in adult plants and not effective in field-g...

In order to determine the genotypical differences and basic selection parameters for salt tolerance 36 melon genotypes were grown in hydroponics culture. When seedlings reached to 4-5 leaf stages 150 mM NaCl was applied to them. 14 days after salt application, young plants were harvested from control and salt treated groups. The fresh weight of green parts of young plants and the amount of some...

introduction soil salinity is one of the major agricultural problems and it is limiting crop productivity in many parts of the cultivated areas all over the world. saline soils are differentiated by the presence of great ratios of na/ca, na/k, ca2+, mg2+, and cl/no3 (gratan & catherine, 1993) and high levels of neutral salts in the surface layers, which are resulting from the capillary action (...

Insulin resistance has been extensively investigated during the past decade because of its proposed role in initiating a cluster of cardiovascular risk factors including hypertension. Insulin resistance is an inherited genetic trait that precedes hypertension in Dahl salt-sensitive (S) rats, and is not present in Dahl salt-resistant (R) rats. Owing to the co-existence of insulin resistance and ...

Plants are exposed to antibiotics produced by soil microorganisms, but little is known about their responses at the transcriptional level. Likewise, few endogenous mechanisms of antibiotic resistance have been reported. The Arabidopsis thaliana ATP Binding Cassette (ABC) transporter AtWBC19 (ABCG19) is known to confer kanamycin resistance, but the exact mechanism of resistance is not well under...

This work compares the presowing treatment of winter wheat seeds with a low-temperature plasma, constant high-voltage electric field, plant protection disinfectant, and cold hardening on resistance seedlings to freezing their morphophysiological characteristics at initial stage germination. Various combinations were considered, including effect disinfectant jointly plasma treatment. The greates...

Melatonin is important in the protection of plants suffering various forms of abiotic stress. The molecular mechanisms underlying the melatonin-mediated protection of their photosynthetic machinery are not completely resolved. This study investigates the effects of exogenous melatonin applications on salt-induced damage to the light reaction components of the photosynthetic machinery of tomato ...

to determine the specificity and host range of wilsonomyces carpophilus isolates, some stone fruit seedlings (prunus armeniaca, prunus dulcis, prunus reuteri, p. vulgaris, p. domestica, p. persica, p. avium and p. cerasus), pome fruits (malus communis, pyrus communis, crataegus azarollus and crataegus monogyna) as well as ornamental plants (rosa persica, rosa sp. and r. damascena) were selected...