white-rot basidiomycetes are one of the most important lignolytic microorganisms. these fungi have been reported to secrete three main classes of lignin degrading enzymes: lignin peroxidases (lips), manganese peroxidases (mnps) and laccases. in this study, for the first time the lignin degrading capability of two plant pathogens i.e. hyphodermella rosae and h. corrugata was evaluated using both...

background: elicitors can trigger defense responses and activate specific genes involved in secondary metabolite biosynthesis. objective: for understanding sa-treatment signaling pathway we determined defense-related compounds and enzymes in s. marianum hairy root cultures. methods: 28 day old hairy roots were treated by salicylic acid (6 mg/50 ml culture) for different times (24, 48, 72, 96 an...

helicobacter pylori infection leads to different clinical and pathological outcomes in humans, including chronic gastritis and gastric neoplasia. it has been demonstrated that oxidative stress associated with inflammation plays an important role in gastric carcinogenesis. to evaluate the oxidative stress in h. pylori infection we studied the gastric juice levels of nitric oxide and the activiti...