The term “peroxidase” designs a group of hemoproteins with a wide structural variability.
These enzymes catalyze the redox reaction between hydrogen peroxide and some …

Generation of reactive oxygen species (ROS) constitutes an important first reaction under
many stress conditions in plants. We demonstrate that Nicotiana tabacum L. cv. Bright …

In this work the effect of cadmium, copper, iron and zinc on antioxidant enzymes activity in
Nicotiana tabacum Bright Yellow 2 cells derived from suspension culture was studied. It was …

Ultrasound and microwaves are physical factors and represent a “stress” factor to plant
metabolism. Treating plants using ultrasound and microwaves initiates occurrence of some …

O óxido nítrico (NO) tem se mostrado um sinalizador presente em muitas fases do
desenvolvimento vegetal e elemento essencial nas respostas aos estresses bióticos e …