Активные формы кислорода и антиоксидантная система растений

Abstract

Under the influence of adverse conditions reactive oxygen species (ROS) are formed, which lead to oxidative stress. Increasing the ROS content in plants can pose a threat to the cells, causing lipid peroxidation, oxidative damage to proteins, nucleic acids, as well as inhibition of enzymes, activation of the pathway of programmed cell death, and ultimately leading to cell death. Plants have a well developed defense system to counteract active forms of oxygen (ROS), including both limiting the formation of ROS and neutralizing them. Under normal conditions, the formation and degradation of the ROS are in equilibrium. At the same time, under stress, the antioxidant system can not cope with its task.