Abstract
The paper considers theoretical data on the mechanisms of the formation of reactive oxygen species (ROS) and the transduction of stress signals in plant cells. The negative effects of ROS with excessive generation are described. A method of protoplast isolation and a fluorescent microscopy were selected for the experiments. Also, in this work, a comparative analysis of the production of ROS during hypoxia and reaeration for agricultural plants that are differently resistant to the described stress is carried out. Based on the results of the experimental part of the work, conclusions were drawn and the practical application of this study was described.
Highlights
It is known that in natural conditions, living things are subject to the negative impacts of various environmental factors
Higher plants growing in aquatic, semi-aquatic ecosystems and in arid areas suffer from low soil oxygen conditions [1]
The results obtained clearly demonstrated the rapid accumulation of H2O2, its concentration reached a maximum after 30 minutes of exposure of protoplasts of both plant species under hypoxic conditions (Fig. 1)
Summary
It is known that in natural conditions, living things are subject to the negative impacts of various environmental factors. Higher plants growing in aquatic, semi-aquatic ecosystems and in arid areas suffer from low soil oxygen conditions [1]. Long-term evolution ensured the development of physiological, morphological and metabolic adaptations of plant tissues to hypoxic (anoxic) conditions. The most important of them are considered the rapid growth of shoots, the accelerated formation of adventitious roots and aerenchyma [2]. These adaptations stimulate the transport of oxygen to the flooded root. Despite a good understanding of the molecular basis of plant adaptation to oxidative stress, the hypoxic (anoxic) signal transduction mechanism in plant cells is not fully understood
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