ABSTRACT
Prolonged exposure to salinity is responsible for the decline in global crop productivity. The situation is further aggravated due to various anthropogenic activities such as the use of saline water for irrigation, aquaculture, and potassium as fertilizer, which can all lead to salination. Salinity leads to osmotic stress and subsequent disruption of ionic homeostasis and cellular distribution, commonly known as the biphasic response. This biphasic response in plants tends to accumulate high levels of cellular reactive oxygen species (ROS), which are detrimental to plant survival. This review focuses on major ROS signaling identified in crop plants in relation to oxidative and salt stress.
