Glucosinolates Mediated Regulation of Enzymatic Activity in Response to Oxidative Stress in Brassica spp

Abstract

Brassica crops are vital as they supply essential minerals, antioxidants, and bioactive substances like anthocyanins, glucosinolates, and carotenoids. However, biotic and abiotic elements that cause oxidative stress through heavy metals and other eco-toxicants pose a risk to Brassica plants. Increased generation of Reactive Oxygen Species (ROS) causes oxidative stress, which damages biomolecules and interferes with plant growth, productivity, and cellular equilibrium. Plants producing Brassica need an intricate enzyme defence mechanism to fend off oxidative stress. All the enzymes that have been addressed are found in mitochondria, peroxisomes, chloroplasts, and other cell components. They are in charge of removing ROS and preserving the cell's redox balance. Additionally, Brassica plants use secondary metabolites called Glucosinolates (GLs), which have the capacity to regulate enzymatic activity and act as antioxidants. By breaking down compounds like sulforaphane, GLs boost antioxidant enzymes and provide protection against oxidative stress. To develop methods for improving agricultural crop stress tolerance and productivity in Brassica, it is necessary to comprehend the dynamic interaction between GL metabolism and enzymatic antioxidant systems. This highlights the possibility of maximizing antioxidant defences and raising the nutritional and commercial value of Brassica across the globe by utilizing genetic diversity and environmental interactions.

Keywords: Brassica; ROS; antioxidants; glucosinolates; oxidative stress.

Figure 1

Enzymatic defence mechanisms to prevent oxidative stress in plants.

Figure 2

Types of glucosinolates found in Brassicaceae.

Figure 3

Glucosinolates activation and effect on Brassica.

Figure 4

Glucosinolate chain elongation.

Figure 5

Biosynthesis of core glucosinolates.

Figure 6

Glucosinolates and regulation of enzymatic activity.