Journal Article

Micronutrient deficiency-induced oxidative stress in plants

Verma, Nikita, Tewari, Rajesh Kumar, Gupta, Roshani

2024

Overview

Micronutrients like iron (Fe), zinc (Zn), copper (Cu), manganese (Mn), boron (B), nickel (Ni), and molybdenum (Mo) perform significant roles in the regulation of plant metabolism, growth, and development. Micronutrients, namely Fe, Zn, Cu, Mn, and Ni, are involved in oxidative stress and antioxidant defense as they are cofactors or activators of various antioxidant enzymes, viz . , superoxide dismutase (Fe, Cu/Zn, Mn, and Ni), catalase (Fe), and ascorbate peroxidase (Fe). An effort has been made to incorporate recent advances along with classical work done on the micronutrient deficiency-induced oxidative stress and associated antioxidant responses of plants. Deficiency of a micronutrient produces ROS in the cellular compartments. Enzymatic and non-enzymatic antioxidant defense systems are often modulated by micronutrient deficiency to regulate redox balance and scavenge deleterious ROS for the safety of cellular constituents. ROS can strike cellular constituents such as lipids, proteins, and nucleic acids and can destruct cellular membranes and proteins. ROS might act as a signaling molecule and activate the antioxidant proteins by interacting with signaling partners such as respiratory burst oxidase homolog (RBOH), G-proteins, Ca 2+ , mitogen activated protein kinases (MAPKs), and various transcription factors (TFs). Opinions on probable ROS signaling under micronutrient deficiency have been described in this review. However, further research is required to decipher micronutrient deficiency-induced ROS generation, perception, and associated downstream signaling events, leading to the development of antioxidant responses in plants.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V
• Subject: antioxidant activity / Antioxidants / Antioxidants - metabolism / ascorbate peroxidase / Ascorbic acid / Biomedical and Life Sciences / Biotechnology / Boron / calcium / Calcium ions / Catalase / Cell Biology / Cell membranes / Copper / G-proteins / iron / Iron constituents / Iron deficiency / Kinases / L-Ascorbate peroxidase / Life Sciences / Lipid peroxidation / Lipids / Manganese / metabolism / Micronutrients / Micronutrients - deficiency / Micronutrients - metabolism / mitogen-activated protein kinase / Molybdenum / Nickel / Nucleic acids / nutrient deficiencies / Nutrient deficiency / Oxidative Stress / Peroxidase / Plant Biochemistry / Plant metabolism / Plant Sciences / Plants - metabolism / Proteins / Reactive Oxygen Species - metabolism / respiratory burst / Respiratory burst oxidase / Review / Signal Transduction / Superoxide dismutase / Transcription factors / Zinc