Journal Article

Combined application of zinc and iron-lysine and its effects on morpho-physiological traits, antioxidant capacity and chromium uptake in rapeseed (Brassica napus L.)

Rizwan, Muhammad, Abualreesh, Muyassar H., Malik, Afifa, Ali, Shafaqat, Saleem, Muhammad Hamzah, Alatawi, Aishah, Wang, Xiukang, Zaheer, Ihsan Elahi, Yousaf, Hafiza Sana, Abbas, Zohaib

2022

Overview

Environmental contamination of chromium (Cr) has gained substantial consideration worldwide because of its high levels in the water and soil. A pot experiment using oil seed crop (rapeseed ( Brassica napus L.)) grown under different levels of tannery wastewater (0, 33, 66 and 100%) in the soil using the foliar application of zinc (Zn) and iron (Fe)–lysine (lys) has been conducted. Results revealed that a considerable decline in the plant growth and biomass elevates with the addition of concentrations of tannery wastewater. Maximum decline in plant height, number of leaves, root length, fresh and dry biomass of root and leaves were recorded at the maximum level of tannery wastewater application (100%) compared to the plants grown without the addition of tannery wastewater (0%) in the soil. Similarly, contents of carotenoid and chlorophyll, gas exchange parameters and activities of various antioxidants (superoxidase dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX)) were also reduced significantly ( P < 0.05) with the increasing concentration of tannery wastewater (33, 66 and 100%) in the soil. In addition, a combined application of Zn and Fe-lys reduced the accumulation and uptake of toxic Cr, while boosting the uptake of essential micronutrients such as Zn and Fe in different tissues of the plants. Results concluded that exogenous application of micronutrients chelated with amino acid successfully mitigate Cr stress in B . napus . Under field conditions, supplementation with these micronutrient-chelated amino acids may be an effective method for alleviating metal stress in other essential seed crops.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Amino acids / Antioxidants / Antioxidants - pharmacology / Ascorbic acid / Biology and Life Sciences / Biomass / Bioremediation / Brassica / Brassica napus / Brassica napus - drug effects / Brassica napus - genetics / Brassica napus - growth & development / Brassica napus - metabolism / Catalase / Chlorophyll / Chromium / Chromium - metabolism / Contamination / Crops / Engineering / Environmental aspects / Environmental science / Foliar applications / Gas exchange / Health aspects / Iron / Iron - pharmacology / Irrigation / L-Ascorbate peroxidase / Leaves / Lysine / Lysine - chemistry / Metabolism / Methods / Micronutrients / Oxidative Stress / Peroxidase / Photosynthesis / Physical Sciences / Physiological aspects / Physiological effects / Physiology / Plant growth / Plant Leaves - drug effects / Plant Leaves - genetics / Plant Leaves - growth & development / Plant Leaves - metabolism / Plant tissues / Rape (Plant) / Rape plants / Rapeseed / Reactive Oxygen Species - metabolism / Seed crops / Soil contamination / Soil pollution / Soil water / Soils / Supplements / Textile industry wastewaters / Wastewater / Zinc / Zinc - pharmacology / Zinc in the body