Attenuation of Chilling Injury and Improving Antioxidant Capacity of Persimmon Fruit by Arginine Application

Abstract

Persimmon is a climacteric perishable fruit with a short storage life. In recent years, using natural compounds that are safe for human health and environment have obtained more attention in postharvest investigations. The current research was conducted to study efficacy of postharvest L-arginine treatment at 0, 0.3, and 0.6 mM in improving chilling tolerance and maintaining the nutritional quality of persimmon fruit during low-temperature storage. According to the results, the highest weight loss (4.3%), malondialdehyde (MDA (5.8 nmol g−1 FW)), and hydrogen peroxide (H2O2 (22.33 nmol g−1 FW)) was detected in control fruit. Fruit firmness was gradually decreased during storage, but it was slower in L-arginine-treated fruit. The highest tissue firmness (3.8 kg cm−2) was noted in fruit treated with 0.6 mM L-arginine. The chilling was gradually increased during storage. Fruits treated with L-arginine showed a lower chilling injury than the control fruit. Total soluble tannin compound and antioxidant enzymes activities in persimmons declined during cold storage. L-arginine treatment significantly maintained antioxidant enzymes activity, antioxidant capacity, and total soluble tannin compounds, while L-arginine had no significant impact on titratable acidity and total soluble solids. It seems that a reduction in oxidative damage and an increase in quality of persimmon during low-temperature storage manifested several defense mechanisms induced by exogenous application of L-arginine. These findings indicated that the application of L-arginine to maintain the quality and increase postharvest life of persimmon is very useful and can be applied during cold storage.

Urea Cycle of Bacillus thuringiensis Affects Its Survival under UV Stress

“…29 In agriculture, arginine is commonly used to treat fruits to maintain their cold resistance and antioxidant capacity. 30 Arginase is involved in the synthesis of many secondary metabolites, such as ornithine, proline, and polyamines, as well as most of these secondary metabolite pathways also require the participation of RocF. 11 Some studies have shown that these metabolites have a positive effect on the cellular stress resistance in other species.…”

“…Arginine, an amino acid that carries positive charges, is important for maintaining the integrity of the cell wall and plasma membrane . In agriculture, arginine is commonly used to treat fruits to maintain their cold resistance and antioxidant capacity . Arginase is involved in the synthesis of many secondary metabolites, such as ornithine, proline, and polyamines, as well as most of these secondary metabolite pathways also require the participation of RocF .…”

The metabolism of amino acids, AsA and abscisic acid induced by strigolactone participates in chilling tolerance in postharvest zucchini fruit

“…Arginine, a fundamental building block of proteins and a source for generating certain bioactive substances in higher plants, is a pivotal amino acid deeply integrated into various metabolic processes and actively engaged in the stress response mechanisms of these plants ( Nasr et al., 2022 ). As arginine possesses a high carbon-to-nitrogen ratio, it not only supplies plants with essential nitrogen but also sustains cellular functions and boosts tolerance to diverse abiotic stresses.…”

Growth Improvement of Sweet Basil (Ocimum basilicum L.) Irrigated with Saline Water Using Biochar and Spirulina Algae Extract

“…Proline can alleviate the adverse effect of salinity through increasing antioxidant activities, leading to reducing membrane damage, improve ROS detoxification and preserved plasma membrane stability (Abo-Elyousr et al, 2022;Abd El-Wahed et al, 2023). Amino acids, e.g., arginine, have a role in improve plant growth under saline condition through reducing the accumulation of ROS and increasing the antioxidant enzyme activities (Nasr et al, 2022). Moreover, amino acids have a role in micronutrient chelating that facilitate the absorption and transportation of micronutrient inside plants (Marschner,1995).…”