Comparative Analysis of Physiological Parameters, Antioxidant Defense, Ion Regulation, and Gene Expression in Two Distinct Maize Hybrids Under Salt Stress at Seedling Stage

Life, Journal Year: 2025, Volume and Issue: 15(4), P. 591 - 591

Published: April 3, 2025

Salinity significantly impacts maize production globally, requiring a deeper understanding of response mechanisms to salt stress. This study assessed the two Egyptian hybrids, SC-10 and TWC-321, under stress (200 mM NaCl) non-stressed conditions identify traits linked enhanced salinity tolerance. Both hybrids accumulated similar Na+ levels in leaves, but TWC-321 exhibited better ion regulation, with lower concentrations K+ ratio roots. While showed reduction leaf levels, maintained stable highlighting its superior also demonstrated oxidative management, as evidenced by malondialdehyde higher total chlorophyll content, relative water stomatal conductance. Proline accumulation was more pronounced it antioxidant enzyme activities (SOD, CAT, POD) compared SC-10, which SOD POD activities. Gene expression analysis distinct responses between hybrids. Although zmHKT1;5 similarly induced both zmHKT2 (1.96-fold 1.42-fold SC-10) upregulated zmNHX1 (1.92-fold), whereas slightly reduced (0.8-fold). Additionally, achieved greater dry weight than stress, performance resilience. These findings indicate that exclusion sequestration mediate tolerance TWC-321. Correlation identified key indicators tolerance, including increased activity CAT SOD, elevated proline accumulation, content. Consequently, can be attributed effective photosynthetic pigment improved osmotic adjustment, retention, potent defense system. insights are highly valuable for breeding programs focused on developing salt-tolerant

Language: Английский

Study on soil salinity inversion of different crop types based on multi-time series

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Language: Английский

The Role of Salicylic Acid in Salinity Stress Mitigation in Dizygostemon riparius: A Medicinal Species Native to South America

Plants, Journal Year: 2024, Volume and Issue: 13(21), P. 3111 - 3111

Published: Nov. 4, 2024

Salicylic acid (SA) is a bioregulator well-known for mitigating salinity damage in plants. However, no studies have examined the interaction between SA and

Language: Английский