Exogenous sucrose alleviates salt stress in sunflower (<i>Helianthus annuus</i> L.) and canola (<i>Brassica napus</i> L.) by modulating osmotic adjustment and antioxidant defense system.

ABSTRACT: Salinity, a major ecological problem worldwide, adversely affects plant growth and productivity. Osmoprotectants are a possible strategy for plants to cope with and regulate their response to unfavorable environmental conditions, such as salinity. However, the role of sucrose in this process requires more precise elucidation. This study aims to investigate the ameliorative role of sucrose on growth parameters, proline content, antioxidant enzyme activity, and gene expression in sunflower and canola under salt stress. The treatments included a 3% sucrose concentration and two levels of salinity (75 and 150 mM NaCl). Salinity caused a remarkable reduction in stem-root growth, chlorophyll amounts and catalase (CAT) activity, whereas it unchanged ascorbate peroxidase (APX) activity. Furthermor

SUBMITTER: Sevgi B 

PROVIDER: S-EPMC12006602 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature