Work

Investigating the effect of chitosan on the expression of P5CS, PIP, and PAL genes in rapeseed (Brassica napus L.) under salt stress

Year: 2025

Type: article

Abstract: Chitosan, a non-toxic and biodegradable compound, enhances plant growth and secondary metabolite production, presenting innovative approaches to mitigating plant stress. Salinity, a common abiotic stress, significantly impairs plant growth and development. This study investigates the effects of chitosan on the physiological, biochemical, and gene expression responses of salt-stressed Brassica napus L. exposed to NaCl concentrations of 0, 50, 100, and 150 mM. Chitosan was applied as a foliar spray at concentrations of 0, 5 and 10 mg/L. The research focuses on gene expression changes in P5CS, PIP, and PAL genes in the roots and shoots of Brassica napus, revealing notable alterations, particularly in PIP expression under saline conditions. The study also observed enhanced PAL enzyme activity, increased chlorophyll and proline levels, and changes in iron, potassium, and nitrogen content. These findings demonstrate chitosan's potential to improve plant resilience to salt stress. By modulating gene expression and enhancing physiological responses, chitosan presents a promising solution for enhancing plant tolerance to salinity, with valuable implications for agricultural practices.

Source: BMC Plant Biology

DOI: 10.1186/s12870-025-06187-5

Authors: Sarvenaz Bigham Soostani, Monireh Ranjbar, Amir Memarian, Mehrnoosh Mohammadi, Zahra Yaghini

Institutions: University of Hormozgan, Islamic Azad University, Isfahan, Islamic Azad University of Falavarjan, University of Isfahan

Language: English

Topic: Plant Stress Responses and Tolerance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,090