Unveiling tolerance mechanisms in pepper to combined low-temperature and low-light stress: a physiological and transcriptomic approach.

ABSTRACT:

Background

Pepper (Capsicum annuum L.) is a vegetable crop of significant economic importance, but its yield and quality are severely affected by the combined stress of low temperature and low light (LL), particularly in greenhouse environments. Despite this, the physiological and molecular mechanisms underlying pepper's response to LL stress remain poorly understood. In this study, we conducted physiological and transcriptomic analyses on two pepper genotypes: Y2, a LL-sensitive genotype, and Y425, a LL-tolerant genotype. These genotypes were subjected to LL stress conditions (10 °C/5°C, 100 µmol m⁻²s⁻¹) and control (CK) conditions (28 °C/18°C, 300 µmol m⁻²s⁻¹).

Results

Three days after treatment, the phenotypes of the two pepper genotypes began to show clear distinctions,

SUBMITTER: Zhang J 

PROVIDER: S-EPMC11808994 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature