Integrative Profiling of Phytohormones, Metabolomics, and Transcriptomics Reveals Key Regulators of Cold Tolerance in Cucumber Leaves.

ABSTRACT: A low-temperature condition in a root zone is a major abiotic stress that threatens cucumber (Cucumis sativus L.) growth and development, yet the molecular mechanism by which the leaf reacts to root zone chilling stress remains largely unknown. In this study, we applied three temperature treatments, including room temperature (20°C-22°C), suboptimal temperature (13°C-15°C), and low temperature (8°C-10°C), to investigate how root zone chilling affects hormone dynamics, metabolomics, and transcriptomics in the leaves of the cucumber variety "Jinyou 35", the main cultivar in northwest and southwest China. Through integrative physiological and biochemical analysis, auxin emerges as the most significant accumulated hormone, accounting for 88% in room temperature-treated leaves (RL), 99%

SUBMITTER: Sun S 

PROVIDER: S-EPMC11873373 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature