Antioxidant Defense and Transcriptional Reprogramming Account for the Differential Cold Tolerance of Two Japonica Rice Cultivars During Germination Under Low-Temperature Stress.

ABSTRACT:

Background

Low-temperature stress represents a significant constraint on rice production, especially during the germination stage. Consequently, comprehending the mechanisms underlying cold tolerance is of utmost importance for the breeding of resilient rice varieties. This research systematically examined the phenotypic and physiological responses of a cold-tolerant cultivar (JND815) and a cold-sensitive cultivar (Jiyu Japonica) to low-temperature stress (15 °C) during the germination process.

Methods

Following a 17-day incubation period, physiological analyses were conducted. Transcriptomic analysis was performed to identify differentially expressed genes (DEGs), which were further subjected to KEGG enrichment analysis and Gene Ontology (GO) annotation. Additionally, the e

SUBMITTER: Gao Z 

PROVIDER: S-EPMC12841373 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature