Compared analysis of physiology and transcriptomics reveals superior cold tolerance in CV-1 compared to K326.

ABSTRACT:

Introduction

Low-temperature stress can cause damage to the growth and development of tobacco plants and the yield and quality of tobacco leaves.

Methods

To elucidate the physiological and molecular mechanisms underlying the differing responses of different tobacco varieties to low-temperature stress at 6 °C, transcriptomics analysis was employed to investigate the differences in physiological and gene regulatory networks between K326 and CV-1.

Results

Morphological analysis revealed that CV-1 recovered more quickly to its pre-cold stress state than K326 during the later stages of low-temperature stress, demonstrating stronger cold tolerance. Physiological and biochemical analyses showed that compared to K326, CV-1 exhibited stronger antioxidant enzyme activities (sup

SUBMITTER: Yang Q 

PROVIDER: S-EPMC12690299 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature