Physiological and Molecular Mechanism Involved in Cold Stress Tolerance in Plants

Abstract

Previous studies have reported that low temperature (LT) constrains plant growth and restricts productivity in temperate regions. However, the underlying mechanisms are complex and not well understood. Over the past ten years, research on the process of adaptation and tolerance of plants during cold stress has been carried out. In molecular terms, researchers prioritize research into the field of the ICE-CBF-COR signaling pathway which is believed to be the important key to the cold acclimation process. Inducer of CBF Expression (ICE) is a pioneer of cold acclimation and plays a central role in C-repeat binding (CBF) cold induction. CBFs activate the expression of COR genes via binding to cis-elements in the promoter of COR genes. An ICE-CBF-COR signaling pathway activates the appropriate expression of downstream genes, which encodes osmoregulation substances. In this review, we summarize the recent progress of cold stress tolerance in plants from molecular and physiological perspectives and other factors, such as hormones, light, and circadian clock. Understanding the process of cold stress tolerance and the genes involved in the signaling network for cold stress is essential for improving plants, especially crops.

Transcriptomic Profiling of Young Cotyledons Response to Chilling Stress in Two Contrasting Cotton (Gossypium hirsutum L.) Genotypes at the Seedling Stage

“…Phytohormones mainly include IAA, GA, CK, ABA, ET, BR, SA, JA, and strigolactone, which are small endogenous signaling molecules. Among them, BR, ABA, IAA, ET, GA, and JA have been reported to respond to cold stress and regulate cold resistance [59][60][61]. Previous studies have demonstrated that JA positively regulated plant cold tolerance [62].…”

Genome-Wide Identification and Analysis of Class III Peroxidases in Betula pendula

“…The results show that the 90 BpPODs were distributed among 14 chromosomes, as shown in Figure 4, the physical locations of these BpPODs on chromosomes were scattered and uneven. Chromosome 1 and 8 contains the most BpPODs (14), followed by chromosome 13 (10). Eight BpPODs were simultaneously distributed on chromosomes 5 and 7, whereas chromosomes 14 had only one and chromosomes 11 does not include the POD gene.…”

Transcriptomic profiling of germinating seeds under cold stress and characterization of the cold-tolerant gene LTG5 in rice

“…The membrane and temperature sensor (COLD1/RGA1) receives the cold signal, leading to an in ux of Ca 2+ , ROS production, abscisic acid accumulation, and mitogen-activated protein kinase (MAPK) cascade (OsMKK6-OsMPK3) reactions [21,30,31]. ICE-CBF-COR is one of the most widely reported pathways [32]. CBF orthologs have been isolated in rice [21].…”