The wheat (Triticum aestivum L.) CBF gene family is assumed to play important roles in development of low-temperature and freezing tolerance through activation of the downstream Cor/Lea genes. However, no direct evidence shows association of the wheat CBF genes with stress tolerance or any interaction between wheat CBF transcription factors and Cor/Lea gene activation. Here, we introduced Wcbf2, one of the wheat CBF genes, into the tobacco (Nicotiana tabacum L.) genome. Expression of Wcbf2 significantly increased the level of freezing tolerance in the transgenic tobacco plants without phenotypic retardation, and altered the expression patterns of tobacco genes, including cold-responsive genes. A transgenic tobacco plant expressing Wcbf2 was crossed to other transgenic plants expressing a GUS reporter gene under control of the wheat Cor/Lea gene promoter. Analysis of the F(1) plants showed that the WCBF2 protein positively regulated at least the expression of Wdhn13 and Wrab17. These results strongly indicate that WCBF2 functions as a transcription factor in the development of freezing tolerance in common wheat.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.plaphy.2007.10.019 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sub-zero soil CO respiration in biostimulated hydrocarbon-contaminated cold-climate soil can be linked to the soil-freezing characteristic curve.
Environ Sci Pollut Res Int
January 2025
Department of Civil, Geological, and Environmental Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Engineering Building, Saskatoon, SK, S7N 5A9, Canada.
Extending unfrozen water availability is critical for stress-tolerant bioremediation of contaminated soils in cold climates. This study employs the soil-freezing characteristic curves (SFCCs) of biostimulated, hydrocarbon-contaminated cold-climate soils to efficiently address the coupled effects of unfrozen water retention and freezing soil temperature on sub-zero soil respiration activity. Freezing-induced soil respiration experiments were conducted under the site-relevant freezing regime, programmed from 4 to - 10 °C at a seasonal soil-freezing rate of - 1 °C/day.
View Article and Find Full Text PDFCsCIPK20 Improves Tea Plant Cold Tolerance by Modulating Ascorbic Acid Synthesis Through Attenuation of CsCSN5-CsVTC1 Interaction.
Plant Cell Environ
December 2024
Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China.
Low temperature is a limiting environmental factor for tea plant growth and development. CBL-interacting protein kinases (CIPKs) are important components of the calcium pathway and involved in plant development and stress responses. Herein, we report the function and regulatory mechanisms of a low-temperature-inducible gene, CsCIPK20, in tea plants.
View Article and Find Full Text PDFSurvival of and in Experimentally Infected Wild Boar Muscle Tissue under Freezing and Environmental Conditions.
Iran J Parasitol
January 2024
Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Sciences, University of Buenos Aires, Buenos Aires, Argentina.
Background: The aim of this study was to investigate the survival of and in decaying wild boar tissue and assess their freezing tolerance in experimentally infected animals.
Methods: The present study was conducted in Buenos Aires City, Argentina during the 2018-2019 period. Two wild boars were used, one infected with 20,000 muscle larvae (ML) of and the other with .
AmChi7, an AmWRKY59 - Activated chitinase, was involved in the adaption to winter climate in Ammopiptanthusmongolicus.
Plant Physiol Biochem
December 2024
Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China. Electronic address:
Chitinases are enzymes that hydrolyze β-1,4-glycosidic bonds in chitin. Previous studies have shown that several chitinases accumulated significantly in A. mongolicus, suggesting that chitinases might participate in the adaptation to winter climate in Ammopiptanthus mongolicus.
View Article and Find Full Text PDFLonicera caerulea genome reveals molecular mechanisms of freezing tolerance and anthocyanin biosynthesis.
J Adv Res
December 2024
Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin 150040, China; College of Life Science, Northeast Forestry University, Harbin 150040, China. Electronic address:
Introduction: Lonicera caerulea L. (blue honeysuckle) is a noteworthy fleshy-fruited tree and a prominent medicinal plant, which possesses notable characteristics such as exceptional resilience to winter conditions and early maturation, and the richest source of functional anthocyanins, particularly cyanidin-3-glucoside. The molecular mechanisms responsible for its freezing tolerance and anthocyanin biosynthesis remain largely unknown.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!