Cold stress poses a serious threat to the survival and bloom of . The enhancement of the cold tolerance of is the central concern of our research. The WRKY transcription factor (TF) family was paid great attention to in the field of abiotic stress. The gene was obtained from . The predicted protein contained two typical WRKY domains and two C2H2 zinc-finger motifs. Under cold stress, in leaves was more greatly induced than that in stems and roots. The overexpression (OE) in increased cold tolerance compared with wild-type (WT). Under cold stress, the OE lines possessed showed greater recovery after cold-treatment restoration ratios, proline content, soluble sugar content, and activities of antioxidant enzymes than WT; the relative electrolyte conductivity (EL), the accumulation of malondialdehyde (MDA), hydrogen peroxide (HO), and superoxide anion (O ) are lower in OE lines than that in WT. In addition, a series of cold-response genes of OE lines were compared with WT. The results revealed that worked as a positive regulator by up-regulating transcription levels of cold-responsive genes. The genes above can contribute to the elevation of antioxidant activities, maintain the membrane stability, and raise osmotic regulation ability, leading to the enhancement of the survival capacity under cold stress. According to this work, could serve as an essential gene to confer enhanced cold tolerance in plants.
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http://dx.doi.org/10.3389/fpls.2019.01746 | DOI Listing |
Front Plant Sci
December 2024
Council for Agricultural Research and Economics (CREA), Research Centre for Animal Production and Aquaculture, Lodi, Italy.
The changing climate could expand northwards in Europe the autumn sowing of cool-season grain legumes to take advantage of milder winters and to escape the increasing risk of terminal drought. Greater frost tolerance is a key breeding target because sudden frosts following mild-temperature periods may produce high winter mortality of insufficiently acclimated plants. The increasing year-to-year climate variation hinders the field-based selection for frost tolerance.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Key Laboratory of Tea Science of Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha 410128, China. Electronic address:
While flavonoid accumulation, light radiation, and cold stress are intrinsically connected in tea plants, yet the underlying mechanisms remain elusive. The circadian protein CCA1 and CCA1-like MYB transcription factors (TFs) play important roles in coordinating light and temperature signals in plant-environment interactions, their homologs in tea plants have not been addressed. Here we analyzed CsCCA1-like MYB family in tea genome and found one member, a circadian gene CsMYB128 responding to cold stress.
View Article and Find Full Text PDFPlant Sci
January 2025
College of Life Science, Shihezi University, Shihezi 832000, PR China. Electronic address:
Photosynthesis is essential for the accumulation of organic compounds in plant leaves. Study of photosynthesis in the leaves of Broussonetia papyrifera is crucial for enhancing its biomass production, growth, and development. Here, we cloned the SikPsaF gene associated with photosynthesis from Saussurea involucrata and constructed a vector that was introduced into B.
View Article and Find Full Text PDFBMC Plant Biol
January 2025
Maize and Millet Research Institute, Yousafwala, Sahiwal, Pakistan.
Heat stress poses a significant challenge for maize production, especially during the spring when high temperatures disrupt cellular processes, impeding plant growth and development. The B-cell lymphoma-2 (Bcl-2) associated athanogene (BAG) gene family is known to be relatively conserved across various species. It plays a crucial role as molecular chaperone cofactors that are responsible for programmed cell death and tumorigenesis.
View Article and Find Full Text PDFPlant Physiol Biochem
December 2024
Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.
Cold stress is one of the most serious abiotic stresses that affects the growth and yield in rice. However, the molecular mechanism by which abscisic acid (ABA) regulates plant cold stress tolerance is not yet clear. In this study, we identified a member of the OsNCED (9-cis-epoxycarotenoid dioxygenase) gene family, OsNCED5, which confers cold stress tolerance in rice.
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