NAC transcription factors are plant-specific and play an important role in responses to biotic and abiotic stresses. Populus euphratica is a salt-tolerant tree species growing in semi-arid saline areas. A stress responsive gene was successfully isolated from this species and named PeNAC1. The isolated cDNA encoded a protein containing a conserved NAC domain that belonged to the ATAF subgroup of the NAC protein family. The protein was localized to the nucleus and its C-terminus had transcriptional activation activity. Northern hybridization showed that its expression was strongly induced by drought and salt stress, but only slightly induced by ABA treatment in P. euphratica. Transgenic Arabidopsis overexpressing PeNAC1 showed enhanced tolerance to salt stress, with lower Na(+)/K(+) ratios in the roots and leaves, and significantly inhibited expression levels of AtHKT1. Our results suggest that PeNAC1 plays a role in the plant response to salt stress by regulating Na(+)/K(+) homeostasis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.gene.2013.03.068 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
VEGFR3 mitigates hypertensive nephropathy by enhancing mitophagy via regulating crotonylation of HSPA1L.
Cell Commun Signal
January 2025
Department of Cardiology, the 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
Oxidative stress-associated proximal tubular cells (PTCs) damage is an important pathogenesis of hypertensive renal injury. We previously reported the protective effect of VEGFR3 in salt-sensitive hypertension. However, the specific mechanism underlying the role of VEGFR3 in kidney during the overactivation of the renin-angiotensin-aldosterone system remains unclear.
View Article and Find Full Text PDFStructural basis for human NKCC1 inhibition by loop diuretic drugs.
EMBO J
January 2025
Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT, 84112-5650, USA.
Na-K-Cl cotransporters functions as an anion importers, regulating trans-epithelial chloride secretion, cell volume, and renal salt reabsorption. Loop diuretics, including furosemide, bumetanide, and torsemide, antagonize both NKCC1 and NKCC2, and are first-line medicines for the treatment of edema and hypertension. NKCC1 activation by the molecular crowding sensing WNK kinases is critical if cells are to combat shrinkage during hypertonic stress; however, how phosphorylation accelerates NKCC1 ion transport remains unclear.
View Article and Find Full Text PDFCurrent insights into molecular mechanisms of environmental stress tolerance in Cyanobacteria.
World J Microbiol Biotechnol
January 2025
Systems Biology for Biofuels Group, International Centre for Genetic Engineering and Biotechnology, ICGEB Campus, Aruna Asaf Ali Marg, New Delhi, 110067, India.
The photoautotrophic nature of cyanobacteria, coupled with their fast growth and relative ease of genetic manipulation, makes these microorganisms very promising factories for the sustainable production of bio-products from atmospheric carbon dioxide. However, both in nature and in cultivation, cyanobacteria go through different abiotic stresses such as high light (HL) stress, heavy metal stress, nutrient limitation, heat stress, salt stress, oxidative stress, and alcohol stress. In recent years, significant improvement has been made in identifying the stress-responsive genes and the linked pathways in cyanobacteria and developing genome editing tools for their manipulation.
View Article and Find Full Text PDFA bHLH transcription factor RrUNE12 regulates salt tolerance and promotes ascorbate synthesis.
Plant Cell Rep
January 2025
Engineering Research Center of National Forestry and Grassland Administration for Rosa Roxburghii, Agricultural College, Guizhou University, Guiyang, 550025, People's Republic of China.
RrUNE12 binds to the RrGGP2 promoter to facilitate biosynthesis of AsA in Rosa roxburghii fruit. Furthermore, RrUNE12 upregulates antioxidant-related genes and maintains ROS homeostasis, thereby improving tolerance to salt stress. L-ascorbic acid (AsA) plays an essential role in stress defense as a major antioxidant in plant cells.
View Article and Find Full Text PDFRegulatory networks of bZIPs in drought, salt and cold stress response and signaling.
Plant Sci
January 2025
State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, PR China. Electronic address:
Abiotic stresses adversely impact plants survival and growth, which in turn affect plants especially crop yields worldwide. To cope with these stresses, plant responses depend on the activation of molecular networks cascades, including stress perception, signal transduction, and the expression of specific stress-related genes. Plant bZIP (basic leucine zipper) transcription factors are important regulators that respond to diverse abiotic stresses.
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!