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Salinity stress is a major concern in regions where irrigation relies on saline water. This study aimed to investigate the relative water content (RWC), electrolytic leakage (EL), total chlorophyll content, free amino acid content, and total soluble sugar content were analyzed in different groundnut species subjected to various salinity treatments. The results showed that salinity stress significantly reduced the RWC in groundnut leaves, with A. duranensis (wild type) exhibiting higher RWC values compared to the Arachis hypogaea species. RNA sequencing was performed to identify differentially expressed genes (DEGs) during salt stress. A total of 9079 DEGs were identified, with 1372 genes upregulated and 2509 genes downregulated. Genes belonging to transcription factor families, such as WRKY, MYB, bHLH, E2F, and Auxin efflux carrier proteins, were induced under salt stress in the tolerant genotype. Conversely, genes encoding NADH dehydrogenase, glutathione S-transferase, protein kinases, UDP-glycosyltransferase, and peroxidase were downregulated. Gene ontology and pathway analyses revealed several enriched categories and metabolic pathways associated with salt stress response, including catalytic activity, response to salt stress, ATP-dependent activity, and oxidative phosphorylation. The findings of this study provide insights into the physiological and molecular responses of groundnut to salinity stress. A. duranensis exhibited better salinity tolerance than Arachis hypogaea, as indicated by higher RWC values, lower electrolytic leakage, and differential gene expression patterns. These results contribute to our understanding of the mechanisms underlying salt stress tolerance in groundnut and may guide future efforts to develop salinity-tolerant groundnut species, ultimately improving crop yield in saline-affected regions.
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http://dx.doi.org/10.1016/j.jbiotec.2024.07.023 | DOI Listing |
Mol Biol Cell
December 2024
Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA.
Autophagy is an essential cellular recycling process that maintains protein and organelle homeostasis. ATG9A vesicle recruitment is a critical early step in autophagy to initiate autophagosome biogenesis. The mechanisms of ATG9A vesicle recruitment are best understood in the context of starvation-induced non-selective autophagy, whereas less is known about the signals driving ATG9A vesicle recruitment to autophagy initiation sites in the absence of nutrient stress.
View Article and Find Full Text PDFAntonie Van Leeuwenhoek
December 2024
All-Russian Collection of Microorganisms (VKM), Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, Pushchino, 142290, Russia.
Four salt-tolerant and aromatics degrading strains used in this study were isolated from polluted technogenic soil on the territory of the Verkhnekamsk potash deposit (Russia). The strains were aerobic, Gram-stain-positive, non-motile, non-endospore-forming irregular rods, exhibiting a marked rod-coccus growth cycle. They contained lysine-based peptidoglycan, teichulosonic acid and poly(glycosyl phosphate) polymers in the cell walls.
View Article and Find Full Text PDFGM Crops Food
December 2025
College of Agronomy, Jilin Agricultural University, Changchun, China.
Maize ( L.) is a major food and feed crop and an important raw material for energy, chemicals, and livestock. The NF-Y family of transcription factors in maize plays a crucial role in the regulation of plant development and response to environmental stress.
View Article and Find Full Text PDFPlant Cell Environ
December 2024
State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding, Hebei, China.
The heterogeneity of soil salinity is a critical attribute of saline agricultural environments, particularly for the physiological adaptability of cotton (Gossypium hirsutum L.) plants. However, the mechanisms by which cotton plants acclimate to heterogenous salinity remain poorly understood.
View Article and Find Full Text PDFJ Toxicol Environ Health A
December 2024
Laboratory of Nanostructured Magnetic Materials, Department of Physics, Federal University of Santa Maria, Santa Maria, Brazil.
Rice is considered to be moderately salt-tolerant during germination, development, and ripening stages, and environmentally sensitive during seedling and reproductive stages, which affects seedling emergence and growth, resulting in significant yield losses. Seed conditioning with chitosan has been employed as a useful tool in high-salinity environments with the aim of increasing crop productivity and quality, as well as promoting more sustainable agricultural practices. Therefore, this study aimed to examine the effect of seed conditioning with chitosan on seed germination and rice seedling growth under salinity stress.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!