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Linkage Mapping and Identification of Candidate Genes for Cold Tolerance in Rice (Oryza Sativa L.) at the Bud Bursting Stage.
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State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Rice is highly sensitive to low temperatures, making cold stress a significant factor limiting its growth, especially during the bud bursting stage. To address this, an RIL population derived from a cross between cold-tolerant and cold-sensitive rice varieties was used to identify nine QTLs linked to cold tolerance under temperatures of 4 ℃, 5 °C, and 6 ℃ using a high-density genetic map. One candidate gene, LOC_Os07g44410, was identified through gene function annotation, haplotype analysis, and qRT-PCR, with two main haplotypes (Hap1 and Hap2) showing distinct phenotypic differences.
View Article and Find Full Text PDFThe XCL1-XCR1 axis supports intestinal tissue residency and antitumor immunity.
J Exp Med
March 2025
School of Biological Sciences, University of California, San Diego, La Jolla, CA, USA.
Tissue-resident memory T cells (TRM) provide frontline protection against pathogens and emerging malignancies. Tumor-infiltrating lymphocytes (TIL) with TRM features are associated with improved clinical outcomes. However, the cellular interactions that program TRM differentiation and function are not well understood.
View Article and Find Full Text PDFSelenium ameliorates cognitive impairment through activating BDNF/TrkB pathway.
J Trace Elem Med Biol
January 2025
Department of Epidemiology and Health Statistics, School of Public Health, Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, China. Electronic address:
Background: Alzheimer's disease (AD) is a neurodegenerative disorder that primarily affects older adults. Selenium, an essential micronutrient for humans, plays a crucial role in the body's normal physiological and metabolic processes. A long-term deficiency in selenium intake can lead to various diseases and even contribute to the ageing process.
View Article and Find Full Text PDFMelatonin inhibits ferroptosis through the ATF3/GPX4 signaling pathway to relieve myocardial ischemia-reperfusion injury in rats.
In Vitro Cell Dev Biol Anim
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Department of Critical Care Medicine, The Qujing NO.1 People's Hospital, Qujing, 655000, Yunnan, China.
Melatonin (MEL), functioning as a circulating hormone, is important for the regulation of ferroptosis in different health scenarios and acts as a crucial antioxidant in cardiovascular diseases. However, its specific function in ferroptosis related to myocardial ischemia-reperfusion injury (MIRI) remains to be fully elucidated. In our research, we utilized a rat model of MIRI induced by coronary artery ligation, along with a cell model subjected to hypoxia/reoxygenation (H/R).
View Article and Find Full Text PDFScreening of high glucose tolerant Escherichia coli for L-valine fermentation by autonomous evolutionary mutation.
Appl Microbiol Biotechnol
January 2025
College of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, 224051, PR China.
L-valine holds wide-ranging applications in medicine, food, feed, and various industrial sectors. Escherichia coli, a pivotal strain in industrial L-valine production, features a concise fermentation period and a well-defined genetic background. This study focuses on mismatch repair genes (mutH, mutL, mutS, and recG) and genes associated with mutagenesis (dinB, rpoS, rpoD, and recA), employing a high-glucose adaptive culture in conjunction with metabolic modifications to systematically screen for superior phenotypes.
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