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Laboratory evolution in enables rapid catabolism of a model lignin-derived aromatic dimer.
Appl Environ Microbiol
January 2025
Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.
Lignin contains a variety of interunit linkages, leading to a range of potential decomposition products that can be used as carbon and energy sources by microbes. β-O-4 linkages are the most common in native lignin, and associated catabolic pathways have been well characterized. However, the fate of the mono-aromatic intermediates that result from β-O-4 dimer cleavage has not been fully elucidated.
View Article and Find Full Text PDFAssociation between genetic variation rs57095329 of microRNA-146a and development of cognitive impairment after anesthesia: a case-control study in a Chinese Han population.
Toxicol Res (Camb)
February 2025
Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijn 2 Road, Shanghai 200025, China.
The latest studies have demonstrated that aberrant expression of microRNA-146a is related to cognitive decline. The rs57095329 polymorphism occurring in the miR-146a promoter modulates its expression and causes downstream pathogenicity. A case-control study in a Chinese Han population was established to investigate the genetic association between the miR-146a rs57095329 polymorphism and postoperative cognitive dysfunction (POCD).
View Article and Find Full Text PDFYgiV promoter mutations cause resistance to cystobactamids and reduced virulence factor expression in Escherichia coli.
NPJ Antimicrob Resist
November 2024
Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Saarland University Department of Pharmacy, Campus Building E8.1, 66123, Saarbrücken, Germany.
Antimicrobial resistance is one of the major health threats of the modern world. Thus, new structural classes of antimicrobial compounds are needed in order to overcome existing resistance. Cystobactamids represent one such new compound class that inhibit the well-established target bacterial type II topoisomerases while exhibiting superior antibacterial and resistance-breaking properties.
View Article and Find Full Text PDFDifferential expression of CCD4(4B) drives natural variation in fruit carotenoid content in strawberry (Fragaria spp.).
Plant Biotechnol J
January 2025
Department of Plant Breeding and Biotechnology, Centro IFAPA de Málaga, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Málaga, Spain.
Carotenoids are a diverse group of pigments imparting red, orange, and yellow hues to many horticultural plants, also enhancing their nutritional properties and health benefits. In strawberry, the genetic and molecular mechanisms regulating the natural variation of fruit carotenoid composition remain largely unexplored. In this study, we use a population segregating in yellow/white flesh to detect a major quantitative trait locus (QTL), qYellow Flesh-4B, located on chromosome 4B and accounting for 82% of total phenotypic variation.
View Article and Find Full Text PDFCTB6 Confers Cold Tolerance at the Booting Stage by Maintaining Tapetum Development in Rice.
Adv Sci (Weinh)
January 2025
Frontiers Science Center for Molecular Design Breeding, Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China.
Rice is highly sensitive to cold stress, particularly at the booting stage, which significantly threatens rice production. In this study, we cloned a gene, CTB6, encoding a lipid transfer protein involved in cold tolerance at the booting stage in rice, based on our previous fine-mapped quantitative trait locus (QTL) qCTB10-2. CTB6 is mainly expressed in the tapetum and young microspores of the anther.
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