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The PurR family transcriptional regulator promotes butenyl-spinosyn production in Saccharopolyspora pogona.
Appl Microbiol Biotechnol
January 2025
Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Institute of Biochemical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
Butenyl-spinosyn, derived from Saccharopolyspora pogona, is a broad-spectrum and effective bioinsecticide. However, the regulatory mechanism affecting butenyl-spinosyn synthesis has not been fully elucidated, which hindered the improvement of production. Here, a high-production strain S.
View Article and Find Full Text PDFAbnormalities in mitochondrial energy metabolism induced by cryopreservation negatively affect goat sperm motility.
Front Vet Sci
January 2025
Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.
The motility of sperm decreases following cryopreservation, which is closely associated with mitochondrial function. However, the alterations in mitochondrial metabolism after sperm freezing in goats remain unclear. This experiment aimed to investigate the impact of ultra-low temperature freezing on goat sperm's mitochondrial energy metabolism and its potential correlation with sperm motility.
View Article and Find Full Text PDFAn update on active and passive surveillance for African swine fever in the Dominican Republic.
Sci Rep
January 2025
Center for Animal Health and Food Safety, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.
African swine fever (ASF) is a viral, hemorrhagic disease of swine that is reportable to the World Organisation for Animal Health. Since 2007, ASF has been expanding globally and causing severe disruption to the global swine industry. In 2021, ASF was detected in the Dominican Republic, prompting an emergency response from local and international officials.
View Article and Find Full Text PDFAirborne Escherichia coli bacteria biosynthesize lipids in response to aerosolization stress.
Sci Rep
January 2025
Aerosol Technology Laboratory, Biological and Agricultural Engineering Department, Texas A&M University, College Station, TX, 77843, USA.
Gram-negative bacteria pose an increased threat to public health because of their ability to evade the effects of many antimicrobials with growing antibiotic resistance globally. One key component of gram-negative bacteria resistance is the functionality and the cells' ability to repair the outer membrane (OM) which acts as a barrier for the cell to the external environment. The biosynthesis of lipids, particularly lipopolysaccharides, or lipooligosaccharides (LPS/LOS) is essential for OM repair.
View Article and Find Full Text PDFHeat-stable single-helical structures formed during the extrusion process play a key role in the cooking and texture qualities of rice noodles.
Int J Biol Macromol
January 2025
State Key Laboratory of Food Science and Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang 330047, China; International Institute of Food Innovation Co, Ltd, Nanchang University, Nanchang 330200, China. Electronic address:
Extrusion is a critical process in rice noodle production. However, the underlying mechanism by which it influences noodle quality remains inadequately understood. In this study, rice noodles were processed at extrusion temperatures ranging from 100 °C to 140 °C and characterized in terms of molecular structure, short- and long-range order, microstructure, cooking loss, and texture properties.
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