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Bacteriological Agents and Resistance Profiles in Neonatal Sepsis from a Poorly Regulated Antimicrobial Access Setting: Time for Action.
West Afr J Med
September 2024
Medical Microbiology & Parasitology Department, University of Ilorin, Ilorin, Nigeria. Email:
Background: Neonatal sepsis (NNS) is a known cause of morbidity and mortality especially in developing countries. The global resistance scourge may worsen the management outcomes of NNS. This study aims to determine the current profile of bacteriological agents of NNS, their resistance status and associated mortality in our setting.
View Article and Find Full Text PDFEx Vivo Propagation of Pinctada Birnavirus Using Mantle Tissue Fragment Culture: Application for Measuring Replication at Different Temperatures, TCID Assay, and UV Sensitivity.
Pathogens
January 2025
Japan Fisheries Research and Education Agency, Pathology Division, Aquaculture Research Department, Fisheries Technology Institute, Minami-Ise 516-0193, Mie, Japan.
Pinctada birnavirus (PiBV) is the causative agent of summer atrophy in pearl oyster ( (Gould)). The disease, which induces mass mortality in juveniles less than 1 year old and abnormalities in adults, was first reported in Japan in 2019. Research on the disease has been hindered by the lack of cell lines capable of propagating PiBV.
View Article and Find Full Text PDFBacterial Isolation from Natural Grassland on Nitrogen-Free Agar Yields Many Strains Without Nitrogenase.
Microorganisms
January 2025
Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA.
Nitrogen inputs for sustainable crop production for a growing population require the enhancement of biological nitrogen fixation. Efforts to increase biological nitrogen fixation include bioprospecting for more effective nitrogen-fixing bacteria. As bacterial nitrogenases are extremely sensitive to oxygen, most primary isolation methods rely on the use of semisolid agar or broth to limit oxygen exposure.
View Article and Find Full Text PDFEvaluating the effect of biochar rate and combination with fertilizer on the dynamics of soil nitrogen supply in tea plantation.
Sci Rep
January 2025
Department of Plant, Food, and Environmental Sciences, Dalhousie University, Truro, B2N 5E3, Nova Scotia, Canada.
Tea plantations commonly receive substantial quantities of nitrogen (N) fertilizer, with potential for considerable N loss to occur. This study assessed N retention in acidic tea plantation soil and examined how different biochar application rates and fertilizer combinations affect N dynamics, highlighting the importance of innovative technologies to monitor and enhance N supply management. This research adopted a modified 2-week aerobic incubation and ion-exchange membrane (IEM) techniques to evaluate the soil N supply in tea plantations following early-summer top-dressing as influenced by various biochar rates and fertilizer combinations.
View Article and Find Full Text PDFThe active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds.
Commun Earth Environ
January 2025
Center for Volatile Interactions (VOLT), Department of Biology, University of Copenhagen, Universitetsparken 15, Copenhagen, Denmark.
Permafrost is a considerable carbon reservoir harboring up to 1700 petagrams of carbon accumulated over millennia, which can be mobilized as permafrost thaws under global warming. Recent studies have highlighted that a fraction of this carbon can be transformed to atmospheric volatile organic compounds, which can affect the atmospheric oxidizing capacity and contribute to the formation of secondary organic aerosols. In this study, active layer soils from the seasonally unfrozen layer above the permafrost were collected from two distinct locations of the Greenlandic permafrost and incubated to explore their roles in the soil-atmosphere exchange of volatile organic compounds.
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