Wildfires represent a fundamental and profound disturbance in many ecosystems, and their frequency and severity are increasing in many regions of the world. Fire affects soil by removing carbon in the form of CO and transforming remaining surface carbon into pyrolyzed organic matter (PyOM). Fires also generate substantial necromass at depths where the heat kills soil organisms but does not catalyze the formation of PyOM. species strongly dominate soil fungal communities within weeks to months after fire. However, the carbon pool (i.e., necromass or PyOM) that fuels their rise in abundance is unknown. We used a isolate from the catastrophic 2013 Rim Fire (CA, United States) to ask whether is capable of metabolizing PyOM. grew readily on agar media where the sole carbon source was PyOM (specifically, pine wood PyOM produced at 750°C). Using RNAseq, we investigated the response of to PyOM and observed a comprehensive induction of genes involved in the metabolism and mineralization of aromatic compounds, typical of those found in PyOM. Lastly, we used C-labeled 750°C PyOM to demonstrate that is capable of mineralizing PyOM to CO. Collectively, our results indicate a robust potential for to liberate carbon from PyOM in post-fire ecosystems and return it to the bioavailable carbon pool.
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http://dx.doi.org/10.3389/fmicb.2021.729289 | DOI Listing |
Int J Mol Sci
December 2024
Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St, 90-237 Łódź, Poland.
Alkaptonuria (AKU) is a genetically determined disease associated with disorders of tyrosine metabolism. In AKU, the deposition of homogentisic acid polymers contributes to the pathological ossification of cartilage tissue. The controlled use of biomimetics similar to deposits observed in cartilage during AKU potentially may serve the development of new bone regeneration therapy based on the activation of osteoblasts.
View Article and Find Full Text PDFEnviron Sci Process Impacts
August 2024
Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, USA.
Following wildfires, partially combusted biomass remains on the forest floor and erosion from the landscape can release dissolved pyrogenic organic matter (dPyOM) to surface waters. Therefore, post-fire alterations to dissolved organic matter (DOM) in aquatic systems may play a vital role in DOM stability and biogeochemical cycles. Dissolved PyOM biodegradation remains poorly understood and is expected to vary with combustion temperature and fuel source.
View Article and Find Full Text PDFJ Natl Med Assoc
June 2024
Howard University College of Pharmacy, 2300 4th Street, NW, Washington, DC 20059, United States.
Background: The opioid crisis within the United States has been widely studied; however, some gaps within the literature still exist. There is limited information on trends in opioid misuse as it relates to income among a national sample of Black Women. Given the recent increase in opioid overdose deaths in Black Americans and the vulnerability of women who misuse opioids, research in this population is important.
View Article and Find Full Text PDFInt J Mol Sci
September 2023
Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Łódź, 90-237 Łódź, Poland.
() infection is the most common cause of chronic gastritis, peptic ulcers and gastric cancer. Successful colonization of the stomach by is related to the complex interactions of these bacteria and its components with host cells. The growing antibiotic resistance of and various mechanisms of evading the immune response have forced the search for new biologically active substances that exhibit antibacterial properties and limit the harmful effects of these bacteria on gastric epithelial cells and immune cells.
View Article and Find Full Text PDFAnal Chem
February 2022
National High Magnetic Field Laboratory, Ion Cyclotron Resonance Facility, Florida State University,1800 East Paul Dirac Drive, Tallahassee, Florida 32310-4005, United States.
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