A 93-year-old woman was diagnosed with Lysinibacillus fusiformis bacteremia complicated with coma blisters. Initial gram staining for L. fusiformis indicated the presence of gram-negative rods; however, subsequent staining of colonies from Mueller-Hinton agar revealed the presence of gram-positive and gram-negative rods with spherical endospores, and Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (VITEK ® MS and microflex® LT/SH) definitively identified the organism as L. fusiformis. The two-week administration of piperacillin/tazobactam and ampicillin resulted in an improvement of the patient's general condition, and the skin lesions gradually improved.
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http://dx.doi.org/10.1016/j.jiac.2021.10.030 | DOI Listing |
Chembiochem
January 2025
University of Freiburg: Albert-Ludwigs-Universitat Freiburg, Institute of Pharmaceutical Sciences, Albertstr. 25, 79104, Freiburg, GERMANY.
Polyphosphate kinases (PPK) play crucial roles in various biological processes, including energy storage and stress responses, through their interaction with inorganic polyphosphate (polyP) and the intracellular nucleotide pool. Members of the PPK family 2 (PPK2s) catalyse polyP‑consuming phosphorylation of nucleotides. In this study, we characterised two PPK2 enzymes from Bacillus cereus (BcPPK2) and Lysinibacillus fusiformis (LfPPK2) to investigate their substrate specificity and potential for selective nucleotide synthesis.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Environmental Studies, Institute of Graduate Studies & Research (IGSR), Alexandria University, 163 Horria Ave. El-Shatby, P.O. Box 832, Alexandria, Egypt.
Bioaerosol studies showed that wastewater treatment plants (WWTPs) are a significant source of bioaerosol emissions. In this study, 170 samples of total bacteria, total coliform, and total fungi were collected from 10 sites within a domestic WWTP, Alexandria, Egypt, using the sedimentation technique. According to the Index of Microbial Air Contamination (IMA) classes, the total bacteria range was 108-5120 CFU/dm/hour, and all samples were classified as "very poor" except one sample of an office, which was classified as "poor.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
School of Civil Engineering, Wuhan University, Wuhan 430072, China. Electronic address:
Cadmium pollution is widespread in water and soil worldwide. Microbial remediation is an effective method for removing heavy metals. This study explored the cadmium remediation mechanism and efficiency of Lysinibacillus fusiformis S01.
View Article and Find Full Text PDFMicroorganisms
November 2024
Laboratory of Molecular Genetics and Microbiology Methods, Kazan Scientific Center, Russian Academy of Sciences, 420111 Kazan, Russia.
Environ Microbiol Rep
December 2024
Department of Environmental Science and Engineering, Guangdong Technion-Israel Institute of Technology, Shantou, China.
Heavy metal pollution, particularly cadmium, poses severe environmental and health risks due to its high toxicity and mobility, necessitating effective remediation strategies. While both microbially induced carbonate precipitation (MICP) and humic acid adsorption are promising methods for heavy metal mitigation, their combined effects, particularly the influence of humic acid on the MICP process, have not been thoroughly investigated. This study explores the interaction between humic acid and MICP, revealing that humic acid significantly inhibits the MICP process by reducing urease activity, with the 10% humic acid treatment resulting in a 23.
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