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Activity of Aztreonam-avibactam and other β-lactamase inhibitor combinations against Gram-negative bacteria isolated from patients hospitalized with pneumonia in United States medical centers (2020-2022).
BMC Pulm Med
January 2025
Element Iowa City (JMI Laboratories), 345 Beaver Kreek Centre, Suite A North Liberty, Iowa, IA, 52317, USA.
Background: Initial antimicrobial therapy for pneumonia is frequently empirical and resistance to antimicrobial agents represents a great challenge to the treatment of patients hospitalized with pneumonia. We evaluated the frequency and antimicrobial susceptibility of Gram-negative bacteria causing pneumonia in US hospitals.
Methods: Bacterial isolates were consecutively collected (1/patient) from patients hospitalized with pneumonia and the susceptibility of Gram-negative bacilli (3,911 Enterobacterales and 2,753 non-fermenters) was evaluated by broth microdilution in a monitoring laboratory.
Characterization, Identification, and Biosafety Evaluation of Multifaceted Traits of Plant Growth-Promoting Endophytes for Ameliorating Productivity of Forage Sorghum.
Curr Microbiol
January 2025
School of Organic Farming, Punjab Agricultural University, Ludhiana, 141004, India.
Endophytes are bacteria that inhabit host plants for most of their life cycle without causing harm. In the study, 15 endophytic bacteria were isolated from 30 forage Sorghum plants and assessed for various plant growth-promoting (PGP) traits, such as phosphate solubilization, 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity, ammonia production, siderophore production, gibberellic acid production, Indole-3-acetic acid (IAA) production, and zinc solubilization. One isolate, JJG_Zn, demonstrated multiple PGP activities and was identified as Enterobacter sp.
View Article and Find Full Text PDFSlow sand filters with variable filtration rates for rainwater purification: Microecological differences between biofilm and water phases.
J Environ Manage
January 2025
China Architecture Design and Research Group, Beijing, 100044, PR China; Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, PR China.
Slow sand filters (SSFs) have been increasingly applied to rainwater purification in recent years, but the response of SSFs to fluctuating rainfall, as well as the biofilm- and water-phase microecology in SSFs are still poorly understood. This study systematically evaluated the rainwater purification performance of SSFs and compared the bacterial community structure, assembly processes and molecular ecological interactions between the biofilm and water phases. The activated carbon and activated alumina filters exhibited the best performance for NH-N (18.
View Article and Find Full Text PDFHarnessing PGPRs from Asparagus officinalis to Increase the Growth and Yield of Zea mays L.
Microb Ecol
January 2025
Department of Biotechnology, Center for Research and Innovation in Multidisciplinary Active Sciences (CIICAM), Chiclayo, Peru.
Microbial biotechnology employs techniques that rely on the natural interactions that occur in ecosystems. Bacteria, including rhizobacteria, play an important role in plant growth, providing crops with an alternative that can mitigate the negative effects of abiotic stress, such as those caused by saline environments, and increase the excessive use of chemical fertilizers. The present study examined the promoting potential of bacterial isolates obtained from the rhizospheric soil and roots of the Asparagus officinalis cultivar UF-157 F2 in Viru, la Libertad, Peru.
View Article and Find Full Text PDFOccurrence of Antibiotic-Resistant Bacteria in Urban Surface Water Sources in Bangladesh.
Curr Microbiol
January 2025
Fisheries and Marine Resources Technology Discipline, Khulna University, Khulna, 9208, Bangladesh.
Infections caused by antibiotic-resistant bacteria (ARB) result in an estimated 1.27 million human deaths annually worldwide. Surface waters are impacted by anthropogenic factors, which contribute to the emergence and spread of ARB in the aquatic environment.
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