Functional expression of the industrially important Pseudomonas and Burkholderia lipases, such as those from P. aeruginosa, B. cepacia and P. fluorescens, was achieved on the cell surface of Escherichia coli using the C-terminal translocator moiety (EstATu) of autotransporter protein (EstA) from P. putida. In particular, lipases which required a lipase-specific foldase (Lif) for their proper folding were for the first time displayed in the active form by coexpression of the Lif protein.
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http://dx.doi.org/10.1016/j.jbiotec.2010.01.022 | DOI Listing |
Sci Rep
January 2025
Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, Zürich, 8008, Switzerland.
Burkholderia cenocepacia H111 is an obligate aerobic bacterium which has been isolated from a cystic fibrosis (CF) patient. In CF lungs the environment is considered micro-oxic or even oxygen-depleted due to bacterial activities and limited oxygen diffusion in the mucus layer. To adapt to low oxygen concentrations, bacteria possess multiple terminal oxidases.
View Article and Find Full Text PDFMicrobiome
January 2025
Instituto de Investigación de La Viña y El Vino, Escuela de Ingeniería Agraria, Universidad de León, Avenida de Portugal, 41, León, 24009, Spain.
Microorganisms
December 2024
Laboratorio de Fisiología Molecular de Plantas, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col Chamilpa, Cuernavaca 62209, Mexico.
Bacteria associated with plants, whether rhizospheric, epiphytic, or endophytic, play a crucial role in plant productivity and health by promoting growth through complex mechanisms known as plant growth promoters. This study aimed to isolate, characterize, identify, and evaluate the potential of endophytic bacteria from the resurrection plant in enhancing plant growth, using ecotype Col. 0 as a model system.
View Article and Find Full Text PDFMicroorganisms
December 2024
Department for Sustainability, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, ENEA Casaccia Research Center, 00123 Rome, RM, Italy.
For the safe use of microbiome-based solutions in agriculture, the genome sequencing of strains composing the inoculum is mandatory to avoid the spread of virulence and multidrug resistance genes carried by them through horizontal gene transfer to other bacteria in the environment. Moreover, the annotated genomes can enable the design of specific primers to trace the inoculum into the soil and provide insights into the molecular and genetic mechanisms of plant growth promotion and biocontrol activity. In the present work, the genome sequences of some members of beneficial microbial consortia that have previously been tested in greenhouse and field trials as promising biofertilizers for maize, tomato and wheat crops have been determined.
View Article and Find Full Text PDFAntibiotics (Basel)
December 2024
Microbiology Laboratory, Bicêtre University Hospital, AP-HP Paris Saclay University, 94270 Le Kremlin-Bicêtre, France.
Background: Meropenem-vaborbactam (MEM-VAB) is a novel carbapenem-beta-lactamase-inhibitor combination that demonstrates activity against carbapenem-resistant (CR) Gram-negative bacteria, and more specifically KPC-producers, since vaborbactam is an effective inhibitor of KPC enzymes in vitro. This study aimed to describe the initial uses and efficacy of MEM-VAB for compassionate treatment during the first 21 months following its early access in France.
Method: A national multicenter retrospective study was conducted, including all patients who received at least one dose of MEM-VAB between 20 July 2020, and 5 April 2022.
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