CARBAPENEM-resistant bacteriaThe article focuses on the challenges posed by a type of bacteria Acinetobacter baumannii, emphasizing its role in healthcare-associated infections and the increased threat during the COVID-19 pandemic. Topics discussed include the classification of A. bauman...
Type VI secretion systems (T6SS) are a class of macromolecular secretion machines that are utilized by a number of bacteria for inter-bacterial competition or to elicit responses in eukaryotic cells. Acinetobacter baumannii is an opportunistic pathogen that causes severe infections in humans. These in...
all samples of soil or surface water. It was estimated that .001% of the total culturable, heterotrophic, aerobic bacteria in soil and water are acinetobacters. Acinetobacters also are part of the human skin flora and have been found in sewage. In an epidemiological survey, 43% of nonhospit...
It is known that a fluid OM forms a powerful barrier in gram-negative bacteria. A permeability assay was performed to test the effect of the lack of OmpA-like proteins on OM. DAPI (4′,6-diamidino-2-phenylindole (DAPI)) is an impermeable, blue fluorescent DNA stain mostly excluded from ...
OMV production was significantly increased in the ΔAbOmpA mutant compared to wild-type bacteria as demonstrated by quantitation of proteins and lipopolysaccharides (LPS) packaged in OMVs. LPS profiles prepared from OMVs from wild-type bacteria and the ΔAbOmpA mutant had identical patterns, but ...
Shell eggs can be spoiled by bacteria that enter the egg pores in the shell, penetrate the egg membranes, and overcome the antimicrobial defense mechanisms of the albumin. The Gram-negative bacteria that cause egg rots – that is, spoilage –include acinetobacters, which in some instances have...
carbapenems, have secured it a place in the group of ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.) [5] and a top place in the WHO’s global priority list of antibiotic-resistant bacteria [...
Bacteria have invented several sophisticated secretion systems that guide various proteins to extracytoplasmic locations and in some cases inject them directly into hosts. Of these, the Sec system is ubiquitous, essential and by far the best understood. Secretory polypeptides are sorted from cytoplasmic...
Figure 1 illustrated the survival rate of mice inoculated with different A. baumannii strains. The mice mortality in the YC128 group was significantly higher than in the YC156 group (P < 0.01). Furthermore, when inoculated with 107 CFU of bacteria, the mice mortality rate in the YC128...
When Acinetobacter agar was used to test 39 samples of butter, only one sample was shown to contain Acinetobacter and none of the other eight types of bacteria independently isolated from these butters grew on the Acinetobacter agar.doi:10.1016/0958-6946(94)90068-XFlint, Steve H....