Cytoplasmic membrane iron permease systems in the bacterial cell envelope

10.2741/1542 ◽  
2005 ◽  
Vol 10 (1-3) ◽  
pp. 462 ◽  
Author(s):  
Wolfgang, Koster
Keyword(s):  
Bacterial Cell ◽  
Cytoplasmic Membrane ◽  
Cell Envelope ◽  
Bacterial Cell Envelope

scholarly journals User experience: Using national Cryo EM centers towards studying lipid transport across the bacterial cell envelope

2021 ◽  
Vol 27 (S1) ◽  
pp. 1422-1422
Author(s):  
Gira Bhabha ◽  
Damian Ekiert ◽  
Nicolas Coudray ◽  
Georgia Isom ◽  
Mark MacRae ◽  
...  
Keyword(s):  
User Experience ◽  
Bacterial Cell ◽  
Cell Envelope ◽  
Lipid Transport ◽  
Bacterial Cell Envelope

Isoporous ultrafiltration membranes from bacterial cell envelope layers

1988 ◽  
Vol 36 ◽  
pp. 179-186 ◽  
Author(s):  
Margit Sára ◽  
Catherine Manigley ◽  
Günter Wolf ◽  
Uwe B. Sleytr
Keyword(s):  
Bacterial Cell ◽  
Cell Envelope ◽  
Ultrafiltration Membranes ◽  
Bacterial Cell Envelope

scholarly journals Nanosilver Targets the Bacterial Cell Envelope: The Link with Generation of Reactive Oxygen Radicals

2020 ◽  
Vol 12 (5) ◽  
pp. 5557-5568 ◽  
Author(s):  
Cindy Gunawan ◽  
Merisa B. Faiz ◽  
Riti Mann ◽  
Simon R. S. Ting ◽  
Georgios A. Sotiriou ◽  
...  
Keyword(s):  
Bacterial Cell ◽  
Oxygen Radicals ◽  
Cell Envelope ◽  
Reactive Oxygen ◽  
Bacterial Cell Envelope

scholarly journals Insect Gut Symbiont Susceptibility to Host Antimicrobial Peptides Caused by Alteration of the Bacterial Cell Envelope

2015 ◽  
Vol 290 (34) ◽  
pp. 21042-21053 ◽  
Author(s):  
Jiyeun Kate Kim ◽  
Dae Woo Son ◽  
Chan-Hee Kim ◽  
Jae Hyun Cho ◽  
Roberta Marchetti ◽  
...  
Keyword(s):  
Antimicrobial Peptides ◽  
Bacterial Cell ◽  
Biochemical Characterization ◽  
Cultured Cells ◽  
Cell Envelope ◽  
Bacterial Cell Envelope ◽  
Symbiotic Interactions ◽  
Gut Symbionts ◽  
Insect Gut

The molecular characterization of symbionts is pivotal for understanding the cross-talk between symbionts and hosts. In addition to valuable knowledge obtained from symbiont genomic studies, the biochemical characterization of symbionts is important to fully understand symbiotic interactions. The bean bug (Riptortus pedestris) has been recognized as a useful experimental insect gut symbiosis model system because of its cultivatable Burkholderia symbionts. This system is greatly advantageous because it allows the acquisition of a large quantity of homogeneous symbionts from the host midgut. Using these naïve gut symbionts, it is possible to directly compare in vivo symbiotic cells with in vitro cultured cells using biochemical approaches. With the goal of understanding molecular changes that occur in Burkholderia cells as they adapt to the Riptortus gut environment, we first elucidated that symbiotic Burkholderia cells are highly susceptible to purified Riptortus antimicrobial peptides. In search of the mechanisms of the increased immunosusceptibility of symbionts, we found striking differences in cell envelope structures between cultured and symbiotic Burkholderia cells. The bacterial lipopolysaccharide O antigen was absent from symbiotic cells examined by gel electrophoretic and mass spectrometric analyses, and their membranes were more sensitive to detergent lysis. These changes in the cell envelope were responsible for the increased susceptibility of the Burkholderia symbionts to host innate immunity. Our results suggest that the symbiotic interactions between the Riptortus host and Burkholderia gut symbionts induce bacterial cell envelope changes to achieve successful gut symbiosis.

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