Cooperative organization of bacterial colonies: from genotype to
... The C morphotype also exhibited a morphology diagram with a profusion of most beautiful and complex patterns (Figure 3) (13, 16, 17). In addition to the enormous difference in morphologies between the genetically similar variants, microscopic observations indicated that the cells were longer than th ...
... The C morphotype also exhibited a morphology diagram with a profusion of most beautiful and complex patterns (Figure 3) (13, 16, 17). In addition to the enormous difference in morphologies between the genetically similar variants, microscopic observations indicated that the cells were longer than th ...
Journal of Eukaryotic Microbiology
... unlikely to be an energetically efficient strategy for killing algal cells suspended in seawater, based on the calculated volume/ volume ratio of bacterial cells/seawater of 1027 (Azam, Smith, and Carlucci 1992). However, this approach may be efficient in low-diffusion microhabitats, such as marine ...
... unlikely to be an energetically efficient strategy for killing algal cells suspended in seawater, based on the calculated volume/ volume ratio of bacterial cells/seawater of 1027 (Azam, Smith, and Carlucci 1992). However, this approach may be efficient in low-diffusion microhabitats, such as marine ...
FEMS Microbiology Ecology.
... the cortex region, and no colonization of the root xylem vessels was detected at any time. To the best of our knowledge, this is the first time this approach has been used to demonstrate endophytism of a biocontrol Pseudomonas spp. strain in a woody host such as olive using a nongnotobiotic system. ...
... the cortex region, and no colonization of the root xylem vessels was detected at any time. To the best of our knowledge, this is the first time this approach has been used to demonstrate endophytism of a biocontrol Pseudomonas spp. strain in a woody host such as olive using a nongnotobiotic system. ...
- Mochtar Riady Institute
... in their immunoregulatory function. Our result was also supported by a study on the effect of glycosylation on AFP foldability and conformational structure performed by others [13]. Using reversed-phase column HPLC to analyze two AFP variants: glycosylated cord blood-derived AFP and non-glycosylated ...
... in their immunoregulatory function. Our result was also supported by a study on the effect of glycosylation on AFP foldability and conformational structure performed by others [13]. Using reversed-phase column HPLC to analyze two AFP variants: glycosylated cord blood-derived AFP and non-glycosylated ...
Promiscuous and specific bacterial symbiont acquisition in the
... seemed to be specific and stable. Multicellular organisms usually are associated with more than one bacterial species. Ectosymbionts form entire assemblages which are designated as microbiota of the respective host. The microbiota of very ‘simple’ animals like the cnidarians Hydra (Fraune and Bosch ...
... seemed to be specific and stable. Multicellular organisms usually are associated with more than one bacterial species. Ectosymbionts form entire assemblages which are designated as microbiota of the respective host. The microbiota of very ‘simple’ animals like the cnidarians Hydra (Fraune and Bosch ...
Potentiometric titrations of Bacillus subtilis cells to low pH and a
... surface, and 2) to enable quantitative geochemical modeling of mass transport in bacteria-bearing systems. The lack of consensus for a protonation model has hampered efforts to move forward on both of these fronts. Spectroscopic investigations of metal binding on bacterial cell walls provide some co ...
... surface, and 2) to enable quantitative geochemical modeling of mass transport in bacteria-bearing systems. The lack of consensus for a protonation model has hampered efforts to move forward on both of these fronts. Spectroscopic investigations of metal binding on bacterial cell walls provide some co ...
Presence of methyl sterol and bacteriohopanepolyol
... recovered by centrifugation before initiating phase separation and was used for P-hydroxy fatty acid analysis (see below). The total lipid extract was analysed for phospholipid phosphate (Dittmer & Wells, 1969), and phospholipid esterified fatty acid by mild-alkaline methanolysis (White et al., 1979 ...
... recovered by centrifugation before initiating phase separation and was used for P-hydroxy fatty acid analysis (see below). The total lipid extract was analysed for phospholipid phosphate (Dittmer & Wells, 1969), and phospholipid esterified fatty acid by mild-alkaline methanolysis (White et al., 1979 ...
View/Open - Minerva Access
... In vivo delivery of membrane-active peptides or proteins to their target occurs with the possibility of binding to several different membrane interfaces. For instance, in the case where an antimicrobial peptide (AMP) is used against a bacterial infection, several membrane types are present, such as ...
... In vivo delivery of membrane-active peptides or proteins to their target occurs with the possibility of binding to several different membrane interfaces. For instance, in the case where an antimicrobial peptide (AMP) is used against a bacterial infection, several membrane types are present, such as ...
Molecular dynamics simulation studies of lipid bilayer
... main biological functions of membranes involve the maintenance of the cell integrity, control of interactions between the cell and its environment, separation of intracellular compartments, and receiving and transducing signals necessary for the cell functioning. As was elegantly shown by Gorter & G ...
... main biological functions of membranes involve the maintenance of the cell integrity, control of interactions between the cell and its environment, separation of intracellular compartments, and receiving and transducing signals necessary for the cell functioning. As was elegantly shown by Gorter & G ...
Applied and Environmental Microbiology
... monitored by dilution plating assays and microscopic observation of organ sections. Bacteria were chronologically detected first on root surfaces, then in root internal tissues, and finally in the fifth internode and the tissues of the fifth leaf. Analysis of the PsJN colonization patterns showed th ...
... monitored by dilution plating assays and microscopic observation of organ sections. Bacteria were chronologically detected first on root surfaces, then in root internal tissues, and finally in the fifth internode and the tissues of the fifth leaf. Analysis of the PsJN colonization patterns showed th ...
Bacterial Signals and Antagonists: The Interaction Between Bacteria
... signalling systems, one of which produces and responds to the AHL, HBHL, while the second system responds to an as yet unidentified chemical cue. In addition, the response regulator, LuxN, that binds HBHL is not a homologue of the V. fischeri LuxR, but rather is the membrane bound component of a two ...
... signalling systems, one of which produces and responds to the AHL, HBHL, while the second system responds to an as yet unidentified chemical cue. In addition, the response regulator, LuxN, that binds HBHL is not a homologue of the V. fischeri LuxR, but rather is the membrane bound component of a two ...
Membrane biogenesis in anoxygenic photosynthetic prokaryotes
... into the membrane without cleavable N-terminal signal peptides.1 LH apoproteins become oriented with amino-terminal regions at the cytoplasmic side of the membrane and carboxyl-termini exposed to the periplasmic side. Formation of a stable oligomeric LH 1 complex requires both the α- and the β-subun ...
... into the membrane without cleavable N-terminal signal peptides.1 LH apoproteins become oriented with amino-terminal regions at the cytoplasmic side of the membrane and carboxyl-termini exposed to the periplasmic side. Formation of a stable oligomeric LH 1 complex requires both the α- and the β-subun ...
Chemotaxis in Bacteria
... transport system for whichthe attractants of the chemosensorclass are substrates. Yet both the transport and chemotaxis systems have other, independent components, and transport is not required for chemotaxis. These relationships are diagramed in Figure 2. Transport and chemotaxisare thus very close ...
... transport system for whichthe attractants of the chemosensorclass are substrates. Yet both the transport and chemotaxis systems have other, independent components, and transport is not required for chemotaxis. These relationships are diagramed in Figure 2. Transport and chemotaxisare thus very close ...
Osmoregulation in Halophilic Bacteria
... the cell (as proven for Haloferax volcanii through an energy-dependent potassium uptake system) and, together with its counterion Cl–, K+ can be found in molar concentrations in the cytoplasm. Because the K+ concentration inside the cell is 100 times higher than in the surrounding environment, a par ...
... the cell (as proven for Haloferax volcanii through an energy-dependent potassium uptake system) and, together with its counterion Cl–, K+ can be found in molar concentrations in the cytoplasm. Because the K+ concentration inside the cell is 100 times higher than in the surrounding environment, a par ...
Growth and killing of a Salmonella enterica serovar
... Furthermore, as bacteria are grown in vitro prior to their microinjection, the growth conditions used may have an effect on the set of bacterial genes expressed at the moment of their introduction into the cytosol, and therefore on the bacterial response. This second method has been applied to deliv ...
... Furthermore, as bacteria are grown in vitro prior to their microinjection, the growth conditions used may have an effect on the set of bacterial genes expressed at the moment of their introduction into the cytosol, and therefore on the bacterial response. This second method has been applied to deliv ...
Induction of light emission by luminescent bacteria treated with UV
... Introduction Light-emitting bacteria are the most abundant and widespread of luminescent organisms (MEIGHEN 1994). Most species of such bacteria live in marine environments (NEALSON 1978). It is well established that luminescent bacteria emit light effectively only when they are at high cell density ...
... Introduction Light-emitting bacteria are the most abundant and widespread of luminescent organisms (MEIGHEN 1994). Most species of such bacteria live in marine environments (NEALSON 1978). It is well established that luminescent bacteria emit light effectively only when they are at high cell density ...
Distribution and prevalence of bacteria found on the door handles of
... major concern. According to a study conducted by Itah et al, Gram (+) Staphylococcus aureus, and Gram (-) enteric bacteria such as Escherichia coli, Klebsiella species, Citrobacter species, was found to contaminate various contact surfaces including chairs, tables, windows, door handles, and many ot ...
... major concern. According to a study conducted by Itah et al, Gram (+) Staphylococcus aureus, and Gram (-) enteric bacteria such as Escherichia coli, Klebsiella species, Citrobacter species, was found to contaminate various contact surfaces including chairs, tables, windows, door handles, and many ot ...
EXPERIMENT 3 - UniMAP Portal
... Aseptically, transfer the microorganisms on a corner of the agar medium plate and streak the plate slowly (Figure 1). Care should be taken not to gouge into the medium with the loop. Flame the loop until red-hot and cool it down for a while. Then, make 5 to 6 streaks from area 1 through area 2 F ...
... Aseptically, transfer the microorganisms on a corner of the agar medium plate and streak the plate slowly (Figure 1). Care should be taken not to gouge into the medium with the loop. Flame the loop until red-hot and cool it down for a while. Then, make 5 to 6 streaks from area 1 through area 2 F ...
Charge asymmetry in the proteins of the outer membrane
... exteriors that are extremely hydrophobic and protein-facing interiors that are similarly hydrophobic to the hydrophobic cores of soluble proteins (Rees et al., 1989; Rees and Eisenberg, 2000). The structures of OMBBs, on the other hand, are such that they are more like inside-out soluble proteins. T ...
... exteriors that are extremely hydrophobic and protein-facing interiors that are similarly hydrophobic to the hydrophobic cores of soluble proteins (Rees et al., 1989; Rees and Eisenberg, 2000). The structures of OMBBs, on the other hand, are such that they are more like inside-out soluble proteins. T ...
Evaluation of cell membrane integrity as a potential antimicrobial
... to pass through. Hence there is a pivotal relationship between permeability and enhancement activity and toxicity of the drug since there is easy passage into the cell. Moreover, the permeability enhancing effect of surfactants such as saponins is not only related to their nature, but also depends o ...
... to pass through. Hence there is a pivotal relationship between permeability and enhancement activity and toxicity of the drug since there is easy passage into the cell. Moreover, the permeability enhancing effect of surfactants such as saponins is not only related to their nature, but also depends o ...
Aquatic Microbial Ecology 58:303
... bacterial abundance, especially at night (Figs. 1 & 2). The highest and lowest values of AAP bacterial abundance at night happened at the times nearest to the highest and lowest water levels, indicating close relationships between AAP bacterial abundance and tidal currents (Fig. 4). Meanwhile, the c ...
... bacterial abundance, especially at night (Figs. 1 & 2). The highest and lowest values of AAP bacterial abundance at night happened at the times nearest to the highest and lowest water levels, indicating close relationships between AAP bacterial abundance and tidal currents (Fig. 4). Meanwhile, the c ...
Interaction of Cationic Peptides with Lipoteichoic Acid and Gram
... inhibit LPS-induced tumor necrosis factor alpha (TNF-␣) production in vitro and in vivo, and kill gramnegative bacteria. In this study, we analyzed whether these peptides were active against gram-positive bacteria; whether they could bind to lipoteichoic acid (LTA), the major proinflammatory structu ...
... inhibit LPS-induced tumor necrosis factor alpha (TNF-␣) production in vitro and in vivo, and kill gramnegative bacteria. In this study, we analyzed whether these peptides were active against gram-positive bacteria; whether they could bind to lipoteichoic acid (LTA), the major proinflammatory structu ...
Chemical–Biological Studies of Subcellular Organization in Bacteria
... the septum by synthases associated with FtsZ but does not affect the insertion of cell wall precursors along the cylindrical region of cells.17 Evaluation of the Potency and Specificity of Putative FtsZ Inhibitors in Vivo. Several other small molecules have been identified as FtsZ inhibitors; below we ...
... the septum by synthases associated with FtsZ but does not affect the insertion of cell wall precursors along the cylindrical region of cells.17 Evaluation of the Potency and Specificity of Putative FtsZ Inhibitors in Vivo. Several other small molecules have been identified as FtsZ inhibitors; below we ...
IDENTIFICATION OF BACTERIA ASSOCIATED WITH
... ton, are thus of prime importance for a better understanding of the occurrence of toxic blooms and more generally to assess bacteria–phytoplankton association in marine pelagic ecosystems. So far the physical association between bacteria and phytoplankton has been studied by different technical appr ...
... ton, are thus of prime importance for a better understanding of the occurrence of toxic blooms and more generally to assess bacteria–phytoplankton association in marine pelagic ecosystems. So far the physical association between bacteria and phytoplankton has been studied by different technical appr ...
Individual-based modelling of growth and migration of Salmonella
... bacterial movement; hence, no bacteria can escape the egg. All simulations start from the premise of an initial contamination within the albumen. This contamination could be due to vertical or horizontal transmission, in the latter case assuming that the bacteria have penetrated the shell and shell ...
... bacterial movement; hence, no bacteria can escape the egg. All simulations start from the premise of an initial contamination within the albumen. This contamination could be due to vertical or horizontal transmission, in the latter case assuming that the bacteria have penetrated the shell and shell ...
Lipopolysaccharide
Lipopolysaccharides (LPS), also known as lipoglycans and endotoxin, are large molecules consisting of a lipid and a polysaccharide composed of O-antigen, outer core and inner core joined by a covalent bond; they are found in the outer membrane of Gram-negative bacteria, and elicit strong immune responses in animals.The term lipooligosaccharide (""LOS"") is used to refer to a low molecular weight form of bacterial lipopolysaccharides.