Article Full Text - Aerosol and Air Quality Research
... ratio of viable bacterial cells to total bacterial cells) by measuring total and non-viable cells with different dyes and obtained the viability by subtracting non-viable cell counts from total cell counts. A counter, the Ultraviolet Aerodynamic Particle Sizer (UV-APS) which is a fluorescence-based ...
... ratio of viable bacterial cells to total bacterial cells) by measuring total and non-viable cells with different dyes and obtained the viability by subtracting non-viable cell counts from total cell counts. A counter, the Ultraviolet Aerodynamic Particle Sizer (UV-APS) which is a fluorescence-based ...
Interaction of Bacterial Populations in Coupled Microchambers
... studying interacting bacterial populations is presented in this work. Bacterial cultures were grown in a device within distinct microchambers and channels that are separated by porous membranes. This membrane acts as a physical boundary for the populations in each chamber, nevertheless it enables ch ...
... studying interacting bacterial populations is presented in this work. Bacterial cultures were grown in a device within distinct microchambers and channels that are separated by porous membranes. This membrane acts as a physical boundary for the populations in each chamber, nevertheless it enables ch ...
Directed Reading: Bacteria`s Role in the World
... so often that it makes it hard to tell how many types there are. Answers will vary. Sample answer: Viruses are hard to fight because they are so small and change so often. L N N N L Answers will vary. Sample answer: Viruses can reproduce only inside a living cell that acts as a host. host Answers wi ...
... so often that it makes it hard to tell how many types there are. Answers will vary. Sample answer: Viruses are hard to fight because they are so small and change so often. L N N N L Answers will vary. Sample answer: Viruses can reproduce only inside a living cell that acts as a host. host Answers wi ...
Experimental taphonomy of giant sulphur bacteria: implications for
... with fluorescein isothiocyanate, the vacuole does not take up the stain as the vacuole contains aqueous nitrate, not Proc. R. Soc. B (2012) ...
... with fluorescein isothiocyanate, the vacuole does not take up the stain as the vacuole contains aqueous nitrate, not Proc. R. Soc. B (2012) ...
Why are bacteria different from eukaryotes? INTERVIE W Open Access Julie A Theriot*
... size and complexity. Archaea, which make up the third major domain of life, have some molecular signatures that seem quite similar to those in eukaryotes [1], but morphologically they look very much like bacteria. Indeed this is the reason that we didn’t recognize them as a distinct domain until ver ...
... size and complexity. Archaea, which make up the third major domain of life, have some molecular signatures that seem quite similar to those in eukaryotes [1], but morphologically they look very much like bacteria. Indeed this is the reason that we didn’t recognize them as a distinct domain until ver ...
19-1 Bacteria
... Two different types of cell walls are found in eubacteria. A method called gram staining tells them apart. Gram-positive bacteria have thick cell walls with large amounts of peptidoglycan. Gram-negative bacteria have thinner cell walls inside an outer lipid layer. Slide 17 of 40 End Show ...
... Two different types of cell walls are found in eubacteria. A method called gram staining tells them apart. Gram-positive bacteria have thick cell walls with large amounts of peptidoglycan. Gram-negative bacteria have thinner cell walls inside an outer lipid layer. Slide 17 of 40 End Show ...
tethering redox proteins to the outer membrane in Neisseria and
... Soluble periplasmic homologues of Laz, such as the azurin from Pseudomonas aeruginosa have been shown to have roles in apoptosis, in particular of cancer cells (see, e.g., [22]). N. meningitidis Laz has also been shown to be competent at entering glioblastoma cells and causing a high level of cytoto ...
... Soluble periplasmic homologues of Laz, such as the azurin from Pseudomonas aeruginosa have been shown to have roles in apoptosis, in particular of cancer cells (see, e.g., [22]). N. meningitidis Laz has also been shown to be competent at entering glioblastoma cells and causing a high level of cytoto ...
Bacterial Endocytobionts within Endosymbiotic Ciliates in Dreissena
... enclosed in individual host vacuoles (Fig. 7). The twomembrane cell wall structure typical of Gram-negative bacteria was present in both types (Figs 6, 7). Both types of bacteria were generally located everywhere in the cytoplasm, sometimes even close to the nuclei (Fig. 8). The inner structure of t ...
... enclosed in individual host vacuoles (Fig. 7). The twomembrane cell wall structure typical of Gram-negative bacteria was present in both types (Figs 6, 7). Both types of bacteria were generally located everywhere in the cytoplasm, sometimes even close to the nuclei (Fig. 8). The inner structure of t ...
VIII. B S
... • Introduction and objectives of the study Microbial mats are dynamic systems with important changes in oxygen and sulfide gradients during a day/night cycle (Fründ and Cohen, 1992). Indeed, the presence of steep gradients in the concentrations of oxygen and sulfide are characteristic of their verti ...
... • Introduction and objectives of the study Microbial mats are dynamic systems with important changes in oxygen and sulfide gradients during a day/night cycle (Fründ and Cohen, 1992). Indeed, the presence of steep gradients in the concentrations of oxygen and sulfide are characteristic of their verti ...
Cellular lipidomics
... According to the dogma, rafts are small and transient unless stabilized by some ordering component (Kusumi et al, 2004). This could be proteins, like caveolin on the inside of the membrane (Lisanti et al, 1994; Parton, 1994) or activated receptors, a lipid, like ceramide generated by signaling sphin ...
... According to the dogma, rafts are small and transient unless stabilized by some ordering component (Kusumi et al, 2004). This could be proteins, like caveolin on the inside of the membrane (Lisanti et al, 1994; Parton, 1994) or activated receptors, a lipid, like ceramide generated by signaling sphin ...
27_InstGuide_AR
... chemo- = chemical; hetero- = different (chemoheterotroph: an organism that must consume organic molecules for both energy and carbon) endo- = inner, within (endotoxin: a component of the outer membranes of certain gram-negative bacteria responsible for generalized symptoms of fever and ache) exo- = ...
... chemo- = chemical; hetero- = different (chemoheterotroph: an organism that must consume organic molecules for both energy and carbon) endo- = inner, within (endotoxin: a component of the outer membranes of certain gram-negative bacteria responsible for generalized symptoms of fever and ache) exo- = ...
Oxidation of Hg(0) - Department of Marine and Coastal Sciences
... In subsurface environments, anaerobic bacteria are the principal agents mediating the redox transformation of inorganic elements (Lovley and Chapelle, 1995). Anaerobes isolated from soils and sediments have been shown to catalyze the oxidation of redox-active elements such as Fe(II), As(III), and U( ...
... In subsurface environments, anaerobic bacteria are the principal agents mediating the redox transformation of inorganic elements (Lovley and Chapelle, 1995). Anaerobes isolated from soils and sediments have been shown to catalyze the oxidation of redox-active elements such as Fe(II), As(III), and U( ...
Lipid peroxidation modifies the assembly of biological membranes
... of the oxPL classes adopt a particular conformation. Lipid peroxidation is achieved by addition of numerous polar molecules on fatty acid chains (Catala, 2009). Consequently, when cell membranes undergo oxidation, if not adapted by the action of phospholipases, they may “produce whiskers” including ...
... of the oxPL classes adopt a particular conformation. Lipid peroxidation is achieved by addition of numerous polar molecules on fatty acid chains (Catala, 2009). Consequently, when cell membranes undergo oxidation, if not adapted by the action of phospholipases, they may “produce whiskers” including ...
1 Bacteria and Archaea
... Cyanobacteria are producers. These bacteria have a green pigment called chlorophyll. Chlorophyll traps the energy from the sun. The cell uses this energy to make food. Some scientists think that billions of years ago, bacteria similar to cyanobacteria began to live inside larger cells. According to ...
... Cyanobacteria are producers. These bacteria have a green pigment called chlorophyll. Chlorophyll traps the energy from the sun. The cell uses this energy to make food. Some scientists think that billions of years ago, bacteria similar to cyanobacteria began to live inside larger cells. According to ...
Rapid Method For Transmission Electron Microscope Study Of
... were used in their studies are more complex and thicker compare to the bacteria that we used in this study. Therefore, the penetration and effects of the GA would be harsh for the bacteria, if they were exposed for a longer time as in the SMTEM. Even though the GA was exposed shorter time in the RMT ...
... were used in their studies are more complex and thicker compare to the bacteria that we used in this study. Therefore, the penetration and effects of the GA would be harsh for the bacteria, if they were exposed for a longer time as in the SMTEM. Even though the GA was exposed shorter time in the RMT ...
Testing Artificial Gene Design to Inhibit the Growth of E. cole As an
... proteases which recognize bulky hydrophobic or basic residues at those locations. (Wickner et al, 1999) The other gene sequence was similar but had the addition of acidic residues every 5 amino acids in an effort to prevent DnaK from binding to the proteins. (González-Montalbán et al, 2005) By neces ...
... proteases which recognize bulky hydrophobic or basic residues at those locations. (Wickner et al, 1999) The other gene sequence was similar but had the addition of acidic residues every 5 amino acids in an effort to prevent DnaK from binding to the proteins. (González-Montalbán et al, 2005) By neces ...
Patterns of pathogenesis: discrimination of pathogenic and nonpathogenic microbes by the innate immune system.
... in which PAMPs are sensed, and this contextual information is used to generate distinct responses. Issues that Complicate the PAMP Hypothesis One oft-heard criticism of the PAMP hypothesis is that PAMPs are not restricted to pathogens but are instead produced by all microbes. Thus, one suggestion ha ...
... in which PAMPs are sensed, and this contextual information is used to generate distinct responses. Issues that Complicate the PAMP Hypothesis One oft-heard criticism of the PAMP hypothesis is that PAMPs are not restricted to pathogens but are instead produced by all microbes. Thus, one suggestion ha ...
Bacterial digestive enzyme activity in the stomach and hepatopancreas of Meganyctiphanes norvegica (M. Sars, 1857)
... a wide range of organic substrates. The euphausiid Meganyctiphanes norvegica for example is mainly carnivorous, but it can use phytoplankton as a staple food. As it generally feeds on copepods, chitin forms part of its diet, and its chitinase activity has been demonstrated and partly characterised ( ...
... a wide range of organic substrates. The euphausiid Meganyctiphanes norvegica for example is mainly carnivorous, but it can use phytoplankton as a staple food. As it generally feeds on copepods, chitin forms part of its diet, and its chitinase activity has been demonstrated and partly characterised ( ...
Similarities and differences in the responses of microorganisms to
... from spores themselves. Further, variations in chemical composition may occur on growth under different conditions producing altered responses to antimicrobial agents. It is not surprising, therefore, that microbial susceptibilities to biocides and especially to antibiotics differ greatly. It should ...
... from spores themselves. Further, variations in chemical composition may occur on growth under different conditions producing altered responses to antimicrobial agents. It is not surprising, therefore, that microbial susceptibilities to biocides and especially to antibiotics differ greatly. It should ...
Effect of Natural Sunlight on Bacterial Activity and Differential
... marine snow and sediments. The results concur to show interspecific variability in sensitivity to UVR and also in the subsequent recovery potential of the isolates (2, 6, 26). Other significant results are that pigmentation seems not to be directly related to resistance of marine isolates and that b ...
... marine snow and sediments. The results concur to show interspecific variability in sensitivity to UVR and also in the subsequent recovery potential of the isolates (2, 6, 26). Other significant results are that pigmentation seems not to be directly related to resistance of marine isolates and that b ...
Bacteria-host relationship: ubiquitin ligases as weapons of
... [30]. The interaction between Pseudomonas and its host involves a co-evolution of virulence effectors and the ETI pathway, which in many aspects could be depicted as a type of ‘arms race’. Not surprisingly, bacterial Ub ligase-like effectors are at the heart of this battle. For example, the Pseudomo ...
... [30]. The interaction between Pseudomonas and its host involves a co-evolution of virulence effectors and the ETI pathway, which in many aspects could be depicted as a type of ‘arms race’. Not surprisingly, bacterial Ub ligase-like effectors are at the heart of this battle. For example, the Pseudomo ...
Biological synthesis of fluorescent nanoparticles by cadmium and
... Background: Fluorescent nanoparticles or quantum dots (QDs) have been intensely studied for basic and applied research due to their unique size-dependent properties. There is an increasing interest in developing ecofriendly methods to synthesize these nanoparticles since they improve biocompatibili ...
... Background: Fluorescent nanoparticles or quantum dots (QDs) have been intensely studied for basic and applied research due to their unique size-dependent properties. There is an increasing interest in developing ecofriendly methods to synthesize these nanoparticles since they improve biocompatibili ...
390K
... Firstly the results produced in the present study may reflect the bacterial community present at the time of sampling for hybridization experiments. ...
... Firstly the results produced in the present study may reflect the bacterial community present at the time of sampling for hybridization experiments. ...
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... this problem. Finally, we provide examples of how bacterial luminescence can be employed in marine biotechnology, especially in the detection of toxic and mutagenic pollution in aquatic environments. ...
... this problem. Finally, we provide examples of how bacterial luminescence can be employed in marine biotechnology, especially in the detection of toxic and mutagenic pollution in aquatic environments. ...
The anammoxosome: an intracytoplasmic compartment in anammox
... thus be essential to the cell’s viability. 1.1. Compartmentalization in Planctomycetes Most Planctomycetes are aerobic chemoorganoheterotrophs. Their compartmentalization is in some cases complex but always involves a single intracytoplasmic membrane defining a major cell compartment. Based on electr ...
... thus be essential to the cell’s viability. 1.1. Compartmentalization in Planctomycetes Most Planctomycetes are aerobic chemoorganoheterotrophs. Their compartmentalization is in some cases complex but always involves a single intracytoplasmic membrane defining a major cell compartment. Based on electr ...
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.