Microscopy Microanalysis
... We here describe the in vitro formation of calcite crystals by extracellular polymeric materials ~EPS and CPS! isolated from calcifying-bacterial strains and provide evidence showing that some protein components present in these fractions could be involved in the bioprecipitation process. Bacteriall ...
... We here describe the in vitro formation of calcite crystals by extracellular polymeric materials ~EPS and CPS! isolated from calcifying-bacterial strains and provide evidence showing that some protein components present in these fractions could be involved in the bioprecipitation process. Bacteriall ...
Applications of Microscopy in Bacteriology
... thick and featureless contains peptidoglycan which comprises 50% of major componentbut have no lipid and often no protein content, accessory polymers like teichoic acid are covalently linked to peptidoglycan. On the other hand, gram-negative cells consist of a pair of membrane with thin intermediate ...
... thick and featureless contains peptidoglycan which comprises 50% of major componentbut have no lipid and often no protein content, accessory polymers like teichoic acid are covalently linked to peptidoglycan. On the other hand, gram-negative cells consist of a pair of membrane with thin intermediate ...
The polar flagellum mediates Azuspidlum brasifense
... roots, to suspended plant cells, and to inert surfaces has been reported (e.g. Umali-Garcia et a/., 1480; Jain & Patriquin, 1984; Murty & Ladha, 1987; Bashan & *Author for correspondence. Tel. 16 22 09 21; fax 16 20 07 20; email KIAAA3 l (@ BLEK UL2 l . ...
... roots, to suspended plant cells, and to inert surfaces has been reported (e.g. Umali-Garcia et a/., 1480; Jain & Patriquin, 1984; Murty & Ladha, 1987; Bashan & *Author for correspondence. Tel. 16 22 09 21; fax 16 20 07 20; email KIAAA3 l (@ BLEK UL2 l . ...
FEMS Microbiology Ecology
... mainly a black box. Hardly anything is known about the availability of nutrients (organic or inorganic), the dangers which must be survived (e.g. predation, harmful compounds) or the interactions with other rhizosphere organisms. The deficiency in our knowledge on the growth conditions in the rhizos ...
... mainly a black box. Hardly anything is known about the availability of nutrients (organic or inorganic), the dangers which must be survived (e.g. predation, harmful compounds) or the interactions with other rhizosphere organisms. The deficiency in our knowledge on the growth conditions in the rhizos ...
Prodigiosin - an antibacterial red pigment produced by Serratia
... 25 °C with 150 rpm of agitation for 72 hours. The culture was then separated by centrifugation at 5,000 g (Sigma 42k, Sartorius, Germany) for 20 minutes at 4 oC. The supernatant was tested for extracellular antibacterial activity using disc diffusion susceptibility test. The pellet was washed twice ...
... 25 °C with 150 rpm of agitation for 72 hours. The culture was then separated by centrifugation at 5,000 g (Sigma 42k, Sartorius, Germany) for 20 minutes at 4 oC. The supernatant was tested for extracellular antibacterial activity using disc diffusion susceptibility test. The pellet was washed twice ...
Functional Roles Of Lipids In membranes - IJS
... diacylglycerol, derived from PG, in thioether linkage. Figure is courtesy of C.R.H. Raetz. ...
... diacylglycerol, derived from PG, in thioether linkage. Figure is courtesy of C.R.H. Raetz. ...
Biofilm exopolysaccharides
... obtain sufficient EPS which is truly biofilm-derived for detailed study. The EPS present in biofilms almost certainly resemble closely the corresponding polymers synthesized by planktonic cells. This has been demonstrated by the use of antibodies prepared against EPS from planktonic cells and also b ...
... obtain sufficient EPS which is truly biofilm-derived for detailed study. The EPS present in biofilms almost certainly resemble closely the corresponding polymers synthesized by planktonic cells. This has been demonstrated by the use of antibodies prepared against EPS from planktonic cells and also b ...
Colloids and Surfaces B: Biointerfaces The role of nano
... on biomedical implants contain protein mixtures where a fraction of them are responsible for bacterial adhesion. By employing cationic polymer patches, the current study focuses on wellcontrolled electrostatically attractive regions that also might be found in an adsorbed protein layer. (While many ...
... on biomedical implants contain protein mixtures where a fraction of them are responsible for bacterial adhesion. By employing cationic polymer patches, the current study focuses on wellcontrolled electrostatically attractive regions that also might be found in an adsorbed protein layer. (While many ...
this PDF file
... lipids is much similar to those of archaea, which is composed of ether-linked fatty acids, these two kinds of lipids are proposed to originate from a possibly common ancestor followed by diverging into two different biochemical pathways. Another possibility about the origin of this kind of unique li ...
... lipids is much similar to those of archaea, which is composed of ether-linked fatty acids, these two kinds of lipids are proposed to originate from a possibly common ancestor followed by diverging into two different biochemical pathways. Another possibility about the origin of this kind of unique li ...
Phagocytosis by pig alveolar macrophages of
... only cytotoxic activity (Apxlll), also caused gross damage to the macrophages. A mutant (HK 361 h) which produces neither ApxlI nor Apxlll in i t s culture supernatant allowed longer survival of the macrophages than did either the parent strain or mutant e when incubated w i t h normal pig serum. Pr ...
... only cytotoxic activity (Apxlll), also caused gross damage to the macrophages. A mutant (HK 361 h) which produces neither ApxlI nor Apxlll in i t s culture supernatant allowed longer survival of the macrophages than did either the parent strain or mutant e when incubated w i t h normal pig serum. Pr ...
Characterization of mercury bioremediation by transgenic bacteria
... Kit (Qiagen, Germantown, MD) from 1 ml of transformed and untransformed E. coli JM109 grown in Luria Bertani (LB) broth for 16 hours at 37°C and 300 rpm agitation. The RNA samples were treated with DNAse I at a concentration of 100 μg/mL to remove any residual DNA, normalized, and then reverse trans ...
... Kit (Qiagen, Germantown, MD) from 1 ml of transformed and untransformed E. coli JM109 grown in Luria Bertani (LB) broth for 16 hours at 37°C and 300 rpm agitation. The RNA samples were treated with DNAse I at a concentration of 100 μg/mL to remove any residual DNA, normalized, and then reverse trans ...
Induction of type-IIA secretory phospholipase A2 in animal models of
... Type-IIA secretory phospholipase A2 activity and surfactant phospholipid quantitation. Alveolar instillation of LPS or live bacteria led to a similar level of neutrophil influx into alveolar spaces and decreased static compliance. During both injuries, sPLA2-IIA messenger ribonucleic acid (mRNA) was ...
... Type-IIA secretory phospholipase A2 activity and surfactant phospholipid quantitation. Alveolar instillation of LPS or live bacteria led to a similar level of neutrophil influx into alveolar spaces and decreased static compliance. During both injuries, sPLA2-IIA messenger ribonucleic acid (mRNA) was ...
Influence of organic matter quality in the
... attached and free-living bacterial communities, there are only a few data comparing their kinetics of polymer hydrolysis (Agis et al., 1998). A large fraction of the particulate matter present in marine systems consists of macroscopic aggregates also known as ‘marine snow’ (Alldredge and Silver, 198 ...
... attached and free-living bacterial communities, there are only a few data comparing their kinetics of polymer hydrolysis (Agis et al., 1998). A large fraction of the particulate matter present in marine systems consists of macroscopic aggregates also known as ‘marine snow’ (Alldredge and Silver, 198 ...
Calcite precipitation induced by bacteria and bacterially produced
... each group, except for group F. The concentration of Ca2+ in group F was almost stable around 380 mg l–1 after 3 h. In general, the concentration of Ca2+ in the test groups in the presence of bacteria (groups A and B) decreased more rapidly than that in the absence of bacteria (groups C and D). The ...
... each group, except for group F. The concentration of Ca2+ in group F was almost stable around 380 mg l–1 after 3 h. In general, the concentration of Ca2+ in the test groups in the presence of bacteria (groups A and B) decreased more rapidly than that in the absence of bacteria (groups C and D). The ...
Planctomycetes – a phylum of emerging interest for
... Ultrastructure of eukaryote nuclear envelope and pore complexes also does not favour endosymbiotic origins for nuclei (Poole & Penny, 2001). The various stages needed for endogenous membrane enfolding of the genome may be represented ‘frozen’ in different planctomycete genera. Planctomycetes form a ...
... Ultrastructure of eukaryote nuclear envelope and pore complexes also does not favour endosymbiotic origins for nuclei (Poole & Penny, 2001). The various stages needed for endogenous membrane enfolding of the genome may be represented ‘frozen’ in different planctomycete genera. Planctomycetes form a ...
Journal of Phycology
... associated with internal organelles, such the endoplasmic reticulum (ER) and coccolith-producing compartment, and suggested these PULCA components are membrane-unbound lipids. Additional PULCA were also found in the Golgi and plasma membranes and in chloroplast thylakoids. But unlike the ER and cocc ...
... associated with internal organelles, such the endoplasmic reticulum (ER) and coccolith-producing compartment, and suggested these PULCA components are membrane-unbound lipids. Additional PULCA were also found in the Golgi and plasma membranes and in chloroplast thylakoids. But unlike the ER and cocc ...
cIAP-1 Controls Innate Immunity to C. pneumoniae Pulmonary
... function of IAPs in vivo is still unknown. XIAP is probably the only potent direct inhibitor of caspase-3, 7 or 9 [19], but an apoptosis related phenotype has not yet been identified in XIAP knockout mice [20]. A recent report suggests that IAPs are multifunctional signaling devices that influence i ...
... function of IAPs in vivo is still unknown. XIAP is probably the only potent direct inhibitor of caspase-3, 7 or 9 [19], but an apoptosis related phenotype has not yet been identified in XIAP knockout mice [20]. A recent report suggests that IAPs are multifunctional signaling devices that influence i ...
Prokaryotes - Hardin County Schools
... Bacteria are surrounded by a cell wall consisting of peptidoglycan. This complex molecule consists of sugars and amino acids. The cell wall is important for protecting bacteria. The cell wall is so important that some antibiotics, such as penicillin, kill bacteria by preventing the cell wall from fo ...
... Bacteria are surrounded by a cell wall consisting of peptidoglycan. This complex molecule consists of sugars and amino acids. The cell wall is important for protecting bacteria. The cell wall is so important that some antibiotics, such as penicillin, kill bacteria by preventing the cell wall from fo ...
The O-antigen mediates differential survival of
... Yuste et al., 2002). Here, the fitness of a variant allele is inversely proportional to its frequency, preventing both the fixation of common alleles and the loss of rare ones. Yet, diverse O-antigens are also found in species not associated with eukaryotic hosts (Wildschutte et al., 2010). Predator ...
... Yuste et al., 2002). Here, the fitness of a variant allele is inversely proportional to its frequency, preventing both the fixation of common alleles and the loss of rare ones. Yet, diverse O-antigens are also found in species not associated with eukaryotic hosts (Wildschutte et al., 2010). Predator ...
1 An amoeba phagocytosis model reveals a novel developmental
... NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Insect Physiology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this documen ...
... NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Insect Physiology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this documen ...
Mycobacterium tuberculosis adhesins: potential
... two major classes of protein adhesins have been defined to date: the fimbrial and the non-fimbrial adhesins (Gerlach & Hensel, 2007). Fimbriae (hairs) or pili (threads) are the most common form of bacterial adhesins. They are elongated, multi-subunit protein structures that are able to interact with ...
... two major classes of protein adhesins have been defined to date: the fimbrial and the non-fimbrial adhesins (Gerlach & Hensel, 2007). Fimbriae (hairs) or pili (threads) are the most common form of bacterial adhesins. They are elongated, multi-subunit protein structures that are able to interact with ...
Differential function of Listeria monocytogenes listeriolysin O and
... (Camilli et al., 1991; 1993; Vazquez-Boland et al., 1992; Smith et al., 1995). At two distinct stages during the infection process bacteria are surrounded by vacuolar membranes. Upon entry, bacteria are trapped within single-membrane vacuoles. Failure to escape from these primary vacuoles results in ...
... (Camilli et al., 1991; 1993; Vazquez-Boland et al., 1992; Smith et al., 1995). At two distinct stages during the infection process bacteria are surrounded by vacuolar membranes. Upon entry, bacteria are trapped within single-membrane vacuoles. Failure to escape from these primary vacuoles results in ...
Extracellular electron transfer from aerobic bacteria to Au loaded
... the Au@TiO2−NT surface, similar results as the LSPRpowered photocurrent are obtained in dark environment (solid blue line in Figure 4a). The results indicate that live S. aureus work similarly to the illumination in LSPR-powered photocatalysis and supply hot electrons for the bacterial current. The ...
... the Au@TiO2−NT surface, similar results as the LSPRpowered photocurrent are obtained in dark environment (solid blue line in Figure 4a). The results indicate that live S. aureus work similarly to the illumination in LSPR-powered photocatalysis and supply hot electrons for the bacterial current. The ...
A New Laboratory Cultivation of Paramecium bursaria Using Non
... light (1.02 W/m2) and three were incubated in the dark. The watch glasses were placed in Petri dishes, lined with wet filter papers in order to minimize the evaporation of water. The experimental cultures prepared in this way were incubated for 21 d. Cultures containing bacteria strains isolated from ...
... light (1.02 W/m2) and three were incubated in the dark. The watch glasses were placed in Petri dishes, lined with wet filter papers in order to minimize the evaporation of water. The experimental cultures prepared in this way were incubated for 21 d. Cultures containing bacteria strains isolated from ...
Defect in neutrophil killing and increased
... recognition proteins (PGRPs) are a novel family of innate immunity pattern recognition molecules that are highly conserved from insects to mammals.4-6 The first member of the PGRP family, now designated PGRP-S (for 19 kDa PGRP-short),5 was first described in 1996 as a protein present in hemolymph an ...
... recognition proteins (PGRPs) are a novel family of innate immunity pattern recognition molecules that are highly conserved from insects to mammals.4-6 The first member of the PGRP family, now designated PGRP-S (for 19 kDa PGRP-short),5 was first described in 1996 as a protein present in hemolymph an ...
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.