5 Lecture (Bacteria Ch27)
... Name for a rod-shaped bacterium. Name for a comma-shaped bacterium. Name for a spiral shaped bacterium with many bends. • Name for a spiral shaped bacterium with only a few bends. • Name for a cluster of round bacteria. ...
... Name for a rod-shaped bacterium. Name for a comma-shaped bacterium. Name for a spiral shaped bacterium with many bends. • Name for a spiral shaped bacterium with only a few bends. • Name for a cluster of round bacteria. ...
- Wiley Online Library
... compounds. In one study, two phenolic inducers, acetosyringone (AS) and a-hydroxyacetosyringone, were released in higher amounts from tobacco leaf discs than from unwounded leaves (Stachel et al., 1985). However, these compounds were first isolated from cultured plant cells or roots, neither of whic ...
... compounds. In one study, two phenolic inducers, acetosyringone (AS) and a-hydroxyacetosyringone, were released in higher amounts from tobacco leaf discs than from unwounded leaves (Stachel et al., 1985). However, these compounds were first isolated from cultured plant cells or roots, neither of whic ...
The Development of Cooperative Associations Between Animals
... host's developmental program the differThe principal modes of transmission entiation of cells with surface properties inhave been termed transovarian (or vertical) volved in recognition and adherence of the and cyclic (or horizontal) (Douglas, 1994). appropriate environmental bacteria. The In transo ...
... host's developmental program the differThe principal modes of transmission entiation of cells with surface properties inhave been termed transovarian (or vertical) volved in recognition and adherence of the and cyclic (or horizontal) (Douglas, 1994). appropriate environmental bacteria. The In transo ...
silicone rubber in a parallel plate flow chamber in the absence and
... Prior to each experiment, all tubes and the flow chamber were filled with either PBS or PBS with 2% nutrient broth added, taking care to ensure that all air bubbles were removed from the system. Once the system was filled, and prior to the addition of the bacterial suspension, the fluid was allowed ...
... Prior to each experiment, all tubes and the flow chamber were filled with either PBS or PBS with 2% nutrient broth added, taking care to ensure that all air bubbles were removed from the system. Once the system was filled, and prior to the addition of the bacterial suspension, the fluid was allowed ...
silicone rubber in a parallel plate flow chamber in the
... Prior to each experiment, all tubes and the flow chamber were filled with either PBS or PBS with 2% nutrient broth added, taking care to ensure that all air bubbles were removed from the system. Once the system was filled, and prior to the addition of the bacterial suspension, the fluid was allowed ...
... Prior to each experiment, all tubes and the flow chamber were filled with either PBS or PBS with 2% nutrient broth added, taking care to ensure that all air bubbles were removed from the system. Once the system was filled, and prior to the addition of the bacterial suspension, the fluid was allowed ...
uracil nucleotides protect cardiomyocytes from hypoxic stress
... P2X receptors are ligand-gated intrinsic ion channels, and P2Y receptors are G protein– coupled receptors. Methods: Cardiomyocytes grown in culture were treated with UTP (350 uM) before exposing them to hypoxic conditions. Inhibitors of signaling pathway or P2 receptor antagonists, were given before ...
... P2X receptors are ligand-gated intrinsic ion channels, and P2Y receptors are G protein– coupled receptors. Methods: Cardiomyocytes grown in culture were treated with UTP (350 uM) before exposing them to hypoxic conditions. Inhibitors of signaling pathway or P2 receptor antagonists, were given before ...
chapter2 467..477 - Caister Academic Press
... Bdellovibrio strains are ubiquitous in most environments, ranging from marine to plant associated to the purely terrestrial (Cotter, 1992; Jurkevitch and Ramati, 2000; Ruby, 1992), while alternating between free living and intracellular growth phases. The definition of the species name ‘‘Bdellovibri ...
... Bdellovibrio strains are ubiquitous in most environments, ranging from marine to plant associated to the purely terrestrial (Cotter, 1992; Jurkevitch and Ramati, 2000; Ruby, 1992), while alternating between free living and intracellular growth phases. The definition of the species name ‘‘Bdellovibri ...
Gram Stain
... Gram Stain The Gram stain is the most common differential stain used in microbiology. Differential stains use more than one dye. The unique cellular components of the bacteria will determine how they will react to the different dyes. The Gram stain procedure has been basically unchanged since it was ...
... Gram Stain The Gram stain is the most common differential stain used in microbiology. Differential stains use more than one dye. The unique cellular components of the bacteria will determine how they will react to the different dyes. The Gram stain procedure has been basically unchanged since it was ...
Prey Food Quality Affects Flagellate Ingestion Rates | SpringerLink
... glass-fiber filters (Whatman GF/F) for element analysis. Two sets of triplicate filters were prepared for each culture condition; one set for carbon (C) and nitrogen (N) analysis and one set for particulate phosphorus (P) analysis. The C and N content of cells was determined using a CHN analyzer (Pe ...
... glass-fiber filters (Whatman GF/F) for element analysis. Two sets of triplicate filters were prepared for each culture condition; one set for carbon (C) and nitrogen (N) analysis and one set for particulate phosphorus (P) analysis. The C and N content of cells was determined using a CHN analyzer (Pe ...
Mechanisms of Hormone Action: Peptide Hormones
... •Wrana and Attisano (2000) The Smad pathway. Cyt Growth Factor Rev 11:5. •Moon et al (2002) The promise and perils of Wnt signaling through b-catenin. Science 296:1644. •Locksley et al (2001) The TNF receptor superfamilies: integrating mammalian biology. Cell 104:487. •Tamura (2001) The regulation a ...
... •Wrana and Attisano (2000) The Smad pathway. Cyt Growth Factor Rev 11:5. •Moon et al (2002) The promise and perils of Wnt signaling through b-catenin. Science 296:1644. •Locksley et al (2001) The TNF receptor superfamilies: integrating mammalian biology. Cell 104:487. •Tamura (2001) The regulation a ...
Electron Microscope Observations of Brucella abortus
... therefore that the known differences between slant-grown and cell-grown brucellas, if they involve changes in surface structures, are associated with modifications which are not detectable with the electron microscope. The changes in serum sensitivity in brucellas may be more closely related to diff ...
... therefore that the known differences between slant-grown and cell-grown brucellas, if they involve changes in surface structures, are associated with modifications which are not detectable with the electron microscope. The changes in serum sensitivity in brucellas may be more closely related to diff ...
viability. Bacterial plasmolysis as a physical
... Traditional methods for determining cellular viability rely upon the culture of organisms on agar surfaces, a method which may (i) bias results for organisms capable of growing on a specific substrate under a defined set of conditions and (ii) not always be sensitive to the condition of individual b ...
... Traditional methods for determining cellular viability rely upon the culture of organisms on agar surfaces, a method which may (i) bias results for organisms capable of growing on a specific substrate under a defined set of conditions and (ii) not always be sensitive to the condition of individual b ...
Transforming Growth Factor-Яs and Vascular Disorders
... ALK-1 responses, suggesting that ALK-5 is essential for efficient ALK-1 activation and recruitment into a TGF- receptor complex.10 ALK-1 not only induces responses opposite to ALK-5 but also antagonizes ALK-5/Smad3 signaling. This dual receptor system in endothelial cells provides an intricate mech ...
... ALK-1 responses, suggesting that ALK-5 is essential for efficient ALK-1 activation and recruitment into a TGF- receptor complex.10 ALK-1 not only induces responses opposite to ALK-5 but also antagonizes ALK-5/Smad3 signaling. This dual receptor system in endothelial cells provides an intricate mech ...
Bacterial second messengers, cGMP and cdiGMP, in a quest for
... In the last decade, attention of many bacteriologists has been focused on cyclic dinucleotide second messengers, that is, c-di-GMP and its recently discovered cousins, cyclic dimeric AMP (c-di-AMP) and the cyclic AMP-GMP hybrid (see Römling et al, 2013 for a recent review). Cyclic-di-GMP, found in ...
... In the last decade, attention of many bacteriologists has been focused on cyclic dinucleotide second messengers, that is, c-di-GMP and its recently discovered cousins, cyclic dimeric AMP (c-di-AMP) and the cyclic AMP-GMP hybrid (see Römling et al, 2013 for a recent review). Cyclic-di-GMP, found in ...
Sentinel cells, symbiotic bacteria and toxin resistance in the social
... These specialized cells are called sentinel cells, and can sequester harmful toxins and pathogens in large vesicles within the sentinel cell. After collecting toxins and/or pathogens, these cells are left behind in the discarded slug sheath as the slugs move. As sentinel cells are sloughed off in th ...
... These specialized cells are called sentinel cells, and can sequester harmful toxins and pathogens in large vesicles within the sentinel cell. After collecting toxins and/or pathogens, these cells are left behind in the discarded slug sheath as the slugs move. As sentinel cells are sloughed off in th ...
Lecture 03 – Prokaryotes 3 Domains Comparison (Pro vs. Eu)
... • Tubules composed of pilin • Longer than fimbriae but shorter than flagella • Typically one or two per cell • (conjugation) ...
... • Tubules composed of pilin • Longer than fimbriae but shorter than flagella • Typically one or two per cell • (conjugation) ...
a bacterial symbiont infecting the nucleus of amoebae
... Figure 1 The intracellular niche of ‘Candidatus Nucleicultrix amoebiphila’. Transmission electron micrographs showing different infection stages of Hartmannella sp. (a–d) and A. castellanii (e–h). (a) Early infection stage in Hartmannella with three Nucleicultrix particles present in the nucleus, ba ...
... Figure 1 The intracellular niche of ‘Candidatus Nucleicultrix amoebiphila’. Transmission electron micrographs showing different infection stages of Hartmannella sp. (a–d) and A. castellanii (e–h). (a) Early infection stage in Hartmannella with three Nucleicultrix particles present in the nucleus, ba ...
Origin of diderm (Gram-negative) bacteria
... or two membranes (diderms). It is important to understand how these and other variations that are observed in the cell envelopes of prokaryotic organisms have originated. In 2009, James Lake proposed that cells with two membranes (primarily Gramnegative bacteria) originated from an ancient endosymbi ...
... or two membranes (diderms). It is important to understand how these and other variations that are observed in the cell envelopes of prokaryotic organisms have originated. In 2009, James Lake proposed that cells with two membranes (primarily Gramnegative bacteria) originated from an ancient endosymbi ...
Bacteriophage
... called a "burst". Burst sizes may vary, but for the most common phages are around 100 to 200 phages released per host cell infected. When a burst occurs in a lawn of host bacterial cells, it creates a clear zone called a plaque. This is due to the lysis of host cells by phages in this clearing. Phag ...
... called a "burst". Burst sizes may vary, but for the most common phages are around 100 to 200 phages released per host cell infected. When a burst occurs in a lawn of host bacterial cells, it creates a clear zone called a plaque. This is due to the lysis of host cells by phages in this clearing. Phag ...
Binding Sites for Bacterial Flagella at the Surface of the Soil Amoeba
... On: Sat, 17 Jun 2017 18:33:26 ...
... On: Sat, 17 Jun 2017 18:33:26 ...
Chapter 17 PowerPoint
... The Diversity of Domain Archaea Archaea are essential in geochemical cycles on land and in water. Scientists are only beginning to organize Domain Archaea ...
... The Diversity of Domain Archaea Archaea are essential in geochemical cycles on land and in water. Scientists are only beginning to organize Domain Archaea ...
Protista(amoeba)
... 4. Absorption occurs by diffusion of the digested food from vacuole into cytoplasm. 5. Egestion of indigested materials from food vacuole takes place at cell surface where it is left behind as amoeba flows away from it. ...
... 4. Absorption occurs by diffusion of the digested food from vacuole into cytoplasm. 5. Egestion of indigested materials from food vacuole takes place at cell surface where it is left behind as amoeba flows away from it. ...
BioWire_Progress_Report_Week_One_Rev_1
... [Components will be ordered Monday] Replicate Weiss sender cell, adding GFP as a reporter Manually add aTc to the system in varying concentrations Control: Add water instead of aTc Expected Result: GFP is expressed, but not in control plates. ...
... [Components will be ordered Monday] Replicate Weiss sender cell, adding GFP as a reporter Manually add aTc to the system in varying concentrations Control: Add water instead of aTc Expected Result: GFP is expressed, but not in control plates. ...
Patterned Protein Microarrays for Bacterial Detection
... silicon [22] to create patterns of bacteria. A diffraction-based method was used for detecting the presence of bacteria in both studies. Neither study focused on the crossreaction between their antibody microarrays and non-specific bacteria. These studies would also have benefited from high-resoluti ...
... silicon [22] to create patterns of bacteria. A diffraction-based method was used for detecting the presence of bacteria in both studies. Neither study focused on the crossreaction between their antibody microarrays and non-specific bacteria. These studies would also have benefited from high-resoluti ...
Chemotaxis
Chemotaxis (from chemo- + taxis) is the movement of an organism in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (e.g., glucose) by swimming toward the highest concentration of food molecules, or to flee from poisons (e.g., phenol). In multicellular organisms, chemotaxis is critical to early development (e.g., movement of sperm towards the egg during fertilization) and subsequent phases of development (e.g., migration of neurons or lymphocytes) as well as in normal function. In addition, it has been recognized that mechanisms that allow chemotaxis in animals can be subverted during cancer metastasis.Positive chemotaxis occurs if the movement is toward a higher concentration of the chemical in question; negative chemotaxis if the movement is in the opposite direction. Chemically prompted kinesis (randomly directed or nondirectional) can be called chemokinesis.