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pathogenic bacteria isolated from tiger prawn
pathogenic bacteria isolated from tiger prawn

... pathogenic bacteria are perhaps that most important pathogens in shrimp culture ponds causing servere mortalities and financial losses. There is also a need to develop the shrimp culture practice and control the pathogenic microbes is very essential. ...
1051-2734-1-SP
1051-2734-1-SP

... taxonomically diverse group of microorganisms, which can convert fermentable carbohydrates into lactic acid. The most typical LAB members are Gram-positive, catalase-negative organisms of the low C+G branch, belonging to the genera Lactobacillus, Lactococcus, Pediococcus and Leuconostoc (Carr et al. ...
Fusobacterium Nucleatum
Fusobacterium Nucleatum

... • Periodontal disease is a variety of inflammatory lesions affecting the periodontum • The plaque-associated lesion is the predominant in the general population • Plaque from patients w/periodontal disease has been isolated; over 400 different types of bacteria present • Fusobacterium nucleatum has ...
LECTURE # 1
LECTURE # 1

... Figure 1.16 Modern binocular (two eyepieces) microscope. Note the mechanical stage, which facilitates the movement of slides. Both objectives and oculars are designed for different magnifications. The objectives usually are mounted in a rotating wheel known as a turret or revolving nosepiece; any o ...
Bacteria between protists and phages: from
Bacteria between protists and phages: from

... remarkably little damage from microbial infections. They probably owe this resistance to two principles: antimicrobial chemicals that they elaborate, and amoebocytes that patrol the sponge body for invading microbes apparently since Precambrian times (Li et al., 1998). Amoebocytes resemble amoeba pr ...
Acid Lactic Bacteria from Fermented Local Feed and it`s
Acid Lactic Bacteria from Fermented Local Feed and it`s

... greater interest in the application of natural inhibitory The isolated strains have been inoculated on the MRS substances as feed preservatives, which could replace or broth and incubated at 5°C, 15°C, 30°C, 37°C, 45°C, 48°C reduce the use of chemical additives [2]. The antimicrobial and 60°C. The a ...
Sagittula stellata gen. nov., sp. nov., a Lignin
Sagittula stellata gen. nov., sp. nov., a Lignin

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Emerging Frontiers in Geomicrobiology
Emerging Frontiers in Geomicrobiology

... the mechanisms of environmental geomicrobiological or for seeking direct evidence of early life and metabolisms. Furthermore, microbial metal cycling, electron transfer, processes provide insight into complex microbial function and biomineralization processes have now been recognized in engineered o ...
Transformations Lab Report (#2)
Transformations Lab Report (#2)

... by another bacterium in a process called conjugation. It can be inserted by a virus through transduction. Or, it can be eased into a bacterium by using chemical or electrical means, a method called transformation. The procedure that is used most often, especially in laboratories, is transformation ( ...
Final Platform Presentation
Final Platform Presentation

... • If an actual experiment tested this, will there actually be no or almost no bacteria on an item after being treated with Lysol? • Other similar studies had been performed and results differed. • The results differed due to substrate and disinfectant used. • This prompted my curiosity of Lysol and ...
GemmatimonadetesFinal
GemmatimonadetesFinal

... Gemmatimonadetes is a new phylum, whose first cultivable member was discovered in 2003, Gemmatimonas Aurantiaca, which the phylum is also named after. The name is derived from Latin gemmatus meaning “provided with buds” and Monas meaning “one unit”, thus the name Gemmatimonas, a budding unit. They ...
Scientific Method Applied
Scientific Method Applied

... culture dishes. He noticed a mold called Penicillium also growing in some of the dishes. A clear area existed around the mold. All the bacteria that had grown in this clear area had died. In the culture dishes without the mold, no clear areas were present. Fleming hypothesized that the mold must be ...
cheese, salame, microbes - American Cheese Society
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... Microbial diversity of salame is much lower Salame ...
Prokaryotic Diversity: The Bacteria
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... • Two classes of methanotrophs are known, each having a number of structural and biochemical properties in common. Methanotrophs reside in water and soil and can also exist as symbionts of marine shellfish. • Two classes of methanotrophs are known, each having a number of structural and biochemical ...
V. fischeri is a rod-shaped, Gram
V. fischeri is a rod-shaped, Gram

... V. fischeri is a rod-shaped, Gram-negative bacterium that bioluminesces because of a mechanism called quorum sensing, which is dependent on its population. Quorum sensing bacteria release signal molecules called autoinducers, and when there are enough of them in a bacterial community, receptor prote ...
Cooperative organization of bacterial colonies: from genotype to
Cooperative organization of bacterial colonies: from genotype to

... bacterial cells. This feature reflects the local cooperation in the behavior of the bacteria (the analog of a surface tension in nonliving systems). Note that, to a first approximation, [N.sub.c] represents the agar concentration, since more "collisions" are needed to push the envelope on a harder s ...
Doctrine about Antibiotics
Doctrine about Antibiotics

... agents such as viruses, which do not respond to antibiotics. All therapy is a calculated risk in which the probable benefits must outweigh the drawbacks, and antibiotics are no exception to this rule. To use them when they are not indicated and when the "probable benefits" are nonexistent means expo ...
Mycobacterium tuberculosis
Mycobacterium tuberculosis

... In addition to T helper cells, infected cells are also surrounded by fibroblast that deposit fibrous tissue that prevent spreading of the bacteria in lungs. This kind of immune response is known as Granulomatous inflammation that leads for the formation of a kind of shield (( or quarantine)) so as t ...
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... nature of the microscopic forms of life, of course their reproduction, physiology, participation in the processes of nature, ecological relationships with other living things and their significances in science and industry. ...
Chapter 4 VIRUS, BACTERIA AND CYANOBACTERIA
Chapter 4 VIRUS, BACTERIA AND CYANOBACTERIA

... bodies and convert various organic compounds into simple forms such as nitrates, sulphates, phosphates etc for utilization by green plants again. Nitrifying bacteria convert the proteins of these dead bodies into nitrates. Then these nitrates are absorbed and utilized by the green plants. Soil bacte ...
Staphylococcus aureus
Staphylococcus aureus

... A test of coagulation of human or rabbit plasma in the presence of anticoagulant (citrate or heparin). Coagulase-negative staphylococci (CNS) used to be thought as nonpathogenic, however, they have become a major source of hospitalacquired infections: Staphylococcus epidermidis Staphylococcus saprop ...
Bacteria Bafflement
Bacteria Bafflement

... Bacteria reproduce asexually by dividing the cell in half; each bacterium splits itself to make two new bacteria (the original bacterium cease to exist). Bacteria reproduce every 20 minutes if they are in goo, optimum conditions such as warm temperature, moisture and sufficient food. When one bacter ...
Document
Document

... The type III secretion system inserts the tir (translocated intimin receptor) into target cells, and intimate attachment of the non-fimbrial adhesion called intimin to tir occurs. Host cell kinases activated to phosphorylate tir which then causes a reorganization of host cytoskeletal elements result ...
full text pdf
full text pdf

... scaffolds often come from natural antibiotics that are produced by soil bacteria (tetracycline, streptomycin) or fungus (penicillin). Bacteria make antibiotics for two distinctly different reasons. Firstly, at low concentration antibiotics act as signaling molecules that regulate the homeostasis of ...
Page 45 - Educast
Page 45 - Educast

... and convert various organic compounds into simple forms such as nitrates, sulphates, phosphates etc for utilization by green plants again. Nitrifying bacteria convert the proteins of these dead bodies into nitrates. Then these nitrates are absorbed and utilized by the green plants. Soil bacteria inc ...
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Biofilm



A biofilm is any group of microorganisms in which cells stick to each other on a surface. These adherent cells are frequently embedded within a self-produced matrix of extracellular polymeric substance (EPS). Biofilm extracellular polymeric substance, which is also referred to as slime (although not everything described as slime is a biofilm), is a polymeric conglomeration generally composed of extracellular DNA, proteins, and polysaccharides. Biofilms may form on living or non-living surfaces and can be prevalent in natural, industrial and hospital settings. The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single-cells that may float or swim in a liquid medium.Microbes form a biofilm in response to many factors, which may include cellular recognition of specific or non-specific attachment sites on a surface, nutritional cues, or in some cases, by exposure of planktonic cells to sub-inhibitory concentrations of antibiotics. When a cell switches to the biofilm mode of growth, it undergoes a phenotypic shift in behavior in which large suites of genes are differentially regulated.
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