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Gram negative stain Stock Photos and Images
RF2HPR1R3–Gram negative bacteria do not retain the crystal violet stain. Gram positive bacteria give a positive result in the Gram stain test. comparison
RF2RGM9JR–Gram stain test. glass Petri dish with culture Gram-negative bacteria Escherichia coli after used of crystal violet stain. Close-up of Gram-positive
RFHX3208–Gram-negative bacterial cell wall, artwork. The horizontal layers include both an external and an internal membrane, both containing transmembrane proteins (green, yellow and purple). The membranes are separated by a thin peptidoglycan layer. The outer surface of the external membrane is often a lipopolysaccharide layer with lipids (purple) in the membrane, and long saccharide side chains (red) extending out. This is termed a Gram-negative cell wall because it does not retain the Gram stain that helps identify microbial life.
RF2RRG36R–Gram stain test. A glass Petri dish with pathogen bacterial culture before and after use Crystal violet. Bacteria stained with gentian violet. Gram-po
RF2RDWAG6–Types of bacterial cell wall. Gram-negative bacteria and Gram-negative bacteria. comparison, structure, and composition. Vector illustration
RF2JTPACG–Diagram of LPS strcuture - schematic illustration of Lipopolysaccharide molecule of gram negative bacteria cell membrane.
RF2DH78AJ–cell wall structure of Gram-negative Bacteria for example Helicobacter. Vector diagram for educational, medical, biological and science use
RMK1F3JH–Brucella melitensis Gram-stain. Brucella melitensis is a Gram-negative staining coccobacillus, and is the cause of the zoonotic disease, Brucellosis, an illness found in animals, but able to be transmitted to humans. Image courtesy CDC/Dr. W.A. Clark, 1977.
RF2F4J27P–Close up gram stain test showing bacteria cells of Tuberculosis bacteria gram positive on sputum isolated on white background and noise .Saved with c
RF2KFJ28G–3D image of Congo red skeletal formula - molecular chemical structure of red azo dye isolated on white background
RMT697DA–Gram-stain photomicrograph of a urethral exudate, revealing both intracellular and extracellular gram-negative diplococci, Neisseria gonorrhoeae, 1974. Image courtesy Centers for Disease Control and Prevention (CDC) / Dr Norman Jacobs. ()
RFMNDGAR–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Skeletal formula.
RF2M1MCCN–3D image of Phenosafranin skeletal formula - molecular chemical structure of fluorochrome pinasafrole isolated on white background
RFMNGPWC–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Skeletal formula.
RM2AWW2XW–Essentials of bacteriology; being a concise and systematic introduction to the study of bacteria and allied microörganisms . r to the disease. Morphology.—^Very minute bacilli with rounded ends (Fig- 75)- Cultures.—On potato-blood-agar, after twenty-four hours,slight growth, sticky, grayish; subcultures made on blood-serum and veal-agar grow readily. Staining.—Gram-negative, stain lightly with ordinary dyes. Pathogenesis.—By inhalation inoculation young rabbitswere made to develop a spasmodic cough, and the bacilluswas recovered from the trachea and from bronchi in pure cul-tures. In the sput
RF2HFHNAC–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Skeletal formula.
RMAJBXXM–This image depicts a Gram stain of a urethral exudate that is diagnostic for gonococcal urethritis.
RFJ3KDJF–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Atoms are represented as spheres with conventional color coding: hydrogen (w
RFHX320B–Gram-negative bacterial cell wall, artwork. The horizontal layers include both an external and an internal membrane, both containing transmembrane proteins (green, yellow and purple). The membranes are separated by a thin peptidoglycan layer. The outer surface of the external membrane is often a lipopolysaccharide layer with lipids (purple) in the membrane, and long saccharide side chains (red) extending out. This is termed a Gram-negative cell wall because it does not retain the Gram stain that helps identify microbial life.
RMDJ0WEK–Methyl violet stained cells gram stain for investigation into microbiology bacteria cells under microscope in laboratory
RF2JTPAB7–Diagram showing gram staining microbiology lab technique steps - microbiology laboratory using Crystal violet and Safranin
RF2DH784T–cell wall structure of Gram-positive Bacteria for example Staphylococcus. Vector diagram for educational, medical, biological and science use
RMKR11MG–Magnified 1000X, this micrograph depicts Bacteroides fragilis subsp, 1974. fragilis bacteria that had been grown in Schaedler?s broth, and processed using the Gram-stain method. Bacteroides fragilis, a Gram-negative rod, constitutes 1-2% of the normal colonic bacterial microflora in humans. It is associated with extraintestinal infections such as abscesses and soft tissue infections, as well as diarrheal diseases. Image courtesy CDC/Don Stalons.
RMMA986Y–Neisseria gonorrhoeae bacteria revealed in the gram-stain image of a urethral discharge specimen, 1975. Image courtesy Centers for Disease Control (CDC) / Joe Miller. ()
RMKW1078–This illustration depicts a photomicrograph of Salmonella typhi bacteria using a Gram-stain technique. Salmonella typhi, also known as Eberthella typhi and Bacillus typhosus, is the cause of Typhoid fever. This life threatening disease is characterized by fever, headache, malaise, anorexia, splenomegaly, and a relative bradycardia. Image courtesy CDC, 1979.
RM2AM0P8D–Diagnostic methods, chemical, bacteriological and microscopical, a text-book for students and practitioners . it is usually asecondary invader. These bacilli grow readily on artificial media, are en-capsulated and stain easily with the ordinary dyes but are Gram-negative. (J). The Influenza Bacillus. This bacillus, known as Pfeiffers bacillus, is found in the bronchialsputum, especially in the pulmonary type of this disease.^ The most char-acteristic sputum is greenish-yellow in color with lumps of pus in num-mular form. The organisms are found in such sputum as small, shortbacilli measuring 2
RMBPG558–This photomicrograph shows a Gram-stain of a urethral exudate that is diagnostic of gonococcal urethritis.
RFJ3KDJG–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Atoms are represented as spheres with conventional color coding: hydrogen (w
RFHX3207–Gram-negative bacterial cell wall, illustration. The horizontal layers include both an external and an internal membrane (blue), both containing transmembrane proteins (green, yellow and purple). The membranes are separated by a thin peptidoglycan layer (purple rods). The outer surface of the external membrane is often a lipopolysaccharide layer with lipids (purple) in the membrane, and long saccharide side chains (red) extending out. This is termed a Gram-negative cell wall because it does not retain the Gram stain that helps identify microbial life.
RMDJ0WB2–Methyl violet stained cells gram stain for investigation into microbiology bacteria cells under microscope in laboratory
RFHN2KPF–Plague bacteria (Yersinia pestis),computer illustration.Y.pestis are Gram-negative bacteria from Enterobacteriaceae family.They have ovoid shape bipolar staining (stain more intensively at poles).This bacterium causes bubonic plague (the Black Death of Middle Ages).It is primarily flea-carried
RF2JTPABC–Diagram showing gram staining microbiology lab technique steps - microbiology laboratory using Crystal violet and Safranin
RFF7B3FY–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Stylized skeletal formula (chemical structure). Atoms
RMKW108C–A photomicrograph of Neisseria gonorrhoeae viewed using a Gram-stain technique. This photomicrograph of N. gonorrhoeae, a gonococcus, is from a urethral discharge specimen in a case of acute gonorrhoeae. Gonorrhea is second only to chlamydial infections in the number of cases reported to the CDC. Image courtesy CDC, 1979.
RM2AJJBJH–Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . ereby bringing out the polar bodies. The organismis Gram-negative, and c^uite difficult to stain in sections. Pathogenesis.—Nicolle was the first to inoculate the monkey success-fully; the ordinary laboratory animals are immune. The lesion pro-duced in man is rarely extragenital. Ullman has been able to collect64 extragenital chancroids. It develops as a red point advancing toa papule, and later pustule, which ruptures, exposing a deep, crater-likeulcer the edges of which are often un
RMKR12AH–This is a plate culture of Neisseria gonorrhoeae stained with oxidase reagent after 40 hours of incubation, 1972. N. gonorrhoeae, a gram-negative diplococcus, is the causative agent for Gonorrhea. Though these bacteria can infect the genital tract, mouth, and rectum they can become disseminated systemically throughout a person?s bloodstream. Image courtesy CDC.
RMBPG42X–This image depicts a Gram-stain of a urethral exudate that is diagnostic for gonococcal urethritis.
RFJ3KDJC–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Atoms are represented as spheres with conventional color coding: hydrogen (w
RMK1FAHN–This photomicrograph of a Leifson flagella stained specimen, revealed the presence of the flagellated aerobic, Gram-negative bacterium, Pseudomonas pseudoalcaligenes, each exhibiting a single polar flagellum, P pseudoalcaligenes has been isolated from swimming pool water Because of its ability to extract nitrogen as a nutrients from cyanide, this bacterium is sometimes used in the process of bioremediation, which involves the use of bacterial organisms to remove, or neutralize pollutants from sites of industrial contamination Image courtesy CDC/Dr William A Clark, 1976.
RFJ3KCTX–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Atoms are represented as spheres with conventional color coding: hydrogen (w
RMHT7J7R–Micrograph of istopathologic changes in a case of botryomycosis, caused by Pseudomonas aeruginosa, prepared with a Brown-Brenn stain, 1973. Image courtesy CDC/Dr. Lucille K. George.
RMDJ0WCK–Methyl violet stained cells gram stain for investigation into microbiology bacteria cells under microscope in laboratory
RMKTWRY0–Gram stain, urethral exudate, from male with urethritis, 1974. Note the lack of gram negative intracellular diplococci. Gram-stain technique, which employs crystal violet as the primary stain, imparts a purplish-brown color to bacteria that stain Gram-positive. Those that stain with the pink-red fuchsin counterstain are said to stain Gram-negative. Image courtesy CDC/Dr. Norman Jacobs.
RMM1HF6C–Microphotograph of a gram stain showing flaggellated bacteria, a strain of Vibrio cholerae, the cause of Asiatic cholera, 1979. Image courtesy CDC. ()
RMKR123D–This is a photomicrograph of Francisella tularensis bacteria using a methylene blue stain, 1972. The bacterium F. tularensis is considered to be a dangerous potential biological weapon because of its extreme infectivity, ease of dissemination, and substantial capacity to cause illness and death. Image courtesy CDC/Dr. P. B. Smith.
RMKR1RFR–Salmonella bacteria in tetrathionate enrichment broth stained using direct FA staining technique, 1969. Tetrathionate enrichment broth contains bile salts, thereby, inhibiting the growth of gram-positive organisms, while salmonella, an organism which possess the enzyme tetrathionate reductase, grows uninhibited. Image courtesy CDC/B. Thomason.
RMKR16PD–A photomicrograph of a liver smear, using a silver staining technique, taken from a patient with a fatal case of Leptospirosis, 1964. Humans become infected by swallowing water contaminated by infected animals or through skin contact, especially with mucosal surfaces, such as the eyes or nose, or with broken skin. The disease is not known to be spread from person to person. Image courtesy CDC/Dr. Martin Hicklin.
RMK1F44P–Francisella tularensis is Gram-negative in its staining morphology. Francisella tularensis is a poorly staining, very tiny gram-negative coccobacillus (0.2-0.7 {micro}m), seen mostly as single cells. Bipolar staining is not a distinctive feature. Image courtesy CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory, 2002.
RM2CEKY0K–. The bacteriology of the eye. i, either single or in pairs; sometimes in chains, the doubleform being not nearly so regular as in the case of the Diplobacilli. Thecapsules are also much more apparent, and in places—as, for instance, in 1V.6,where the preparation is overstained—they stain light red, and are surroundedby a clear space. In the middle of IV.5 the capsules are overstained, andresemble very large bacilli. (Preparation by Dr. Zur Nedden.) Fig. V.—Bacterium Coli (from a case of blennorrhcea neonatorum). Gram-negative bacilli of varying shape and size. Quite short, and also long,bacil
RFJ3KCTD–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Atoms are represented as spheres with conventional color coding: hydrogen (w
RMDJ0WBK–Methyl violet stained cells gram stain for investigation into microbiology bacteria cells under microscope in laboratory
RF2JTPAF2–Capsule staining microbiology lab technique steps diagram, using Crystal violet and copper sulfate vector illustration eps10
RMK1F468–Francisella tularensis is Gram-negative in its staining morphology. Francisella tularensis is a poorly staining, very tiny gram-negative coccobacillus (0.2-0.7 {micro}m), seen mostly as single cells. Bipolar staining is not a distinctive feature. Image courtesy CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory, 2002.
RMRE1D5T–. A manual of bacteriology. Bacteriology. PATHOGENIC BACTERIA. 339 Stain the cover-glass preparation which has been fixed in the flame in No. i one to three seconds; wash in water; stain in No. 2 three to five seconds; wash in water; mount as usual. The body of the bacillus is stained pale brown, with dark blue spots, especially at the ends (Fig. 87). In regard to the Gram scain, some strains retain the stain while others do not. Hamilton and Horton* found that of'18 cultures isolated by them, 11 were Gram negative, 7 were Gram positive.. Fig. 86.—Bacillus of diphtheria. (X looo.) The diphther
RFJ3KCT3–Crystal (gentian) violet molecule. Dye used in Gram staining of bacteria. Atoms are represented as spheres with conventional color coding: hydrogen (w
RMDJ0WE6–Methyl violet stained cells gram stain for investigation into microbiology bacteria cells under microscope in laboratory
RMK1F48N–Brucella spp. are gram-negative in their staining morphology. Brucella spp. are poorly staining, small gram-negative coccobacilli (0.5-0.7 x 0.6-1.5 {micro}m), and are seen mostly as single cells and appearing like ?fine sand?. Image courtesy CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory, 2002.
RMRR30PG–. The actinomycetes. Actinomycetales. N c —• / ^-^. 10 zo 20 HQ / Figure 39. Mycelium and sporulation of a mifromonospora (RoprodiiccMl from: Jcnspii, H. L. Proc. Linnean Soc. N.S.W. 55: 249, 1930). celiuin in a nomlried coiiditioii can also Ix' stained with dyes that readily enter the li- ing cell. There is little difference in the stain- ing properties of the -ai-ious types of niy- cehum and the aerial spoi-es. I'ractically all actinomycetes are gram- positive. Occasionally, a gram-negative form has been reported. The acid-fast properties of actinomycetes, notably among the no- cardias, h
RMKW119B–Fluorescent antibody stain of Yersinia pestis . Plague, caused by the bacterium Yersinia pestis, is transmitted to humans by a rodent flea, Xenopsylla cheopis, or by handling infected animals. Image courtesy CDC. 1981.
RMKW1107–Dark stained bipolar ends of Yersinia pestis can clearly be seen in this Wright's stain of blood from a plague victim. The actual cause of the disease is the plague bacillus, Yersinia pestis . It is a nonmotile, non-spore-forming, Gram-negative, non-lactose fermenting, bipolar, ovoid, 'safety-pin-shaped' bacterium. Image courtesy CDC, 1993.
RMK1F3J3–This is a photomicrograph of a Gram-stained urethral exudate sample from a male who presented with a case of urethritis. In this particular view, what turned out to be numerous intracellular Gram-negative Neisseria gonorrhoeae diplococci bacteria were evident. Gram-stain is a histochemical technique used by microbiologists to differentiate microorganisms into two large groups, that of Gram-negative, or Gram-positive bacteria. Gram-positive bacteria stain a dark violet-blue, for the crystal-violet stain binds to the exterior cell wall of these organisms. On the other hand, Gram-negative bacteri
RMK1F42T–Yersinia pestis, Gram-negative bacillus. Y. pestis, is a small (0.5 x 1.0 {micro}M) gram-negative bacillus. Bipolar staining occurs when using Wayson, Wright, Giemsa, or methylene blue stain, and may occasionally be seen in Gram-stained preparations. Image courtesy CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory, 2002.
RMK1F41G–Yersinia pestis, Gram-negative bacillus, 1000x Magnification. Y. pestis, is a small (0.5 x 1.0 {micro}m) gram-negative bacillus. Bipolar staining occurs when using Wayson, Wright, Giemsa, or methylene blue stain, and may occasionally be seen in Gram-stained preparations. Image courtesy CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory, 2002.
RF2JTPAAP–Spore staining microbiology lab technique steps diagram, using Malachite green and safranin vector illustration eps10
RMK1F445–Yersinia pestis, Gram-negative bacillus, 1000x Magnification. Y. pestis, is a small (0.5 x 1.0 {micro}M) gram-negative bacillus. Bipolar staining occurs when using Wayson, Wright, Giemsa, or methylene blue stain, and may occasionally be seen in Gram-stained preparations. Image courtesy CDC/Courtesy of Larry Stauffer, Oregon State Public Health Laboratory, 2002.
RMKW11FN–Salmonella sp. bacteria in tetrathionate enrichment broth stained using direct FA staining technique. Tetrathionate enrichment broth contains bile salts, thereby, inhibiting the growth of gram-positive organisms, while Salmonella, an organism which possess the enzyme tetrathionate reductase, grows uninhibited. Image courtesy CDC/Bernice Thomason, 1969.
RMKR16X1–Photomicrograph of kidney tissue, using a silver staining technique, revealing the presence of Leptospira bacteria, 1964. Humans become infected by swallowing water contaminated by infected animals or through skin contact, especially with mucosal surfaces, such as the eyes or nose, or with broken skin. The disease is not known to be spread from person to person. Image courtesy CDC/Dr. Martin Hicklin.
RF2JTPAAE–Acid fast staining microbiology lab technique steps diagram, using Carbol fuchsine and methylene blue vector illustration eps10
RMKR16RK–Photomicrograph of kidney tissue, using a silver staining technique, revealing the presence of Leptospira bacteria, 1964. Humans become infected by swallowing water contaminated by infected animals or through skin contact, especially with mucosal surfaces, such as the eyes or nose, or with broken skin. The disease is not known to be spread from person to person. Image courtesy CDC/Dr. Martin Hicklin.
RMKR16MR–Photomicrograph of kidney tissue, using a silver staining technique, revealing the presence of Leptospira bacteria, 1964. Humans become infected by swallowing water contaminated by infected animals or through skin contact, especially with mucosal surfaces, such as the eyes or nose, or with broken skin. The disease is not known to be spread from person to person. Image courtesy CDC/Dr. Martin Hicklin.
Search Results for Gram negative stain Stock Photos and Images (81)
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