The Mycology of the Mouth: A Text-book of Oral BacteriaLongmans, Green, 1903 - 241 страници |
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Страница 15
... colour - formation and remain colourless indefinitely . A few non - pathogenic bacteria , such as B. violaceous , which forms a purple pigment , apparently thrive best in the light . The red chromogens are generally more resistant to ...
... colour - formation and remain colourless indefinitely . A few non - pathogenic bacteria , such as B. violaceous , which forms a purple pigment , apparently thrive best in the light . The red chromogens are generally more resistant to ...
Страница 21
... from the bodies of the bacteria themselves . Some of these bacterial products are brightly coloured pigments , and it is easy to note in examining a cultivation of such a chromogen that the pigment THE BIOLOGY OF BACTERIA 21.
... from the bodies of the bacteria themselves . Some of these bacterial products are brightly coloured pigments , and it is easy to note in examining a cultivation of such a chromogen that the pigment THE BIOLOGY OF BACTERIA 21.
Страница 24
... colour- ing matters , or pigments . The colouring matter may be confined . to the bacteria themselves , or become diffused through the medium in which they grow . The pigments are often composed of several distinct chemical bodies which ...
... colour- ing matters , or pigments . The colouring matter may be confined . to the bacteria themselves , or become diffused through the medium in which they grow . The pigments are often composed of several distinct chemical bodies which ...
Страница 25
... coloured layer , while at 22 ° C. no growth takes place . The bacillus of glanders is another organism producing ... colour in the absence of air ; among these Spirillum rubrum may be mentioned . This organism is of interest , as ...
... coloured layer , while at 22 ° C. no growth takes place . The bacillus of glanders is another organism producing ... colour in the absence of air ; among these Spirillum rubrum may be mentioned . This organism is of interest , as ...
Страница 26
... colour on the addition of nitrite - free sulphuric acid . If no nitrite is formed , as B. coli , nitrite must be also added , either in a 0 · 3 per cent . solution of potassium or sodium nitrite , or by adding yellow ( commercial ) ...
... colour on the addition of nitrite - free sulphuric acid . If no nitrite is formed , as B. coli , nitrite must be also added , either in a 0 · 3 per cent . solution of potassium or sodium nitrite , or by adding yellow ( commercial ) ...
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abscesses absolute alcohol acid reaction Agar Streak alkaline animals appear aureus bacillus bacteria Bacteriology Biological Characters.-An äerobic blood serum bodies broth broth culture buccalis capsule carbohydrate carbol cells cent cocci coccus colonies colour Crown 8vo cultivation dental caries dentine diplococci disease enamel endospores enzymes facultative anäerobic fermentation filaments filtered flagella flocculi fluid forty-eight hours gelatin Gelatin Plates Gelatin Stab Gelatin Streak gentian violet Glucose glycerine gonidia Gram's method granular growth guinea-pigs Hospital Illustrations immunity injection inoculation irregular large number layer Leptothrix liquefaction liquefied gelatin Litmus Milk marked medium mesentericus methylene blue microscope Miller minute motile observed obtained occurs ordinary aniline dyes organisms pathogenic peptone pigment pneumococcus Potato precipitate present produced pure culture pyogenes pyorrhoea saliva solution species spirilla Spore formation staphylococcus staphylococcus aureus sterile streptococcus Streptothrix surface teeth temperature threads tion tissues toxine tube tubercle twenty-four hours various virulence washed
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