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Bacillus subtilis | bacterium | Britannica
Bacillus subtilis bacterial growth phases
A Bacillus subtilis bacterial colony showing signs of stationary growth after 48 hours of incubation at 37 °C (98.6 °F; magnified about 9×).
A.W. Rakosy/Encyclopædia Britannica, Inc.
Bacillus subtilis bacterial growth phases
After 96 hours at 37 °C (98.6 °F), a Bacillus subtilis bacterial colony shrivels, which indicates that it has entered the death phase (magnified about 9×).
A.W. Rakosy/Encyclopædia Britannica, Inc.
Bacillus subtilis
A Bacillus subtilis bacterial colony entering the log phase of growth after 18–24 hours of incubation at 37 °C (98.6 °F; magnified about 6×).
A.W. Rakosy/Encyclopædia Britannica, Inc.

Learn about this topic in these articles:

production of bacitracin

  • In antibiotic: Aztreonam, bacitracin, and vancomycin

    …by a special strain of Bacillus subtilis. Because of its severe toxicity to kidney cells, its use is limited to the topical treatment of skin infections caused by Streptococcus and Staphylococcus and for eye and ear infections.

    Read More
  • In bacillus

    …useful antibiotics are produced by B. subtilis (bacitracin). In addition, strains of B. amyloliquefaciens bacteria, which occur in association with certain plants, are known to synthesize several different antibiotic substances, including bacillaene, macrolactin, and difficidin. These substances serve to protect the host plant from infection by fungi or other bacteria…

    Read More

species of bacillus

  • In bacillus

    …hay bacillus (now known as Bacillus subtilis): one that could be killed upon exposure to heat and one that was resistant to heat. He called the heat-resistant forms “spores” (endospores) and discovered that these dormant forms could be converted to a vegetative, or actively growing, state. Today it is known…

    Read More

work of Yanofsky

  • In Charles Yanofsky

    coli and Bacillus subtilis. While conducting experiments focused on discerning the mechanisms of this process in 1981, Yanofsky noticed that the cell was able to sense how much tryptophan was present and alter the transcription process accordingly, halting it if necessary. This indicated that mRNA was not…

    Read More
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Bacillus subtilis
Bacillus subtilis
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Bacillus subtilis

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Alternate titles: hay bacillus
Bacillus subtilis bacterial growth phases
A Bacillus subtilis bacterial colony showing signs of stationary growth after 48 hours of incubation at 37 °C (98.6 °F; magnified about 9×).
A.W. Rakosy/Encyclopædia Britannica, Inc.
Bacillus subtilis bacterial growth phases
After 96 hours at 37 °C (98.6 °F), a Bacillus subtilis bacterial colony shrivels, which indicates that it has entered the death phase (magnified about 9×).
A.W. Rakosy/Encyclopædia Britannica, Inc.
Bacillus subtilis
A Bacillus subtilis bacterial colony entering the log phase of growth after 18–24 hours of incubation at 37 °C (98.6 °F; magnified about 6×).
A.W. Rakosy/Encyclopædia Britannica, Inc.

Learn about this topic in these articles:

production of bacitracin

  • In antibiotic: Aztreonam, bacitracin, and vancomycin

    …by a special strain of Bacillus subtilis. Because of its severe toxicity to kidney cells, its use is limited to the topical treatment of skin infections caused by Streptococcus and Staphylococcus and for eye and ear infections.

    Read More
  • In bacillus

    …useful antibiotics are produced by B. subtilis (bacitracin). In addition, strains of B. amyloliquefaciens bacteria, which occur in association with certain plants, are known to synthesize several different antibiotic substances, including bacillaene, macrolactin, and difficidin. These substances serve to protect the host plant from infection by fungi or other bacteria…

    Read More

species of bacillus

  • In bacillus

    …hay bacillus (now known as Bacillus subtilis): one that could be killed upon exposure to heat and one that was resistant to heat. He called the heat-resistant forms “spores” (endospores) and discovered that these dormant forms could be converted to a vegetative, or actively growing, state. Today it is known…

    Read More

work of Yanofsky

  • In Charles Yanofsky

    coli and Bacillus subtilis. While conducting experiments focused on discerning the mechanisms of this process in 1981, Yanofsky noticed that the cell was able to sense how much tryptophan was present and alter the transcription process accordingly, halting it if necessary. This indicated that mRNA was not…

    Read More