Bacillus Marisflavi

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Domain: Bacteria Kingdom: Eubacteria Phylum: Firmicutes Class: Bacilli Order: Bacillales Genus: Bacilus



NCBI: Taxonomy

Genus species

Habitat Information

Bacillus marisflavi is a bacteria isolated from the tidal flat of the Yellow Sea in Korea. Found mainly is soil, the organism can live in extreme environments such as high pH, high temperatures, and high salt. The organism was grown in a Nutrient Agar (NA) in temperatures of 30-35 degree celsius.

Description and Significance

The gram positive organism happened to be rod shaped measuring about 1.5-3.5 micrometers in size that is positive for endospore formation. The aerobic colony was circular, slightly irregular, and slightly raised with a shiny yellow color. Bacillus marisflavi is also a motile organism.

Genome Structure

The organism has a 16S rRNA sequence.

Cell Structure, Metabolism and Life Cycle

The cell wall is composed of teichoic acid.

Bacillus marisflavi's biochemical characteristics are as follows:

Positive results for gelatin hydrolysis, DNA hydrolysis, Triple sugar iron agar, eosin methylene blue agar, MacConkey agar, decarboxylation, catalase, mannitol salt agar, antimicrobial sensitivity, and disinfectant sensitivity.

Negative results for phenol red broth, starch hydrolysis, casein hydrolysis, lipid hydrolysis, methyl red, Voges Proskauer, citrate test, SIM test, nitrate reduction test, urea hydrolysis, oxidase, Hektoen enteric agar, phenylalanine deaminase, blood agar, and phenylethyl alcohol agar.

Physiology and Pathogenesis

The organism in rare cases has been found to cause bacillus bacteremia which can lead to the cause of localized infections such as pneumonia, visceral abscess, and tissue necrosis. Antibiotics such as clindamycin and vancomycin appear useful in the treatment of these infections.



Page authored by Alexys Campos and Elissa de la Rosa, student of Prof. Kristine Hollingsworth at Austin Community College.