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Microbiology—Living
Bacteria, fungi and slime-molds. Unless otherwise noted, cultures are shipped in
16 x 125 mm screw-cap culture tubes, tightly sealed to prevent contamination and
dehydration. All cultures are guaranteed pure strains of the organism and labeled
with appropriate medium and incubation temperature. Shipped as slant cultures.
Upon receipt, place cultures in a dark or dimly lit area or incubator at the appropriate
temperature. Keep tubes sealed with caps or plugs. Bacterial cultures should
be sub-cultured to fresh medium every 2–3 weeks to maintain active growth. New
cultures require 24 to 48 hours for full development of colonies and pigmentation in
pigmented strains. Although these are considered non-pathogenic, we strongly urge
you to practice good microbiological laboratory aseptic technique. Flinn Scientific,
Inc., assumes no responsibility for any infections resulting from using these materials.
We recommend sterilization of cultures prior to disposal.
MICROBIOLOGY—LIVING continued on next page.
Bacterial
Cultures
LM1000, etc.
© David M. Phillips/Visuals Unlimited
Bacterial Cultures
Allow 2 days for delivery of bacterial cultures. Large orders (10 or more)
of the same type may require a few extra days.
Catalog No. Description Incubation Temp. and Medium Gram Reaction Price/Each
LM1000 Bacillus cereus. Chain-forming motile rods (bacilli) capable of forming endospores. 30 °C Nutrient Agar Positive (+) $11.85
LM1002 Bacillus megaterium. Large, easily observed, variably motile rods found in soil and water.
Spore forming.
30 °C Nutrient Agar Variable (±) 14.25
LM1003 Bacillus subtilis. Spore-forming motile rods. Source for antibiotics bacitracin and subtilin. 25–30 °C Nutrient Agar Positive (+) 11.90
LM1005 Enterobacter aerogenes. Variably motile rods commonly found in the intestines. 30–37 °C Nutrient Agar Negative (–) 11.90
LM1006 Escherichia coli. Variably motile rods found singly, paired and in short chains. Common
intestinal organism. Lactose fermenter.
37 °C Nutrient Agar Negative (–) 11.90
LM1148 Escherichia coli. Lactose negative (Lac –). Strain of E. coli unable to ferment lactose. 37 °C Nutrient Agar Negative (–) 12.50
LM1149 Escherichia coli. Strain B. Host organism for T2 and T4 phages. 37 °C Nutrient Agar Negative (–) 12.50
LM1007 Micrococcus luteus (Sarcina lutea). Non-motile spheres (cocci) found in milk products,
produces yellow pigment.
25 °C Nutrient Agar Positive (+) 11.85
LM1008 Micrococcus roseus. Non-motile spheres single, paired and clustered. Produces
rose-red pigment.
25 °C Nutrient Agar Positive (+) 11.85
LM1009 Pseudomonas fluorescens. Motile rods, single and paired. Associated with food spoilage. Produces fluorescent
pigment.
25 °C Nutrient Agar Negative (–) 11.85
LM1010 Rhodospirillum rubrum. Motile spirals (spirilli). Produces a reddish pigment. Photosynthetic under
anaerobic conditions.
25–30 °C
Tryptic Soy Agar
Negative (–) 11.90
LM1011 Sarcina aurantiaca. Non-motile spheres in packets. Produces an orange-yellow pigment. 25 °C Nutrient Agar Positive (+) 11.90
LM1013 Serratia marcescens. Motile rods. Produces reddish pigment prodigiosin. Incubation at
higher temperatures suppresses pigment formation.
25 °C Nutrient Agar Negative (–) 11.90
LM1256 Staphylococcus epidermidis. Non-motile spheres arranged in grapelike clusters commonly found on skin.
Recommended only for advanced high school and college microbiology courses.
37 °C Nutrient Agar or
Tryptic Soy Agar
Positive (+) 11.85
LM1015 Streptococcus lactis (Lactococcus lactis). Variably motile spheres in pairs and short chains.
A milk contaminant that causes souring.
25–30 °C
Tryptic Soy Agar
Positive (+) 11.90
LM1257 Streptococcus salivarius. Non-motile, chain-forming spheres commonly found in the mouth.
Recommended only for advanced high school and college microbiology courses.
30–37 °C Tryptic
Soy Agar or Blood Agar
Positive (+) 13.05
LM1016 Vibrio fischeri. Curved motile rods. Bioluminescent. 25 °C
Photobacterium Agar
Negative (–) 11.90
LyoQuick Freeze-Dried Bacteria
Lyophilized bacteria in an easy-to-use self-contained rehydration and dispensing
tube. Each tube contains two ampules, one with freeze-dried bacteria and one
containing sterile rehydration broth. Pinch the tube to break the internal ampules and
let the freeze-dried organisms rehydrate, then dispense the rehydrated organisms
into broth or onto agar through the dropper tip. Unique design eliminates several
steps typically required for the rehydration of freeze-dried cultures. Refrigeration is
recommended.
Catalog No. Description Type Price/Each
FB2315 LyoQuick
Freeze-Dried
Bacteria
Staphylococcus epidermidis $23.70
FB2316 Serratia marcescens 23.70
FB2318 E. coli 23.70
LyoQuick Freeze-Dried Bacteria
FB2315, etc.
Bacteria Strips for
Autoclave Verification
FB2146
Bacteria Strips for Autoclave Verification
Indicators consist of Bacillus stearothermophilus spores saturated on paper strips,
individually placed into envelopes. To verify autoclave performance, simply place
indicators in the autoclave so they are exposed to the steam. After the cycle is
complete, inoculate the strip in tube of broth and incubate at 55–60 ºC for at least 48
hours. If no growth occurs, your autoclave is functioning properly!
Catalog No. Description Price/Pkg.
FB2146 Bacteria Strips for Autoclave Verification $38.50
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