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Colorful Handrail Swab

Swab taken of the wooden handrail outside the classroom. Incubated on TSA for 24 hrs, room temp for 48hrs the held at refrigerated temperatures. Color developed once the plate was held in the refrigerator and colonies continued to grow. Several yellow circular mucoid colonies as well as an oran... Read More

Pseudomonas

Casein Plates contain the major milk protein found in milk. Pseudomonas aeruginosa grown on Casien agar for 72 hours at 37 degree's C to look for the presence of the exoenzyme proteases/caseases . Pseudomonas aeruginosa, casein hydrolysis, as noted by a zone of clearing around the organism, as... Read More

Carbon-Based (micro) Life

The bonded carbons are shown using E. coli, E. faecalis, and C. violaceum. Using BBL's CHROMagar, we were able to show the pi bonds in pink (E. coli) and blue (E. faecalis). Read More

BEA Fungal Contaminant

Seveal fungal contaminants seen on Bile Esculin agar (BEA) after several montha at refrigerated temperature. The BEA agar did turn black indicating esculin hydrolysis. Read More

Lactobacillus on MRS

Happy halloween Read More

Physarum

Physarum polycephalum, slime mold, grown in a large perti plate on moist paper towels using oatmeal as the food source. Culture was grown in the dark at room temperature. The paper towel was moistened every day with tap water. After 3 week’s the culture formed sporangia (fruiting bodies). Image ... Read More

SHoe imprint mix

Imprint of a tennis shoe done on a large TSA plate, grown for 24 hrs at 37 degrees C, held at room temp for 48 hrs then stored in the refrigerator. Interesting mix of a variety of bacteria (Bacillus spp) and possible yeast. Read More

Fungal contaminant on BEA

Fungal like contaminant, presumably air borne, on BEA media after 1 month in the refrigerator. Mucoid mounding beige center with a hairlike circular border. Read More

Sweet Jellies

Pigmented agar and 4 days of cultivating, t' 5 Read More

Purple Scream

Please submit your best bacterial masterpiece to the American Society for Microbiology's annual Agar Art contest!

Shown here is Vibrio fischeri grown on extra salty LB that was stategically dyed purple with Crystal Violet and accentuated with colored markers. Read More

Handrail swab

Swab taken of the wooden handrail outside the classroom. Incubated on TSA for 24 hrs, room temp for 48hrs the held at refrigerated temperatures. Beige colony was mucoid in the center with some rhizoid features, mat and spreading around the outside, possible Bacillus spp or yeast. Read More

Shoe Imprint

Imprint of a tennis shoe done on a large TSA plate, grown for 24 hrs at 37 degrees C, held at room temp for 48 hrs then stored in the refrigerator. Colony (possible Bacillus spp or yeast) was mucoid with rhizoid raised growth, lobate edges. Read More

Shoe Imprint II

Imprint of a tennis shoe done on a large TSA plate, grown for 24 hrs at 37 degrees C, held at room temp for 48 hrs then stored in the refrigerator. Colony (possible Bacillus spp or yeast) was mucoid with rhizoid raised growth, lobate edges. Image taken using transmitted light. Read More

Unknown Crusty Slime Mold

Unknown crusty slime mold, looks like popcorn, seen in the grass growing out of a tree room after months of heavy rain. Santa Cruz, CA Read More

Shoe Swab Mix II

This was a swab taken form the bottom of a shoe incubated for 48 hrs at 37 degrees C then held at room temp for 48 hrs then held at refrigerated temp's. A variety of colony morphology is seen, rhizoid, mucoid, etc. Image taken using transmitted light. Read More

Serratia marcesens on Casein

Casein Plates contain the major milk protein found in milk. Serratia marcesens was grown on Casien agar for 72 hours at 37 degree's C to look for the presence of the exoenzyme proteases/caseases . Serratia marcesens exhibits casein hydrolysis as well as red colony pigment prodigiosin. Read More

Happy Halloween MAC Style

E. Coli grown on MacConkey Agar at 37 degrees for 24 hours in the shape of a jack-o-lantern face.
-Important Ingredients: crystal violet, bile salts, neutral red (color indicator), lactose
-Differential: used to identify and isolate lactose fermenting G- enteric bacteria mainly Enterobacteriac... Read More

Happy Halloween!

Staphylococcus aureus grown on Mannitol salt agar (MSA) for 24 hrs at 27 degree's C in the shape of a jack-o-latern smile.
MSA is a selective and differential agar used to differentiate between pathogenic S. aureus and S. epidermidis
•Important Ingredients: Phenol red, mannitol (sugar), 7.5% N... Read More

Lichen on tree trunk

Lichen, a consortium of cyanobacteria and fungus in a symbiotic relationship, is commonly found on damp concrete surfaces where the moisture made an otherwise inhabitable niche into a habitable one. Moisture together with photosynthetic cyanobacteria enable the churning out of complex organic mo... Read More

Freshman Biology, #SciArt, and The Amoeba Sisters

In this post from my microbiology/education blog, I describe another "artistic" approach to learning introductory biology. Two fine #SciArt communicators, "The Amoeba Sisters," offered to judge some of the artwork my first year biology students created. Read More
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