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Tag: Prions

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Prions, Viruses

What is life?

April 16, 2022 — 0 Comments

Our latest book!

Food product development for the home entrepreneur. 8 chapters over 54 pages.

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A$12.95

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Presumptive identification of Escerichia coli O157 can be made on this, CHROMagar O157.

Totally amazing, automated streaking by disposable beads ... the InoqulA technology by @becton_dickinson.

Mycobacterium tuberculosis on Löwenstein-Jensen medium. An incubation period of two to three months is generally required, with at least six weeks needed before any visible growth is apparent.

For Mycology Monday, here are four species of Candida on BiGGY agar. BiGGY contains yeast extract, glycine, glucose, sodium sulphite, bismuth ammonium citrate at a pH of 6.8. We have C. parapsilosis (top), C. tropicalis (right), C. krusei (bottom) and C. albicans (left).

This is a Gram stain of the anaerobic coccus Finegoldia magna. Originally in the genus Peptostreptococcus, this new genus named after Sydney "Sid" Martin Finegold (1921-2018) was created in 1999.

Generalised structure of a retrovirus, which are single strand RNA viruses.

Oh yes, always love species of Candida on CHROMagar™ Candida. Here we have C. albicans ATCC90028 (top), C. krusei ATCC6258 (right), C. glabrata (bottom), C. tropicalis (lower left), C. parapsilosis ATCC90018 (upper left). What's your favourite?

Bacillis antracits is non-motile (left) whereas other Bacillus species are not ... a diagnostic characteristic. In this tryptose agar deep, the colourless (colourless when oxidised) dye 2,3,5-Triphenyl-2H-tetrazol-3-ium chloride is incorporated. Metabolism (reduction) of the dye growth during motile growth results is easy visitation due to production of the red pigment formazan.

Beautiful indeed, on MacConkey ... that's Serratia marcescens on the left and Citrobacter freundii on the right.

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