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Julius Richard PetriJulius Richard Petri (May 31, 1852 – December 20, 1921) was a German bacteriologist who is generally credited with inventing the Petri dish while working as assistant to Robert Koch.

 

Life and career

Petri first studied medicine at the Kaiser-Wilhelm-Academy for Military Physicians (1871–1875) and received his medical degree in 1876. He continued his studies at the Charité Hospital in Berlin and was on active duty as a military physician until 1882, continuing as a reservist.

From 1877 to 1879 he was assigned to the Imperial Health Office (German: Kaiserliches Gesundheitsamt) in Berlin, where he became an assistant to Robert Koch. On the advice of Angelina Hesse, the New York-born wife of another assistant, Walther Hesse, the Koch laboratory began to culture bacteria on agar plates. Petri then invented the standard culture dish, or Petri plate, and further developed the technique of agar culture to purify or clone bacterial colonies derived from single cells. This advance made it possible to rigorously identify the bacteria responsible for diseases.

 

Other

On May 31, 2013, Google created an animated doodle in his honor to commemorate his 161st birthday. The doodle consisted of six animated petri dishes. As the cursor passes over each petri dish, it showed the source of the dish's contents: smelly socks, a door knob, a computer keyboard, a drooling dog, a plant in the rain, and a dish being washed.

 

 


Editor's Note: This article was originally published by Wikipedia, here, and is licenced as Public Domain under Creative Commons. See Creative Commons - Attribution Licence.



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