Besiyeri

Agar1843 – 1910ROBERT KOCH‣ Experimented with medium to grow bacteria on.‣ He tried gelatin, but it did not work.‣ Wife of colleague recommended agar (a gelatinlikeproduct derived from seaweed).‣ Didn’t melt, and bacteria couldn’t digest it.‣ He could also add various nutrients necessary togrow certain organisms.‣ Koch (pronounced Coke) originated use of a two partdish for growing bacteria (______ ______named after Julius Petri, a Germanbacteriologist), and a technique for isolating purebacterial colonies.