<P> Beginning in the late 19th century , agar began to be used heavily as a solid medium for growing various microbes . Agar was first described for use in microbiology in 1882 by the German microbiologist Walther Hesse , an assistant working in Robert Koch 's laboratory , on the suggestion of his wife Fannie Hesse . Agar quickly supplanted gelatin as the base of microbiological media , due to its higher melting temperature , allowing microbes to be grown at higher temperatures without the media liquefying . </P>
<P> Beginning in the late 19th century , agar began to be used heavily as a solid medium for growing various microbes . Agar was first described for use in microbiology in 1882 by the German microbiologist Walther Hesse , an assistant working in Robert Koch 's laboratory , on the suggestion of his wife Fannie Hesse . Agar quickly supplanted gelatin as the base of microbiological media , due to its higher melting temperature , allowing microbes to be grown at higher temperatures without the media liquefying . </P>
who introduced the use of agar as a solidifier liquid media
who introduced the use of agar as a solidifier liquid media
Walther Hesse
Walther Hesse