It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.
ZDNET's key takeawaysThe Linux kernel is moving toward a better way of identifying developers and their code.
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arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.
“今天可能要让你们失望了，这次讨论的不是发展问题，而是保护的问题。”2016年1月，推动长江经济带发展座谈会在重庆召开，习近平总书记开门见山。