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.
国务院国资委党委召开扩大会议暨党的建设工作领导小组会议，研究部署启动国资央企学习教育工作，要求国资央企各级党组织突出严实标准，以务实举措推动学习教育落地见效；要深刻理解、准确把握、全面落实“立党为公、为民造福、科学决策、真抓实干”的总要求，坚持学查改一体推进，统筹抓好学习教育和重点工作任务。
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