By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.
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泰国第四大人口府孔敬府，借鉴中国“精准扶贫”理念，当地官员感慨“提供了解决贫困问题的勇气”。菌草技术在100多个国家“点草成金”。第七十三届联合国大会通过关于消除农村贫困问题的决议，把“精准扶贫”理念明确写入其中。中国的发展不仅改变了自己，也改变了世界。
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