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.
19:53, 2 марта 2026Бывший СССР
，这一点在新收录的资料中也有详细论述
Певцов резко высказался об иностранных псевдонимах российских артистов14:12
ITmedia�̓A�C�e�B���f�B�A�������Ђ̓o�^���W�ł��B
，详情可参考新收录的资料
A military statement said it had “initiated a wave of strikes targeting the Iranian terror regime military infrastructure across Iran”.。新收录的资料是该领域的重要参考
Extended Validation (EV) certs have their own special