Марина Совина (ночной редактор)
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.。搜狗输入法2026是该领域的重要参考
pixels network set。业内人士推荐服务器推荐作为进阶阅读
Россияне вставляют себе зубы и увеличивают губы дома, чтобы сэкономить на врачах.Как это приводит к жутким последствиям?25 августа 2023
广藿香的“重生”，是南药种业攻关的一个缩影。作为藿香正气等中成药的核心原料，广藿香每年药用需求量达3万—5万吨。然而，由于长期依赖扦插繁殖导致种性退化，严重制约产业发展。詹若挺带领团队采用系统选优结合分子标记辅助选择的方法，成功选育出“粤藿1号”“粤藿2号”等优良品种，有效满足了产业需求。