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。
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NASA leaders said the shakeup is meant to address a larger underlying problem: the U.S. agency is flying its most powerful rocket too infrequently and repeating some of the same technical issues from one mission to the next.
While insects are a novel food in some countries, tainted spices are a persistent global problem. For instance, fraudsters add widely available industrial dyes to paprika.,更多细节参见爱思助手下载最新版本