我们已经知道马铃薯退化是由病毒感染种薯引起的,但很多病毒不能侵染马铃薯的茎尖分生组织。因此,用马铃薯茎尖(0.5毫米以下)进行离体培养,就能产生无病毒植株,达到防止退化的效果。这个方法叫做茎尖培养。目前在我国已有一些单位用这个方法从几个马铃薯品种中获得无病毒植株,并且通过繁殖,提供原种基地作无病毒原种栽培。下面用图解介绍一下茎尖培养的方法。 We already know that potato degradation is caused by virus-infected seed, but many viruses can not infect the shoot apical meristem of potato. Therefore, with potato shoot tips (0.5 mm below) for in vitro culture, can produce virus-free plants, to prevent the effect of degradation. This method is called shoot tip culture. At present, some units in our country have used this method to obtain virus-free plants from several potato varieties, and provide breeding bases for the cultivation of virus-free elites. Here’s a graphic introduction of shoot tip culture method.