采用茎尖分生组织培养技术，获得分蘖洋葱无毒试管苗。
Virue free in vitro shoots of Tillered onion were obtained from meristem tip apex tissue culture.
利用茎尖组织培养便可获得无毒或不带某些病毒的植株，进而生产脱毒种薯。
So it was necessary to use virus-free potato plants to produce virus-free seed potato through stem-tips tissue cultivation.
结果：健康人携带的白喉杆菌的培养特性典型均无毒力；
To test various biochemistrical characteristics, toxin and drug resistance of the Corynebacterium diphtheriae.
经过与鱼共培养试验，结果显示在合适的菌体浓度条件下，该菌株对鱼无毒害，并与鱼共生，显示良好的应用前景。
With the fish co-culture experiments, the results showed that cell concentration in the right conditions, the strains is non-toxic and symbiotic to fish, indicating a good prospect.
经过与鱼共培养试验，结果显示在合适的菌体浓度条件下，该菌株对鱼无毒害，并与鱼共生，显示良好的应用前景。
With the fish co-culture experiments, the results showed that cell concentration in the right conditions, the strains is non-toxic and symbiotic to fish, indicating a good prospect.
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