callus GRE

This transforms the callus into a tougher fibrocartilaginous callus, which bridges the gap between the two pieces of bone.

这个过程将血痂转变成一种更硬的纤维软骨痂，它把两块分裂的骨骼桥接在一起。

The plant tissue is introduced to these genes via agrobacillus and in the callus culture, the callus resisting phytopathogen (bacteria and fungus) can be externally chosen.

植物组通过农杆菌导入这些基因，并在愈伤组期可以作体外选择抗植物病原菌（细菌和真菌）的愈伤组；

Callus was efficiently induced from in vitro root segment devoid of rhizodermis on MS medium.

结果表明，以离体去皮根段外植体，MS基本培养基，诱导愈伤组较。

<br/> This paper deals with studies on in vitro culture of bulbil o f Dioscorea opposita,including callus induction and differentiation,plantlet root development and transplantation.

对怀山药(Dioscorea opposita)零余子愈伤组的诱导、分化、再生苗的生根和移栽进行了研究。

The results showed that the sequence of the ability to generate the callus was flowering branch >anthotaxy >lamina, and the best result of plant regeneration was with the cultivation of the flow...

结果愈伤组的生成能力花枝大于花序且二者均大于叶片;植株再生以花枝的培养结果最佳。

Abstract： Ethionine-resistant cultures were isolated by screening seedlings for ethionine-tolerance and selecting the calluses on an ethionine-containing medium.

摘 要： 用乙硫氨酸筛选剂，通过幼苗和组培养筛选得到乙硫氨酸抗性愈伤组。

Under the selection pressure of crude toxin filtration, three kinds of treatment methods and four kinds of phytotoxin concentrations were used to screen the blast-resistant callus phenylalanine.

摘要以稻瘟病病原菌粗毒素提取液选择压，对水稻进行抗病性筛选，结果表明：粗毒素提取液对水稻愈伤组诱导、继代及分化有明显的抑制作用，抑制程度随毒素浓度提高而增强，且品种间差异显著。