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
变成一种更硬的纤维软骨，它把两块分裂的骨骼桥接在一起。
硬皮，生老茧；
)This transforms the callus into a tougher fibrocartilaginous callus, which bridges the gap between the two pieces of bone.
这个过程将血变成一种更硬的纤维软骨，它把两块分裂的骨骼桥接在一起。
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
原菌粗毒素提取液为选择压，对水稻进行抗
选，
果表明：粗毒素提取液对水稻愈伤组织诱导、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。
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