外源生长素和细胞分裂素是诱导离体培养细胞分化与增殖所必需的，2，4-D是诱导胚性愈伤组织的重要激素。
The exogenous auxin and cytokinin are necessary to induced differentiation and proliferation of cells of culture in vitro. 2,4-D is an important hormone of induced embryogenic calluses.
细胞分裂素与生长素的使用对体胚的正常成熟没有明显的促进作用，高浓度时抑制体胚的正常成熟；
L-1. Combination of cytokinins and auxin did not marked improve somatic embryos normal maturation, furthermore prevented their maturation in a higher concentration level.
目的：探讨骨多肽生长素在离体颅骨瓣原位修复颅骨缺损中促进新骨形成的作用。
OBJECTIVE: to investigate the impact of bone polypeptide ghrelin on the promotion of new bone formation during the in situ restoration of skull defect by in vitro skull flap.
目的：探讨骨多肽生长素在离体颅骨瓣原位修复颅骨缺损中促进新骨形成的作用。
OBJECTIVE: to investigate the impact of bone polypeptide ghrelin on the promotion of new bone formation during the in situ restoration of skull defect by in vitro skull flap.
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