After transferring to redifferentiation medium, semiglobular protuberances developed to global, stick-like protuberances, shoot and root finally.

• 该愈伤组织从增殖培养基转接到分化培养基后，这些半圆球形的突起进一步形成圆形的球形胚，球形胚进一步分化可形成棒状，突尖状的一些突起，最后分化出芽和根。