Callus 1 . a mass of undifferentiated parenchyma . if a plant is injured , the surrounding uninjured parenchyma cells form a suberin - impregnated callus , sometimes , sealing off the wound 愈伤组织： 1 .一团未分化的薄壁组织。如果植物受到损伤，那么周围未受伤的薄壁组织就会在伤口处形成具有分生能力的组织，有时可以封闭伤口。
