苹果在发育期间呼吸对ＫＣＮ敏感，进入跃变期时呼吸变为对ＫＣＮ不敏感，但对间氯苯氧肟酸（ＣＬＡＭ）敏感。跃变期的苹果切片陈化后有诱导呼吸发生，且ＫＣＮ与ＣＬＡＭ对诱导呼吸都有一定的抑制作用。当在ＣＬＡＭ存在下进行陈化时，苹果诱导呼吸的发生被抑制约３０％，跃变期果实的特点是当果实进入成熟期时呼吸途径发生了由细胞色素途径向抗氰的交替途经转移的现象；同时其果实切片在陈化后可以发生诱导呼吸。 Breathing of apple during development is sensitive to KCN, and respiration becomes KENS-insensitive at the transitional phase but sensitive to m-chlorphenyhydroxamic acid (CLAM). The transitional period of apple slices after induction of respiration, and KCN and CLAM have a certain degree of inhibition of induced respiration. When aging in the presence of CLAM, the induction of respiration by apple is inhibited by about 30%. The fruit of transitional phase is characterized by the alternating transfer of cytochromes to cyanide through the respiratory pathway when the fruit enters maturation Phenomenon; the same time, the fruit slices can occur after aging induced breathing.