Blanpied G D
Department of Pomology, Cornell University, Ithaca, New York 14850.
Plant Physiol. 1972 Apr;49(4):627-30. doi: 10.1104/pp.49.4.627.
High ethylene levels were associated with flower abscission in apple (Malus sylvestris) and cherry (Prunus avium and Prunus cerasus), "June drop" of immature cherries, and harvest drop of apple and red raspberry (Rubus idaeus). However, an increase in ethylene content was not associated with June drop of apples and harvest drop of cherries. During the period of fruit ripening on the plant, the largest increases in ethylene occurred in apple flesh and red raspberry receptacular tissue. Ethylene remained low throughout the period of sweet and tart cherry ripening. The data obtained indicated marked ethylene gradients between adjacent tissues. Increases of ethylene in some tissues may have resulted from ethylene diffusion from adjacent tissues containing high levels of ethylene.
高乙烯水平与苹果（森林苹果）、樱桃（欧洲甜樱桃和欧洲酸樱桃）的落花、未成熟樱桃的“六月落果”以及苹果和红树莓（悬钩子属）的采前落果有关。然而，乙烯含量的增加与苹果的六月落果和樱桃的采前落果并无关联。在果实挂树成熟期间，乙烯含量增幅最大的是苹果果肉和红树莓花托组织。在甜樱桃和酸樱桃整个成熟期间，乙烯含量一直较低。所获得的数据表明相邻组织之间存在明显的乙烯梯度。某些组织中乙烯含量的增加可能是由于乙烯从相邻乙烯含量高的组织扩散所致。
