Research Station, Canada Department of Agriculture, Summerland, British Columbia, Canada.
Plant Physiol. 1969 Aug;44(8):1127-31. doi: 10.1104/pp.44.8.1127.
Ripening of ;Tydeman's Early' apples (Malus sylvestris L.) assessed by the occurrence of the respiratory climacteric was delayed by succinic acid 2,2-dimethyl hydrazide (B-9) but not by 2-chloroethyltrimethylammonium chloride (CCC), each applied 14 days after bloom. B-9 also inhibited ethylene production by fruits exhibiting the climacteric rise. Inhibition of the climacteric by B-9 was overcome by exogenous ethylene, but the latter treatment failed to completely reverse the B-9 inhibition of endogenous ethylene production.In apple fruitlets harvested within 6 weeks of bloom, ethylene stimulated respiration but did not initiate a climacteric respiratory pattern, did not induce a color change, and did not give rise to any measurable increase in endogenous ethylene production. However, all of these changes did occur in more mature fruit. These data suggest that apples have 2 physiological stages with regard to their reaction to exogenous ethylene.
用呼吸跃变出现来评估 ;Tydeman 的早期'苹果（Malus sylvestris L.）的成熟度，结果表明琥珀酸 2,2-二甲基酰肼（B-9）能延迟苹果的成熟，而 2-氯乙基三甲基氯化铵（CCC）则不能。这两种物质都是在落花后 14 天施用的。B-9 还抑制了表现出生理跃变上升的果实中的乙烯生成。外源乙烯能克服 B-9 对呼吸跃变的抑制作用，但后一种处理方法并不能完全逆转 B-9 对内源乙烯生成的抑制作用。在落花后 6 周内收获的苹果幼果中，乙烯能刺激呼吸作用，但不能引发呼吸跃变模式，也不能诱导颜色变化，不能引起任何可测量的内源乙烯生成增加。然而，所有这些变化都发生在更成熟的果实中。这些数据表明，苹果在对外源乙烯的反应方面有 2 个生理阶段。
