THE PHYSIOLOGY OF ETHYLENE FORMATION IN APPLES
THE PHYSIOLOGY OF ETHYLENE FORMATION IN APPLES
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DOI：
10.1073/pnas.45.3.335
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发表时间：
1959-01-01
影响因子：
11.1
通讯作者：
THIMANN, KV
中科院分区：
文献类型：
--
作者：
BURG, SP;THIMANN, KV
通过一种新的精确方法研究了苹果组织切片产生乙烯的情况。该过程的最佳温度是32℃，高于此温度乙烯产量会迅速下降。当组织暴露于较低温度时，热失活慢慢消失。乙烯产量和 O2 消耗量对 O2 张力的依赖性几乎相同，两者的半最小值均在 1.5-2.0% O2 时达到。虽然乙烯的合成在无氧条件下几乎立即停止，但前体积累，在空气中乙烯的过程可以迅速氧化。氚化水将其标记转移到乙烯上，从而表明该过程中的最终步骤之一是可逆脱水。产生乙烯的最终反应不需要O 2 的参与。提出了乙烯生产方案，其中1次或多次还原之后是快速氧化、可逆脱水和非氧化末端步骤。
The production of ethylene by sections of apple tissue has been investigated by a new and precise method. The optimal temperature for the process is 32[degree]C, and above this ethylene production falls off rapidly. The heat inactivation slowly disappears when the tissue is exposed to lower temperatures. Ethylene production and O2 consumption show almost identical dependence upon O2 tension, the half minimum value for both being reached at 1.5-2.0% O2. Although the synthesis of ethylene ceases almost immediately under anaerobic conditions, a precursor accumulates which can be rapidly oxidized in air with the procedure of ethylene. Tritiated water transfers its label to ethylene in such a manner as to indicate that 1 of the terminal steps in the process is a reversible dehydration. The final reaction leading to ethylene does not require the participation of 02- A scheme for ethylene production is proposed in which 1 or more reductions are followed by a rapid oxidation, a reversible dehydration, and a nonoxidative terminal step.