Polyamines Promote the Biosynthesis of Ethylene in Detached Rice Leaves
Polyamines Promote the Biosynthesis of Ethylene in Detached Rice Leaves
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多胺促进水稻离体叶片中乙烯的生物合成
DOI：
10.1093/oxfordjournals.pcp.a078148
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
C. Kao
中科院分区：
文献类型：
--
作者：
S. Chen;C. Chen;C. Kao
研究了腐胺、亚精胺、精胺和丙二胺等多胺对水稻离体叶片乙烯释放的影响。多胺能有效地促进水稻离体叶片在光照和黑暗条件下乙烯的产生。腐胺在施用4小时内刺激乙烯的产生，结果表明腐胺直接促进乙烯的产生。腐胺也刺激乙烯的产生在离体叶片已被老化2和4天。腐胺的刺激作用是通过促进1-氨基环丙烷-1-羧酸（ACC）的合成和ACC向乙烯的转化而实现的。腐胺对水稻叶片中S-腺苷甲硫氨酸脱羧酶活性有抑制作用。因此，腐胺对ACC合成的增强似乎是由ACC合酶活性的增加和ACC合酶底物（S-腺苷甲硫氨酸）水平的增加介导的。
The effects of polyamines (putrescine, spermidine, spermine and diaminopropane) on the production of ethylene in detached rice leaves were investigated. Polyamines effectively promoted the production of ethylene in detached rice leaves under both light and dark conditions. Putrescine stimulated the production of ethylene within 4 hours of its application, a result suggests that putrescine enhances the production of ethylene directly. Putrescine also stimulated the production of ethylene in detached leaves that had been aged for 2 and 4 days. The stimulatory effect of putrescine resulted from the enhancement of the synthesis of 1-aminocyclopropane-lcarboxylic acid (ACC) and the conversion of ACC to ethylene. • The activity of S-adenosylmethionine decarboxylase in segments of rice leaves was inhibited by the application of putrescine. Thus, the enhancement of the synthesis of ACC by putrescine seems to be mediated by increases in the activity of ACC synthase and in the level of the substrate (S-adenosylmethionine) for ACC synthase.