Stress-induced factor involved in flower formation of Lemna is an alpha-ketol derivative of linolenic acid.
Stress-induced factor involved in flower formation of Lemna is an alpha-ketol derivative of linolenic acid.
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浮萍花形成中涉及的应激诱导因子是亚麻酸的α-酮醇衍生物。
DOI：
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发表时间：
2000
影响因子：
4.9
通讯作者：
A. Takimoto
中科院分区：
文献类型：
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作者：
M. Yokoyama;S. Yamaguchi;S. Inomata;K. Komatsu;S. Yoshida;T. Iida;Y. Yokokawa;M. Yamaguchi;S. Kaihara;A. Takimoto
一种与去甲肾上腺素（NE）共同孵育的应激诱导物质（C因子）在浮萍中具有强烈的成花诱导活性。我们分离了C因子的一个必需组分（FIF），并确定其化学结构为9-羟基-10-氧代-12（Z），15（Z）-十八碳二烯酸，它是由9-羟基过氧亚麻酸形成的亚麻酸的α-酮醇衍生物。合成的FIF与NE（C因子活性）孵育后显示出与在应激浮萍中形成的FIF相当的花诱导活性。茉莉酸和13-羟基-12-氧代-9（Z），15（Z）-十八碳二烯酸（12，13-α-酮醇亚麻酸）均通过亚麻酸的13-氢过氧化物形成，并且通过化学和酶促方法合成的FIF的所有其他衍生物均未显示因子C活性。这些结果表明，FIF的分子结构对因子C活性是非常特异的。
A stress-induced substance(s) (factor C) incubated with norepinephrine (NE) has strong flower-inducing activity in Lemna paucicostata. We isolated an essential component (FIF) of factor C, and clarified its chemical structure as 9-hydroxy-10-oxo-12(Z),15(Z)-octadecadienoic acid, an alpha-ketol derivative of linolenic acid, which is formed via 9-hydroperoxy linolenic acid. Synthesized FIF showed flower-inducing activity after incubation with NE (factor C activity) equivalent to that formed in the stressed Lemna. Jasmonic acid and 13-hydroxy-12-oxo-9(Z),15(Z)-octadecadienoic acid (12,13-alpha-ketol linolenic acid), both of which are formed via 13-hydroperoxide of linolenic acid and all other derivatives of FIF synthesized by chemical and enzymatic processes failed to show the factor C activity. These results suggest that the molecular structure of FIF is very specific for the factor C activity.
影响因子：
56.9
作者：
SONG, WC;BRASH, AR
通讯作者：
BRASH, AR