Arabidopsis lipoxygenase 2 is essential for formation of green leaf volatiles and five-carbon volatiles
Arabidopsis lipoxygenase 2 is essential for formation of green leaf volatiles and five-carbon volatiles
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DOI：
10.1002/1873-3468.12133
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发表时间：
2016-04-01
期刊：
影响因子：
3.5
通讯作者：
Matsui, Kenji
中科院分区：
文献类型：
--
作者：
Mochizuki, Satoshi;Sugimoto, Koichi;Matsui, Kenji
植物生物合成多种生物活性脂质衍生物，如绿色叶挥发物（GLV）和茉莉酸酯（JAs）。在这里，我们确定了一个脂氧合酶2（LOX 2）参与GLV的生物合成在拟南芥中使用突变株系的六个LOX异构体存在于拟南芥。我们发现，五个碳挥发物的形成也依赖于LOX 2。已知LOX 2参与JA的形成;因此，LOX 2在功能上显然是多功能的。这项研究的结果表明，LOX 2活性在完整细胞中受到抑制，但在组织损伤时被激活，以支持在受伤叶片中观察到的快速GLV爆发。
Plants biosynthesize a variety of bioactive lipid derivatives, such as green leaf volatiles (GLVs) and jasmonates (JAs). Here we identify a lipoxygenase 2 (LOX2) involved in GLV biosynthesis in Arabidopsis using mutant lines for each of the six LOX isoforms present in Arabidopsis. We found that formation of five carbon volatiles was also dependent on LOX2. LOX2 is known to be involved in formation of JA; thus, LOX2 is apparently versatile in function. The results in this study suggested that LOX2 activity is suppressed in intact cells but activated upon tissue damage to support the rapid GLV-burst observed in wounded leaves.