Investigating interactions of salicylic acid and jasmonic acid signaling pathways in monocots wheat
Investigating interactions of salicylic acid and jasmonic acid signaling pathways in monocots wheat
复制标题
研究单子叶小麦中水杨酸和茉莉酸信号通路的相互作用
DOI：
10.1016/j.pmpp.2016.01.002
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发表时间：
2016-01-01
影响因子：
2.7
通讯作者：
Zhou, Yang
中科院分区：
文献类型：
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作者：
Ding, Li-Na;Yang, Guo-Xing;Zhou, Yang
在病原体或昆虫攻击时，植物响应产生警报信号水杨酸（SA）和茉莉酸（JA）的特定混合物，其被认为是调节所涉及的信号传导途径的关键参与者。SA和JA反应基因和SA/JA串扰在双子叶植物中已得到很好的表征，但在单子叶植物中却知之甚少。利用qRT-PCR技术，研究了SA和JA处理后单子叶小麦中SA和JA应答基因的表达谱。结果表明，Glu 2和PR-2几乎只对SA有反应，PR-3和LOX 2对茉莉酸甲酯（MeJA）有反应，而脂肪酶和PR-1.1对SA或MeJA有诱导作用。此外，无论是病原菌侵染还是外源激素的施用都可以激活小麦中SA和JA之间的拮抗作用，这在双子叶植物中已经得到了很好的阐明。SA-JA相互作用的结果可能受到每种激素的相对浓度的影响。本研究揭示了小麦SA和JA途径的分子标记基因，为更好地理解它们在单子叶植物中的互作提供了线索。(C)2016爱思唯尔有限公司版权所有
Upon pathogen or insect attack, plants respond with production of a specific blend of the alarm signals salicylic acid (SA) and jasmonic acid (JA), which are recognized as key players in the regulation of the signaling pathways involved. SA and JA responsive genes and SA/JA cross talk were well characterized in dicotyledonous species, but little is known in monocotyledonous plants. Using qRT-PCR, the expression profiles of SA and JA responsive genes were investigated after SA and JA treatments in monocots wheat. The results showed that Glu2 and PR-2 responded almost exclusively to SA, PR-3 and LOX2 responded positively to methyljasmonate (MeJA) treatment, while Lipase and PR-1.1 were induced in response to treatment with SA or MeJA. Furthermore, either by pathogen infection or exogenous application of hormones can activate the antagonistic effect between SA and JA in wheat, which has been well elucidated in dicotyledonous species. The outcomes of SA-JA interactions could be affected by the relative concentration of each hormone. This study shed light on marker genes that can represent SA and JA pathways in wheat and provided some clues for better understanding their interactions in monocot. (C) 2016 Elsevier Ltd. All rights reserved.