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首页> 外文期刊>International Journal of Molecular Sciences >Plant Core Environmental Stress Response Genes Are Systemically Coordinated during Abiotic Stresses
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Plant Core Environmental Stress Response Genes Are Systemically Coordinated during Abiotic Stresses

机译：植物核心环境胁迫响应基因在非生物胁迫过程中得到系统协调。

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Studying plant stress responses is an important issue in a world threatened by global warming. Unfortunately, comparative analyses are hampered by varying experimental setups. In contrast, the AtGenExpress abiotic stress experiment displays intercomparability. Importantly, six of the nine stresses (wounding, genotoxic, oxidative, UV-B light, osmotic and salt) can be examined for their capacity to generate systemic signals between the shoot and root, which might be essential to regain homeostasis in Arabidopsis thaliana. We classified the systemic responses into two groups: genes that are regulated in the non-treated tissue only are defined as type I responsive and, accordingly, genes that react in both tissues are termed type II responsive. Analysis of type I and II systemic responses suggest distinct functionalities, but also significant overlap between different stresses. Comparison with salicylic acid (SA) and methyl-jasmonate (MeJA) responsive genes implies that MeJA is involved in the systemic stress response. Certain genes are predominantly responding in only one of the categories, e.g., WRKY genes respond mainly non-systemically. Instead, genes of the plant core environmental stress response (PCESR), e.g., ZAT10, ZAT12, ERD9 or MES9, are part of different response types. Moreover, several PCESR genes switch between the categories in a stress-specific manner.
机译：在全球变暖威胁的世界中，研究植物的胁迫反应是一个重要的问题。不幸的是，比较分析因各种实验设置而受阻。相比之下，AtGenExpress非生物胁迫实验显示出可比性。重要的是，可以检查九种胁迫中的六种（创伤，遗传毒性，氧化，UV-B光，渗透和盐分）在芽和根之间产生系统信号的能力，这对于恢复拟南芥中的稳态是必不可少的。我们将全身反应分为两类：仅在未经处理的组织中调节的基因被定义为I型反应，因此，在两种组织中反应的基因被称为II型反应。对I型和II型全身反应的分析表明，它们具有不同的功能，但不同的应力之间也存在明显的重叠。与水杨酸（SA）和茉莉酸甲酯（MeJA）响应基因的比较表明，MeJA参与了系统性应激反应。某些基因仅在一种类别中主要应答，例如，WRKY基因主要非系统性应答。取而代之的是，植物核心环境胁迫应答（PCESR）的基因，例如ZAT10，ZAT12，ERD9或MES9，是不同应答类型的一部分。此外，几个PCESR基因以压力特异性方式在类别之间切换。

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