Chemicals to induce plastid signals in Arabidopsis seedlings
Chemicals to induce plastid signals in Arabidopsis seedlings
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DOI：
10.1080/11263504.2013.870936
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发表时间：
2015-09
期刊：
影响因子：
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通讯作者：
Z.-W. Zhang;F. Wu;J. Cheng;M. Yuan;Y.-E. Chen;D.-W. Zhang;F. Zhu;S. Yuan
中科院分区：
文献类型：
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作者：
Z.-W. Zhang;F. Wu;J. Cheng;M. Yuan;Y.-E. Chen;D.-W. Zhang;F. Zhu;S. Yuan
摘要四吡咯和脱落酸（阿坝）被认为是植物细胞的质体信号分子。然而，它们引起了激烈的争议。高水平的糖也触发质体信号来调节核基因表达。然而，糖的有效浓度极高（四吡咯的100- 10，000倍）。为了解决这些争议和矛盾，我们调查了哪些化学物质在什么浓度下可能作为质体信号分子，并总结了它们的共同化学结构。我们发现它们可以分为两类：（1）四吡咯类或其他碳氮杂环类化合物，其信号作用顺序为：Mg-原卟啉IX/阿坝> Fe-原卟啉IX> Zn-原卟啉IX>原卟啉IX>色氨酸>组氨酸。具有螯合金属离子的环的完整性对质体信号传导刺激的有效性具有积极影响。(2)糖或其他碳氧（硫）五元或六元环化合物，如环己烷和噻吩。第二类信号分子的有效浓度非常高（对于单糖约为400 mM）。这两类信号分子可能被质体中不同的受体所感知。
Abstract Tetrapyrroles and abscisic acid (ABA) were considered as plastid signal molecules for plant cells. However, they attract hot controversies. High levels of sugars also trigger plastid signals to regulate nuclear gene expression. However, the effective concentrations of sugar are extremely high (100–10,000 times of tetrapyrroles). To resolve these controversies and inconsistencies, we investigated which chemicals at what concentrations may work as plastid signal molecules, and summarize their common chemical structures. We found that they can be classified into two categories: (1) tetrapyrroles or other carbon–nitrogen heterocyclic compounds with an adjacent three-membered ring (two of them may be incomplete), with a signaling impact order: Mg–protoporphyrin IX/ABA>Fe–protoporphyrin IX>Zn–protoporphyrin IX>protoporphyrin IX>tryptophan>histidine. The completeness of the rings with a chelated metal ion has a positive effect on the effectiveness of plastid signaling stimulation. (2) Sugar or other carbon–oxygen (sulfur) five- or six-membered ring compounds, such as cyclohexane and thiophene. The effective concentrations of the second category of signal molecules are very high (about 400 mM for the monosaccharide). The two types of signal molecules are possibly perceived by different receptors in the plastid.