Plant-to-plant communication triggered by systemin primes anti-herbivore resistance in tomato.
Plant-to-plant communication triggered by systemin primes anti-herbivore resistance in tomato.
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DOI：
10.1038/s41598-017-15481-8
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发表时间：
2017-11-14
影响因子：
4.6
通讯作者：
Corrado G
中科院分区：
文献类型：
--
作者：
Coppola M;Cascone P;Madonna V;Di Lelio I;Esposito F;Avitabile C;Romanelli A;Guerrieri E;Vitiello A;Pennacchio F;Rao R;Corrado G
植物通过在受损组织(局部)和非受损组织(系统)中诱导各种防御机制来主动响应草食。此外，目前被广泛接受的是，植物对植物的通信允许特定的邻居被警告可能到来的胁迫(防御启动)。系统肽是一种促进番茄对草食系统反应的植物多肽激素。这种18-AA多肽还能诱导活性挥发性有机化合物的释放，从而促进番茄与第三营养级别(如捕食者和害虫的寄生蜂)之间的相互作用。在这项工作中，使用基因表达(RNA-Seq和qRT-PCR)、行为和化学方法相结合的方法，我们证明了系统素触发植物的代谢变化，能够在邻近的未被挑战的植物中诱导启动状态。在分子水平上，启动状态主要与模式识别受体、信号酶和转录因子的转录升高有关。与幼稚植物相比，系统素引发的植物对草食性害虫的抗性显著增强，对寄生蜂更具吸引力，并对伤害表现出更强的反应。小肽目前被认为是许多植物过程中的基本信号分子，这项工作将这类分子的下游效应范围扩展到种内植物之间的通讯。
Plants actively respond to herbivory by inducing various defense mechanisms in both damaged (locally) and non-damaged tissues (systemically). In addition, it is currently widely accepted that plant-to-plant communication allows specific neighbors to be warned of likely incoming stress (defense priming). Systemin is a plant peptide hormone promoting the systemic response to herbivory in tomato. This 18-aa peptide is also able to induce the release of bioactive Volatile Organic Compounds, thus also promoting the interaction between the tomato and the third trophic level (e.g. predators and parasitoids of insect pests). In this work, using a combination of gene expression (RNA-Seq and qRT-PCR), behavioral and chemical approaches, we demonstrate that systemin triggers metabolic changes of the plant that are capable of inducing a primed state in neighboring unchallenged plants. At the molecular level, the primed state is mainly associated with an elevated transcription of pattern -recognition receptors, signaling enzymes and transcription factors. Compared to naïve plants, systemin-primed plants were significantly more resistant to herbivorous pests, more attractive to parasitoids and showed an increased response to wounding. Small peptides are nowadays considered fundamental signaling molecules in many plant processes and this work extends the range of downstream effects of this class of molecules to intraspecific plant-to-plant communication.
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影响因子：
2.1
作者：
Coppola M;Corrado G;Coppola V;Cascone P;Martinelli R;Digilio MC;Pennacchio F;Rao R
通讯作者：
Rao R
影响因子：
5.1
作者：
Collinge, M;Boller, T
通讯作者：
Boller, T
影响因子：
3.7
作者：
Alvarez-Venegas, Raul;Al Abdallat, Ayed;Avramova, Zoya
通讯作者：
Avramova, Zoya
影响因子：
2.3
作者：
Corrado, G.;Sasso, R.;Rao, R.
通讯作者：
Rao, R.
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影响因子：
14.9
作者：
Du Z;Zhou X;Ling Y;Zhang Z;Su Z
通讯作者：
Su Z