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首页> 外文期刊>Plant Omics >Overlapping sets of transcripts from host and non-host interactions of tomato are expressed early during non-host resistance
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Overlapping sets of transcripts from host and non-host interactions of tomato are expressed early during non-host resistance

机译：在非寄主抗性过程中，早期表达了来自番茄的寄主和非寄主相互作用的重叠转录本

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Natural immunity present in all the plants against most of the pathogens is called as non-host resistance (NHR). Although NHR is most durable form of resistance, it was less studied compared to other forms of resistance. We compared transcriptional changes in tomato during non-host (Magnaporthe grisea) and compatible (Alternaria alternata f. sp. lycopersici) interactions using Agilent microarray GeneChip containing ~44,000 probe sets. The experiment was designed to understand the early and late responses of tomato leaves inoculated with non-host and compatible pathogens. Microarray data revealed that the expression profiles in the non-host and compatible interactions at 6 h post inoculation (hpi) and 24 hpi largely overlapped indicating? that a set of genes are activated during plant-pathogen interaction. However, these genes were expressed much earlier in NHR compared to a compatible interaction. NHR is, therefore, an accelerated and amplified basal defense response. Transcripts involved in energy production (carbohydrate metabolism and photosynthesis) were down-regulated, whereas transcripts associated with catabolic processes (starch and sucrose hydrolysis) were up-regulated in both the interactions at 6 and 24 hpi. We have also identified that the pathway involved in synthesis of volatile compounds like 2-phenylethanol was induced during NHR in tomato. This is the first report of transcriptome profile in tomato during non-host interactions against M. grisea.Pages 19-27 |
机译：所有植物中针对大多数病原体的天然免疫力称为非宿主抗性（NHR）。尽管NHR是最持久的抗药性形式，但与其他抗药性形式相比，研究较少。我们使用包含约44,000个探针的安捷伦微阵列GeneChip比较了非寄主（Magnaporthe grisea）和兼容（Alternaria alternata f。sp。lycopersici）相互作用期间番茄的转录变化。设计该实验旨在了解接种非寄主和相容病原体的番茄叶片的早期和晚期反应。基因芯片数据显示，在接种后6 h（hpi）和24 hpi的非宿主和兼容相互作用中的表达谱在很大程度上重叠，表明？植物-病原体相互作用过程中激活了一组基因。但是，与兼容的相互作用相比，这些基因在NHR中的表达要早得多。因此，NHR是一种加速和增强的基础防御反应。参与能量生产（碳水化合物代谢和光合作用）的转录本被下调，而与分解代谢过程（淀粉和蔗糖水解）相关的转录本在6和24 hpi的相互作用中均被上调。我们还发现在番茄NHR期间诱导了涉及挥发性化合物（如2-苯基乙醇）合成的途径。这是第一个针对番茄的非宿主互作过程中番茄转录组谱的报道。第19-27页|

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