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首页> 外文期刊>European Journal of Plant Pathology >The pyruvate decarboxylase 1 (PDC1) gene: negative regulator of disease resistance for Fusarium oxysporum and Verticillium dahliae
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The pyruvate decarboxylase 1 (PDC1) gene: negative regulator of disease resistance for Fusarium oxysporum and Verticillium dahliae

机译：丙酮酸脱羧酶1（PDC1）基因：镰刀菌和黄毛植物的抗病性负调节剂

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摘要

Vascular wilt pathogens, cause serious economic losses in annual crops as well as in woody perennials. Fusarium oxysporum and Verticillium dahliae belong to the most destructive vascular wilt fungi since they have a very broad host range and there is no chemical treatment to control them. Therefore, there is need for the development of novel disease control strategies, based on the understanding of the plant - pathogen interaction. Towards this direction, this study examined the role of the pyruvate decarboxylase encoding genes PDC1 and PDC2 upon V. dahliae and F. oxysporum infection. Less Verticillium and Fusarium wilt symptoms were recorded in the pdc1 mutants compared to wt and pdc2. Quantitative polymerase chain reaction analysis revealed that the decrease in symptom severity shown in pdc1 was associated with reductions in the growth of both pathogens in the vascular tissues of the plants. Furthermore, it was shown that PDC1 was up-regulated upon F. oxysporum and V. dahliae infection in the root and above ground tissues of the wt plants; while PDC2 was mainly suppressed. It is also suggested that the observed pdc1 resistance against F. oxysporum and V. dahliae is the outcome of the activation of the plant defense mechanisms.
机译：血管枯萎病原体，在年度作物以及木质多年生植物中造成严重的经济损失。 Fusarium Oxysporum和Verticillium Dahliae属于最具破坏性的血管枯萎性真菌，因为它们具有非常广泛的主机范围，并且没有化学处理来控制它们。因此，基于对植物 - 病原体相互作用的理解，需要开发新型疾病控制策略。朝向这个方向，研究了丙酮酸脱羧酶编码基因PDC1和PDC2对V.Dahliae和F. oxysporum感染的作用。与WT和PDC2相比，在PDC1突变体中记录了较少的葡萄牙和枯萎病症状。定量聚合酶链反应分析表明，PDC1中显示的症状严重程度降低与植物血管组织中的病原体生长的减少有关。此外，结果表明，在WT植物的根系和地上组织中，PDC1上调了oxysporum和V. dahliae感染;虽然PDC2主要被抑制。还建议观察到对F. Oxysporum和V.Ahliae的抗性的观察到的PDC1抗性是植物防御机制激活的结果。

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