Reprogramming a maize plant: transcriptional and metabolic changes induced by the fungal biotroph Ustilago maydis
Reprogramming a maize plant: transcriptional and metabolic changes induced by the fungal biotroph Ustilago maydis
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DOI：
10.1111/j.1365-313x.2008.03590.x
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发表时间：
2008-10-01
期刊：
影响因子：
7.2
通讯作者：
Kaemper, Joerg
中科院分区：
文献类型：
--
作者：
Doehlemann, Gunther;Wahl, Ramon;Kaemper, Joerg
玉米黑粉菌（Ustilago maydis）与其寄主玉米（Zea mays）之间存在着生物营养关系。这种疾病的特征是大型植物肿瘤，其中发生真菌增殖。以前的研究表明，经典的防御途径没有被激活。共聚焦显微镜，全球表达谱和代谢谱现在表明，U。梅迪斯在早期被识别出来，并引发防御反应。这些早期反应基因中的许多在稍后的时间点被下调，而与细胞死亡的抑制相关的几个基因被诱导。真菌和寄主之间的相互作用涉及激素信号的变化，诱导抗氧化剂和次生代谢，以及防止源叶建立。我们的数据提供了新的见解的生物营养相互作用的复杂性。
The fungal pathogen Ustilago maydis establishes a biotrophic relationship with its host plant maize (Zea mays). Hallmarks of the disease are large plant tumours in which fungal proliferation occurs. Previous studies suggested that classical defence pathways are not activated. Confocal microscopy, global expression profiling and metabolic profiling now shows that U. maydis is recognized early and triggers defence responses. Many of these early response genes are downregulated at later time points, whereas several genes associated with suppression of cell death are induced. The interplay between fungus and host involves changes in hormone signalling, induction of antioxidant and secondary metabolism, as well as the prevention of source leaf establishment. Our data provide novel insights into the complexity of a biotrophic interaction.