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The cuticle: Not only a barrier for plant defence

机译:表皮:不仅是植物防御的障碍

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摘要

The cuticle is a physical barrier that prevents water loss and protects against irradiation, xenobiotics and pathogens. This classic textbook statement has recently been revisited and several observations were made showing that this dogma falls short of being universally true. Both transgenic Arabidopsis thaliana lines expressing cell wall-targeted fungal cutinase (so-called CUTE plants) or lipase as well as several A. thaliana mutants with altered cuticular structure remained free of symptoms after an inoculation with Botrytis cinerea. The alterations in cuticular structure lead to the release of fungitoxic substances and changes in gene expression that form a multifactorial defence response. Several models to explain this syndrome are discussed.
机译:角质层是一种物理屏障,可防止水分流失,并防止辐射,异源生物和病原体。最近重新审视了这一经典教科书声明,并进行了一些观察表明,这种教条没有普遍适用。接种灰葡萄孢后,两种表达细胞壁的真菌角质酶(所谓的CUTE植物)或脂肪酶的转基因拟南芥品系以及几种表皮结构改变的拟南芥突变体均保持无症状。表皮结构的改变导致真菌毒性物质的释放和基因表达的变化,从而形成多因素防御反应。讨论了几种解释该综合征的模型。

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