The appressorium at a glance.
The appressorium at a glance.
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DOI：
10.1242/jcs.259857
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发表时间：
2022-07
影响因子：
4
通讯作者：
Lauren S. Ryder;Neftaly Cruz-Mireles;Camilla Molinari;Iris Eisermann;A. Eseola;N. Talbot
中科院分区：
文献类型：
--
作者：
Lauren S. Ryder;Neftaly Cruz-Mireles;Camilla Molinari;Iris Eisermann;A. Eseola;N. Talbot
许多植物病原真菌能够利用一种被称为附着胞的特殊细胞来感染它们的植物宿主。这些结构充当着真菌与宿主之间的通道，允许其进入内部组织。附着胞施加巨大的物理力来冲破植物表面，或者利用一系列酶来消化角质层和植物细胞壁。附着胞还促进在植物感染点效应因子的局部分泌，以抑制植物免疫。这些感染细胞是对叶片表面的物理特性、饥饿胁迫以及来自植物的信号作出反应而发育的。附着胞的形态发生与由 septin介导的F - 肌动蛋白和细胞骨架微管网络的重组以及真菌细胞壁的重塑有关。在这篇《细胞科学概览》以及附带的海报中，我们重点介绍了在我们对附着胞介导的感染机制的理解方面的最新进展，并将叶片表面的发育与病原真菌的侵入性生长生物学进行了比较。最后，我们概述了我们目前在附着胞细胞生物学知识方面的关键空白。
Many plant pathogenic fungi have the capacity to infect their plant hosts using specialised cells called appressoria. These structures act as a gateway between the fungus and host, allowing entry to internal tissues. Appressoria apply enormous physical force to rupture the plant surface, or use a battery of enzymes to digest the cuticle and plant cell wall. Appressoria also facilitate focal secretion of effectors at the point of plant infection to suppress plant immunity. These infection cells develop in response to the physical characteristics of the leaf surface, starvation stress and signals from the plant. Appressorium morphogenesis has been linked to septin-mediated reorganisation of F-actin and microtubule networks of the cytoskeleton, and remodelling of the fungal cell wall. In this Cell Science at a Glance and accompanying poster, we highlight recent advances in our understanding of the mechanisms of appressorium-mediated infection, and compare development on the leaf surface to the biology of invasive growth by pathogenic fungi. Finally, we outline key gaps in our current knowledge of appressorium cell biology.