Regulated Forms of Cell Death in Fungi.

Regulated Forms of Cell Death in Fungi.
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DOI:
10.3389/fmicb.2017.01837
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发表时间:
2017
影响因子:
5.2
通讯作者:
Glass NL
Glass NL
中科院分区:
生物学2区
文献类型:
--
作者:
Gonçalves AP;Heller J;Daskalov A;Videira A;Glass NL

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细胞死亡发生在生命的各个领域。虽然一些细胞由于暴露于外部线索而以不受控制的方式死亡,但其他细胞作为遗传编码的发育程序的一部分以受调节的方式死亡。与其他真核物种一样,真菌会在各种触发因素的作用下经历程序性细胞死亡(PCD)。例如,暴露于外部应力条件可以激活真菌中的PCD途径。钙在细胞外空间、细胞质和细胞内储存细胞器之间的重新分布似乎是这种细胞死亡的关键。PCD也是真菌生命周期的一部分,其中它发生在有性和无性生殖、衰老期间,并且作为与植物病原真菌中的感染相关的发育的一部分。此外,一种称为异核体不相容性(HI)的真菌非自我识别机制也涉及PCD。在HI期间介导PCD的一些分子球员表现出显着的相似性,在后生动物和植物的先天免疫中涉及的主要成分。在这篇综述中,我们讨论了最近的研究真菌PCD机制相比,在后生动物的特点机制。我们强调PCD在真菌中的作用,在响应外源化合物,真菌的发展和非自我识别过程,并讨论确定的细胞内信号通路和调节真菌PCD的分子。
Cell death occurs in all domains of life. While some cells die in an uncontrolled way due to exposure to external cues, other cells die in a regulated manner as part of a genetically encoded developmental program. Like other eukaryotic species, fungi undergo programmed cell death (PCD) in response to various triggers. For example, exposure to external stress conditions can activate PCD pathways in fungi. Calcium redistribution between the extracellular space, the cytoplasm and intracellular storage organelles appears to be pivotal for this kind of cell death. PCD is also part of the fungal life cycle, in which it occurs during sexual and asexual reproduction, aging, and as part of development associated with infection in phytopathogenic fungi. Additionally, a fungal non-self-recognition mechanism termed heterokaryon incompatibility (HI) also involves PCD. Some of the molecular players mediating PCD during HI show remarkable similarities to major constituents involved in innate immunity in metazoans and plants. In this review we discuss recent research on fungal PCD mechanisms in comparison to more characterized mechanisms in metazoans. We highlight the role of PCD in fungi in response to exogenic compounds, fungal development and non-self-recognition processes and discuss identified intracellular signaling pathways and molecules that regulate fungal PCD.
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