文献检索文档翻译深度研究
Suppr Zotero 插件Zotero 插件
邀请有礼套餐&价格历史记录

新学期,新优惠

限时优惠:9月1日-9月22日

30天高级会员仅需29元

1天体验卡首发特惠仅需5.99元

了解详情
不再提醒
插件&应用
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
高级版
套餐订阅购买积分包
AI 工具
文献检索文档翻译深度研究
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利:CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2025

米曲霉中的核噬作用是通过自噬体的形成和液泡介导的降解来介导的。

Nucleophagy in Aspergillus oryzae is Mediated by Autophagosome Formation and Vacuole-Mediated Degradation.

机构信息

Department of Biotechnology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-Ku, Tokyo, 113-8657, Japan.

Electron Microscope Section, Technology Advancement Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-Ku, Tokyo, 113-8657, Japan.

出版信息

Curr Microbiol. 2024 Aug 20;81(10):315. doi: 10.1007/s00284-024-03838-y.


DOI:10.1007/s00284-024-03838-y
PMID:39162852
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11335778/
Abstract

We previously reported autophagy-mediated degradation of nuclei, nucleophagy, in the filamentous fungus Aspergillus oryzae. In this study, we examined whether nuclei are degraded as a whole. We generated A. oryzae mutants deleted for orthologs of Saccharomyces cerevisiae YPT7 and ATG15 which are required, respectively, for autophagosome-vacuole fusion and vacuolar degradation of autophagic bodies. Degradation of histone H2B-EGFP under starvation conditions was greatly decreased in the ΔAoypt7 and ΔAoatg15 mutants. Fluorescence and electron microscopic observations showed that autophagosomes and autophagic bodies surrounding the entire nuclei were accumulated in the cytoplasm of ΔAoypt7 and the vacuole of ΔAoatg15, respectively. These results indicate that nuclei are engulfed in the autophagosomes as a whole and transported/released into the vacuolar lumen where they are degraded.

摘要

我们之前曾报道过丝状真菌米曲霉中自噬介导的核降解,即核噬作用。在这项研究中,我们研究了核是否作为一个整体被降解。我们生成了缺失酿酒酵母 YPT7 和 ATG15 同源物的米曲霉突变体,这两个基因分别是自噬体-液泡融合和自噬体空泡降解所必需的。在饥饿条件下,组蛋白 H2B-EGFP 的降解在 ΔAoypt7 和 ΔAoatg15 突变体中大大减少。荧光和电子显微镜观察表明,自噬体和围绕整个核的自噬体分别在 ΔAoypt7 的细胞质中和 ΔAoatg15 的液泡中积累。这些结果表明,核作为一个整体被包裹在自噬体中,并被运输/释放到液泡腔中进行降解。

相似文献

[1]
Nucleophagy in Aspergillus oryzae is Mediated by Autophagosome Formation and Vacuole-Mediated Degradation.

Curr Microbiol. 2024-8-20

[2]
Carbon and nitrogen depletion-induced nucleophagy and selective autophagic sequestration of a whole nucleus in multinucleate cells of the filamentous fungus Aspergillus oryzae.

J Gen Appl Microbiol. 2017-5-12

[3]
Functional analysis of AoAtg11 in selective autophagy in the filamentous fungus Aspergillus oryzae.

Fungal Biol. 2015-7

[4]
Reconstitution reveals Ykt6 as the autophagosomal SNARE in autophagosome-vacuole fusion.

J Cell Biol. 2018-8-10

[5]
Macroautophagy-mediated degradation of whole nuclei in the filamentous fungus Aspergillus oryzae.

PLoS One. 2010-12-20

[6]
Methods to Monitor Nucleophagy in Yeast.

Methods Mol Biol. 2024

[7]
Atg15 in consists of two functionally distinct domains.

Mol Biol Cell. 2021-4-15

[8]
Analysis of autophagy in Aspergillus oryzae by disruption of Aoatg13, Aoatg4, and Aoatg15 genes.

FEMS Microbiol Lett. 2011-1-17

[9]
Vac8 spatially confines autophagosome formation at the vacuole in .

J Cell Sci. 2019-11-14

[10]
Isolation and characterization of Aspergillus oryzae vacuolar protein sorting mutants.

Appl Environ Microbiol. 2005-8

本文引用的文献

[1]
Atg15 is a vacuolar phospholipase that disintegrates organelle membranes.

Cell Rep. 2023-12-26

[2]
The mechanism of Atg15-mediated membrane disruption in autophagy.

J Cell Biol. 2023-12-4

[3]
AeiA is a novel autophagy-related protein that promotes peroxisome degradation by pexophagy in Aspergillus oryzae.

FEBS Lett. 2023-3

[4]
Atg39 binding to the inner nuclear membrane triggers nuclear envelope deformation in piecemeal macronucleophagy.

Autophagy. 2022-12

[5]
Selective autophagy degrades nuclear pore complexes.

Nat Cell Biol. 2020-2-6

[6]
Autophagic degradation of the endoplasmic reticulum.

Proc Jpn Acad Ser B Phys Biol Sci. 2020

[7]
The multi-functional SNARE protein Ykt6 in autophagosomal fusion processes.

Cell Cycle. 2019-3-17

[8]
A novel in vitro assay reveals SNARE topology and the role of Ykt6 in autophagosome fusion with vacuoles.

J Cell Biol. 2018-8-10

[9]
Reconstitution reveals Ykt6 as the autophagosomal SNARE in autophagosome-vacuole fusion.

J Cell Biol. 2018-8-10

[10]
Cleaning House: Selective Autophagy of Organelles.

Dev Cell. 2017-4-10

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

推荐工具

医学文档翻译智能文献检索