Microautophagy in cereal grains: protein storage or degradation?
- Author(s)
- Stefan Plott, Yasin Dagdas, Verena Ibl
- Abstract
Recent research indicates an involvement of microautophagy in the uptake of seed storage proteins (SSPs) into the plant-specific protein storage vacuole (PSV), particularly in cereal grains. However, because microautophagy plays a vital role in cellular homeostasis by degrading and recycling cellular components, we question whether it is a suitable term for a process involved in long-term storage. Additionally, because fission-type microautophagy shares mechanistic similarities with the intraluminal vesicle (ILV) formation of multivesicular bodies (MVBs), we draw parallels between microautophagy and membrane remodeling facilitated by the endosomal sorting complex required for transport (ESCRT). Finally, we propose that the complex structure of cereal endosperm is an optimal tissue to study microautophagy in a plant- and tissue-specific context to decipher its molecular regulation in anabolism and catabolism.
- Organisation(s)
- Functional and Evolutionary Ecology
- External organisation(s)
- Österreichische Akademie der Wissenschaften (ÖAW), Hochschule für Technik und Wirtschaft Dresden – Hochschule für angewandte Wissenschaften
- Journal
- Trends in Plant Science
- Volume
- 30
- Pages
- 736-744
- No. of pages
- 9
- ISSN
- 1360-1385
- DOI
- https://doi.org/10.1016/j.tplants.2024.12.012
- Publication date
- 01-2025
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 106052 Cell biology, 106002 Biochemistry, 106023 Molecular biology, 106008 Botany
- Keywords
- ASJC Scopus subject areas
- Plant Science
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/5390f45d-6f35-45d5-9a15-700d7e38cc0d