Heimerl, Thomas and Flechsler, Jennifer and Pickl, Carolin and Heinz, Veronika and Salecker, Benjamin and Zweck, Josef and Wanner, Gerhard and Geimer, Stefan and Samson, Rachel Y. and Bell, Stephen D. and Huber, Harald and Wirth, Reinhard and Wurch, Louie and Podar, Mircea and Rachel, Reinhard (2017) A Complex Endomembrane System in the Archaeon Ignicoccus hospitalis Tapped by Nanoarchaeum equitans. FRONTIERS IN MICROBIOLOGY, 8: 1072. ISSN 1664-302X,
Full text not available from this repository. (Request a copy)Abstract
Based on serial sectioning, focused ion beam scanning electron microscopy (FIB/SEM), and electron tomography, we depict in detail the highly unusual anatomy of the marine hyperthermophilic crenarchaeon, Ignicoccus hospitalis. Our data support a complex and dynamic endomembrane system consisting of cytoplasmic protrusions, and with secretory function. Moreover, we reveal that the cytoplasm of the putative archaeal ectoparasite Nanoarchaeum equitans can get in direct contact with this endomembrane system, complementing and explaining recent proteomic, transcriptomic and metabolomic data on this inter-archaeal relationship. In addition, we identified a matrix of filamentous structures and/or tethers in the voluminous inter-membrane compartment (IMC) of I. hospitalis, which might be responsible for membrane dynamics. Overall, this unusual cellular compartmentalization, ultrastructure and dynamics in an archaeon that belongs to the recently proposed TACK superphylum prompts speculation that the eukaryotic endomembrane system might originate from Archaea.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CELL-DIVISION; OUTER-MEMBRANE; HYPERTHERMOPHILIC ARCHAEA; ELECTRON-MICROSCOPY; FUMARATE REDUCTASE; SP-NOV; ORIGIN; EUKARYOTES; LIFE; ULTRASTRUCTURE; Archaea; ultrastructure; 3D; eukaryogenesis; FIB/SEM; electron tomography; symbiosis; membranes |
| Subjects: | 500 Science > 530 Physics 500 Science > 570 Life sciences |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Josef Zweck Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie > Prof. Dr. Reinhard Wirth Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie > Prof. Dr. Reinhard Rachel |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:10 |
| Last Modified: | 21 Feb 2019 13:03 |
| URI: | https://pred.uni-regensburg.de/id/eprint/699 |
Actions (login required)
 |
View Item |
