Special Issue "Electron Microscopy in Virus Diagnostics and Research"
A special issue of Viruses (ISSN 1999-4915).
Deadline for manuscript submissions: 30 April 2014
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are refereed through a peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Viruses is an international peer-reviewed Open Access monthly journal published by MDPI.
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Ultrastructural Characterization of Avian Influenza A (H7N9) Virus Infecting Humans in China
Authors: Rongbao Gao†, Jingdong Song†, Ye Zhang, Shumei Zou, Tian Bai, Xiaodan Li, Jianguo Qu, Jianfang Zhou, Tao Hung, Yuelong Shu*
Affiliation: National Institute for Viral Disease Control and Prevention, China CDC, Key Laboratory for Medical Virology, National Health and Family Planning Commission. State Key Laboratory for Infectious Disease Prevention and Control. Beijing China, 102206
† These authors contribute equally
* Correspondent author to 155 Changbai Road Changping Ditrict, Beijing, 102206, PR China. Tel: 86-010-63580764. Fax: 86-010-63580764. E-mail: firstname.lastname@example.org;
Disclaimers: The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of National Institute for Viral Disease Control and Prevention, China CDC.
Abstract: We examined the ultrastructure of the 2013 novel H7N9 avian virus isolates that caused human infection in China. Similar morphological features previously described for influenza viruses were found in infected cells. Distinguishing findings included dense tubular structures and also a sieve-like structure found in cytoplasm and/or nuclei of pneumocytes in this study.
Title: Evaluation of Virus Inactivation by Formaldehyde to Support Biosafety of Diagnostic Electron Microscopy
Authors: Möller, L.1; Hanisch, M. 2; Kurth, A. 4; Nitsche, A. 3; Schwebke, I. 2; Laue, M. 1
Affiliations: 1Advanced Light and Electron Microscopy (ZBS 4)
2Hospital Hygiene, Infection Prevention and Control (FG 14)
3Highly Pathogenic Viruses (ZBS 1)
4Biosafety Level 4 Laboratory (ZBS 5)
Robert Koch Institute, D-13353 Berlin, Germany
Abstract: Formaldehyde (FA) inactivation of infectious agents is well established in the field of diagnostic electron microscopy of viruses. However, published experimental data that directly prove inactivation by the procedures used are lacking. Usually, inactivation is performed more or less directly before preparation of the samples for microscopy is taking place. The process must transform viruses in a non-infectious but structurally intact form to allow a proper diagnosis based on morphology. FA provides an essential advantage in comparison to other disinfectants, because it preserves the ultrastructure of biological material without interfering significantly with the preparation protocol (i.e. the negative staining). To check the efficiency of FA inactivation we have used vaccinia virus, adenovirus and murine norovirus as models and treated them with different protocols using formaldehyde. Critical factors for the inactivation efficiency were concentration of the FA, duration and temperature of the treatment as well as the complexity of the virus. Our results show that inactivation at low temperature (4 to 8°C) is not sufficient regardless of its duration and that increasing the temperature (up to 37° C) is completing and shortening the inactivation process which improves both biosafety and speed of diagnostic electron microscopy.
Title: Membranous Replication Factories Induced by Plus-strand RNA Viruses
Authors: Inés Romero-Brey and Ralf Bartenschlager
Affiliation: Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
Abstract: In this review we summarize the current knowledge about the membranous replication organelles of members of the family Flaviviridae. Electron tomography studies of cells infected with viruses belonging to the genus Flavivirus revealed the formation of ER membrane invaginations. However Hepatitis C Virus -genus Hepacivirus- induces the formation of double membrane vesicles (DMVs), which are extrusions also originating from ER membranes. DMVs are not only the hallmark of HCV infection, but also induced by other (+) strand RNA viruses like coronaviruses, arteriviruses, picornaviruses and caliciviruses, indicating that these distantly related viruses might utilize common host cell pathways for replication.
Last update: 6 February 2014