Submit to Viruses Review for Viruses Propose a Special Issue

Journal Browser

Diversity and Coinfections of Plant or Fungal Viruses

Special Issue Editors
Special Issue Information
Keywords
Published Papers

A special issue of Viruses (ISSN 1999-4915). This special issue belongs to the section "Viruses of Plants, Fungi and Protozoa".

Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 10899

Share This Special Issue

Special Issue Editors

Dr. Ken Komatsu

E-Mail Website
Guest Editor

Laboratory of Plant Pathology, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
Interests: plant pathology; plant virology; molecular biology
Special Issues, Collections and Topics in MDPI journals

Prof. Dr. Hiromitsu Moriyama

E-Mail Website
Guest Editor

Laboratory of Molecular and Cellular Biology, Department of Applied Biological Sciences, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
Interests: plant protection science; applied microbiology; applied molecular cell biology
Special Issues, Collections and Topics in MDPI journals

Dr. Islam Hamim

E-Mail Website
Guest Editor

1. Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh, Bangladesh
2. Laboratory of Plant Pathology, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
Interests: virology; plant pathology; insect/pollinator pathology; plant-microbe interactions; pesticide resistance; biodiversity and ecology of agriculture landscape
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The genetic background of a virus in the infected plant is not uniform. The highly heterogeneous nature of virus populations affects symptom expressions in a host plant. Indeed, a virus isolated from a single plant often exhibits genomic sequence differences within sub-isolates, called quasispecies. Coinfection with another virus also affects symptom expression and virulence. Coinfections of fungal viruses are also very frequent in the field, sometimes even in laboratory conditions. Coinfections among fungal viruses may not be necessarily the consequence of horizontal transmission between homologous fungi capable of anastomosis but instead derived from phylogenetically distinct origins.

Therefore, the goal of this Special issue is to invite respective scientists to submit original research articles, short communications, case studies, and reviews on diversity and coinfections of plant and fungal viruses. The scope of this Special Issue includes:

- Detection, diversity, and biology of viruses that show coinfections or quasispecies nature;

- Mechanisms of altered symptoms or phenotypic changes caused by interaction between different virus species or virus variants;

- Virus emergence, ecology, and evolution

Dr. Ken Komatsu
Dr. Hiromitsu Moriyama
Dr. Islam Hamim
Guest Editors

Manuscript Submission Information

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. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short 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 thoroughly refereed through a single-blind 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.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

diagnosis
surveillance
molecular mechanism
viroid
subviral agents
mycoviruses
biological control
pesticide resistance
antiviral defense mechanism
population genetics
recombination
gene expressions
host range

Published Papers (4 papers)

Download All Papers

Research

Jump to: Other

27 pages, 8463 KiB

Open AccessArticle

Discovery, Genomic Sequence Characterization and Phylogenetic Analysis of Novel RNA Viruses in the Turfgrass Pathogenic Colletotrichum spp. in Japan

by Islam Hamim, Syun-ichi Urayama, Osamu Netsu, Akemi Tanaka, Tsutomu Arie, Hiromitsu Moriyama and Ken Komatsu

Viruses 2022, 14(11), 2572; https://doi.org/10.3390/v14112572 - 20 Nov 2022

Cited by 6 | Viewed by 1912

Abstract

Turfgrass used in various areas of the golf course has been found to present anthracnose disease, which is caused by Colletotrichum spp. To obtain potential biological agents, we identified four novel RNA viruses and obtained full-length viral genomes from turfgrass pathogenic Colletotrichum spp. in Japan. We characterized two novel dsRNA partitiviruses: Colletotrichum associated partitivirus 1 (CaPV1) and Colletotrichum associated partitivirus 2 (CaPV2), as well as two negative single-stranded (ss) RNA viruses: Colletotrichum associated negative-stranded RNA virus 1 (CaNSRV1) and Colletotrichum associated negative-stranded RNA virus 2 (CaNSRV2). Using specific RT-PCR assays, we confirmed the presence of CaPV1, CaPV2 and CaNSRV1 in dsRNAs from original and sub-isolates of Colletotrichum sp. MBCT-264, as well as CaNSRV2 in dsRNAs from original and sub-isolates of Colletotrichum sp. MBCT-288. This is the first time mycoviruses have been discovered in turfgrass pathogenic Colletotrichum spp. in Japan. CaPV1 and CaPV2 are new members of the newly proposed genus “Zetapartitivirus” and genus Alphapartitivirus, respectively, in the family Partitiviridae, according to genomic characterization and phylogenetic analysis. Negative sense ssRNA viruses CaNSRV1 and CaNSRV2, on the other hand, are new members of the family Phenuiviridae and the proposed family “Mycoaspirividae”, respectively. These findings reveal previously unknown RNA virus diversity and evolution in turfgrass pathogenic Colletotrichum spp. Full article

(This article belongs to the Special Issue Diversity and Coinfections of Plant or Fungal Viruses)

► Show Figures

Figure 1

18 pages, 3846 KiB

Open AccessArticle

Narcissus Plants: A Melting Pot of Potyviruses

by Wiwit Probowati, Shusuke Kawakubo and Kazusato Ohshima

Viruses 2022, 14(3), 582; https://doi.org/10.3390/v14030582 - 11 Mar 2022

Cited by 3 | Viewed by 3080

Abstract

Our paper presents detailed evolutionary analyses of narcissus viruses from wild and domesticated Narcissus plants in Japan. Narcissus late season yellows virus (NLSYV) and narcissus degeneration virus (NDV) are major viruses of Narcissus plants, causing serious disease outbreaks in Japan. In this study, we collected Narcissus plants showing mosaic or striped leaves along with asymptomatic plants in Japan for evolutionary analyses. Our findings show that (1) NLSYV is widely distributed, whereas the distribution of NDV is limited to the southwest parts of Japan; (2) the genomes of NLSYV isolates share nucleotide identities of around 82%, whereas those of NDV isolates are around 94%; (3) three novel recombination type patterns were found in NLSYV; (4) NLSYV comprises at least five distinct phylogenetic groups whereas NDV has two; and (5) infection with narcissus viruses often occur as co-infection with different viruses, different isolates of the same virus, and in the presence of quasispecies (mutant clouds) of the same virus in nature. Therefore, the wild and domesticated Narcissus plants in Japan are somewhat like a melting pot of potyviruses and other viruses. Full article

(This article belongs to the Special Issue Diversity and Coinfections of Plant or Fungal Viruses)

► Show Figures

Figure 1

9 pages, 1429 KiB

Open AccessCommunication

Characterization of a Novel Mycovirus from the Phytopathogenic Fungus Botryosphaeria dothidea

by Yanfen Wang, Hang Zhao, Jiayuan Cao, Xinming Yin, Yashuang Guo, Lihua Guo, Haiyan Wu and Meng Zhang

Viruses 2022, 14(2), 331; https://doi.org/10.3390/v14020331 - 6 Feb 2022

Cited by 9 | Viewed by 2294

Abstract

Botryosphaeria dothidea is, globally, one of the most economically important phytopathogenic fungi worldwide, causing the canker and dieback of fruit trees. An increasing number of viruses infecting B. dothidea have lately been reported, several of which could confer hypovirulence. In this study, isolated from strain ZM170285-1 of B. dothidea, a novel double-stranded RNA (dsRNA) mycovirus, tentatively named Botryosphaeria dothidea partitivirus 2 (BdPV2), was identified well. The BdPV2 harbored three dsRNA segments (1–3) with lengths of 1751, 1568, and 1198 bp, which encoded an RNA-dependent RNA polymerase (RdRp), a capsid protein (CP), and a hypothetical protein of unknown function, respectively. BLASTp searches revealed that the predicted protein sequences of dsRNA1 and dsRNA2 had the highest identities (74.95% and 61.01%) with the corresponding dsRNAs of Penicillium stoloniferum virus S (PsV-S), whereas dsRNA3 shared the highest identity (32.95%) with the dsRNA3 of Aspergillus ochraceous virus 1 (AoV1). Phylogenetic analysis indicated that BdPV2 belonged to the Gammapartitivirus genus and Partitiviridae family. To our knowledge, this is the first report of a Gammapartitivirus in B. dothidea. Full article

(This article belongs to the Special Issue Diversity and Coinfections of Plant or Fungal Viruses)

► Show Figures

Figure 1

Other

Jump to: Research

16 pages, 3176 KiB

Open AccessStudy Protocol

The Newly Identified Trichoderma harzianum Partitivirus (ThPV2) Does Not Diminish Spore Production and Biocontrol Activity of Its Host

by Rongqun Wang, Chenchen Liu, Xiliang Jiang, Zhaoyan Tan, Hongrui Li, Shujin Xu, Shuaihu Zhang, Qiaoxia Shang, Holger B. Deising, Sven-Erik Behrens and Beilei Wu

Viruses 2022, 14(7), 1532; https://doi.org/10.3390/v14071532 - 14 Jul 2022

Cited by 8 | Viewed by 2233

Abstract

A new partititvirus isolated from a Trichoderma harzianum strain (T673), collected in China, was characterized and annotated as Trichoderma harzianum partitivirus 2 (ThPV2). The genome of ThPV2 consists of a 1693 bp dsRNA1 encoding a putative RNA-dependent RNA polymerase (RdRp) and a 1458 bp dsRNA2 encoding a hypothetical protein. In comparative studies employing the ThPV2-infected strain (T673) and a strain cured by ribavirin treatment (virus-free strain T673-F), we investigated biological effects of ThPV2 infection. While the growth rate of the virus-infected fungus differed little from that of the cured variant, higher mycelial density, conidiospore, and chlamydospore production were observed in the virus-infected strain T673. Furthermore, both the ThPV2-infected and the cured strain showed growth- and development-promoting activities in cucumber plants. In vitro confrontation tests showed that strains T673 and T673-F inhibited several important fungal pathogens and an oomycete pathogen in a comparable manner. Interestingly, in experiments with cucumber seeds inoculated with Fusarium oxysporum f. sp. cucumerinum, the ThPV2-infected strain T673 showed moderately but statistically significantly improved biocontrol activity when compared with strain T673-F. Our data broaden the spectrum of known mycoviruses and provide relevant information for the development of mycoviruses for agronomic applications. Full article

(This article belongs to the Special Issue Diversity and Coinfections of Plant or Fungal Viruses)

► Show Figures