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Advances in Plant Virus Diseases and Virus-Induced Resistance

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A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 25 April 2024 | Viewed by 2172

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Special Issue Editors

Dr. Pedro Martínez-Gómez

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Guest Editor

CEBAS-CSIC, Centro de Edafología y Biología Aplicada del Segura, Department of Plant Breeding, 30100 Murcia, Spain
Interests: Prunus breeding; marker-assisted selection; integrating genetic; genomic; transcriptomic; proteomic and epigenetic approaches
Special Issues, Collections and Topics in MDPI journals

Prof. Dr. Muqing Zhang

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Guest Editor

Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning 530004, China
Interests: plant biology; sugarcane; plant molecular biology

Special Issue Information

Dear Colleagues,

Plants are affected by numerous viruses and viroids linked to the vegetative propagation practices in many cultivated species and the rapid virus transmission by natural vectors. This Special Issue deals with recent advances and perspectives in the study of viruses and viroids that affect plant species, mainly with regard to the detection and characterization of the viruses and viroids involved, their transmission, the analysis of the pathogenicity, and the search for novel genetic control tools. For one thing, new sequencing technologies are rapidly reshaping the way in which we can identify and characterize new virus and viroid isolates. In addition, specific efforts aimed at the identification of new viruses and viroids and the analysis of data from massive plant sequencing can reveal the presence of these and new or known pathogens. These technologies have also been used to deepen the knowledge on pathogenicity mechanisms at the level of gene expression and miRNA that underlie the interactions between plants and their main viruses and viroids. More recently, the epigenetic regulation of this response has also been addressed. Recently developed biotechnological control tools include the transfer of resistance through grafting, the use of new sources of resistance, and the development of gene silencing strategies through genetic transformation or CRISPR-type gene editing. Furthermore, the application of next-generation sequencing offers new opportunities for the in-depth characterization of viromes from different plant species. In addition, these novel genome editing techniques will contribute to improving our knowledge on virus–host interactions and resistance mechanisms. This global omic perspective will be analyzed and discussed in this Special Issue, which highlights the main implications of this recent development for the analysis of the plant virus diseases and the virus-induced resistance.

Dr. Pedro Martínez-Gómez
Prof. Dr. Muqing Zhang
Guest Editors

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Keywords

virus detection
virus characterization
virus resistance
gene silencing
epigenetic regulation

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15 pages, 2977 KiB

Open AccessArticle

Molecular Characterization and Pathogenicity of an Infectious cDNA Clone of Youcai Mosaic Virus on Solanum nigrum

by Tianxiao Gu, Chenwei Feng, Yanhong Hua, Duxuan Liu, Haoyu Chen, Zhen He, Kai Xu and Kun Zhang

Int. J. Mol. Sci. 2024, 25(3), 1620; https://doi.org/10.3390/ijms25031620 - 28 Jan 2024

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Abstract

Virus infections cause devastative economic losses for various plant species, and early diagnosis and prevention are the most effective strategies to avoid the losses. Exploring virus genomic evolution and constructing virus infectious cDNA clones is essential to achieve a deeper understanding of the interaction between host plant and virus. Therefore, this work aims to guide people to better prevent, control, and utilize the youcai mosaic virus (YoMV). Here, the YoMV was found to infect the Solanum nigrum under natural conditions. Then, an infectious cDNA clone of YoMV was successfully constructed using triple-shuttling vector-based yeast recombination. Furthermore, we established phylogenetic trees based on the complete genomic sequences, the replicase gene, movement protein gene, and coat protein gene using the corresponding deposited sequences in NCBI. Simultaneously, the evolutionary relationship of the YoMV discovered on S. nigrum to others was determined and analyzed. Moreover, the constructed cDNA infectious clone of YoMV from S. nigrum could systematically infect the Nicotiana benthamiana and S. nigrum by agrobacterium-mediated infiltration. Our investigation supplied a reverse genetic tool for YoMV study, which will also contribute to in-depth study and profound understanding of the interaction between YoMV and host plant. Full article

(This article belongs to the Special Issue Advances in Plant Virus Diseases and Virus-Induced Resistance)

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19 pages, 4715 KiB

Open AccessArticle

Transcriptome and Metabolome Analyses Reveal That Jasmonic Acids May Facilitate the Infection of Cucumber Green Mottle Mosaic Virus in Bottle Gourd

by Zhenggang Li, Yafei Tang, Guobing Lan, Lin Yu, Shanwen Ding, Xiaoman She and Zifu He

Int. J. Mol. Sci. 2023, 24(23), 16566; https://doi.org/10.3390/ijms242316566 - 21 Nov 2023

Viewed by 933

Abstract

Cucumber green mottle mosaic virus (CGMMV) is a typical seed-borne tobamovirus that mainly infects cucurbit crops. Due to the rapid growth of international trade, CGMMV has spread worldwide and become a significant threat to cucurbit industry. Despite various studies focusing on the interaction between CGMMV and host plants, the molecular mechanism of CGMMV infection is still unclear. In this study, we utilized transcriptome and metabolome analyses to investigate the antiviral response of bottle gourd (Lagenaria siceraria) under CGMMV stress. The transcriptome analysis revealed that in comparison to mock-inoculated bottle gourd, 1929 differently expressed genes (DEGs) were identified in CGMMV-inoculated bottle gourd. Among them, 1397 genes were upregulated while 532 genes were downregulated. KEGG pathway enrichment indicated that the DEGs were mainly involved in pathways including the metabolic pathway, the biosynthesis of secondary metabolites, plant hormone signal transduction, plant–pathogen interaction, and starch and sucrose metabolism. The metabolome result showed that there were 76 differentially accumulated metabolites (DAMs), of which 69 metabolites were up-accumulated, and 7 metabolites were down-accumulated. These DAMs were clustered into several pathways, including biosynthesis of secondary metabolites, tyrosine metabolism, flavonoid biosynthesis, carbon metabolism, and plant hormone signal transduction. Combining the transcriptome and metabolome results, the genes and metabolites involved in the jasmonic acid and its derivatives (JAs) synthesis pathway were significantly induced upon CGMMV infection. The silencing of the allene oxide synthase (AOS) gene, which is the key gene involved in JAs synthesis, reduced CGMMV accumulation. These findings suggest that JAs may facilitate CGMMV infection in bottle gourd. Full article

(This article belongs to the Special Issue Advances in Plant Virus Diseases and Virus-Induced Resistance)

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