Influence of virus–host interactions on plant response to abiotic stress

Rahman, Adeeb; Sinha, Kumari Veena; Sopory, Sudhir K.; Sanan-Mishra, Neeti

doi:10.1007/s00299-021-02718-0

Cited by 14 publications

(4 citation statements)

References 264 publications

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“…Although a direct comparison of the transcriptomes of Arabidopsis plants with high and low viral infections did not reveal differentially expressed genes, ArLV1 did affect drought resilience, putatively via virus-induced reduced stomatal conductance (Pasin et al ., 2020; Manacorda et al ., 2021). Next to the obvious negative impacts on plant morphology, physiology and yield (Prasad et al ., 2020), viruses are also known to affect their host positively in their tolerance to abiotic stress (Gorovits et al ., 2019; Rahman et al ., 2021; Aguilar & Lozano-Duran, 2022). Some viruses even change from parasitic to mutualistic with a change of environmental conditions (González et al ., 2021).…”

Section: Discussionmentioning

confidence: 99%

Arabidopsis latent virus 1, a comovirus widely spread in Arabidopsis thaliana collections

Verhoeven

Kloth

Kupczok

et al. 2022

Preprint

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Transcriptome studies of Illumina RNA-seq datasets of different Arabidopsis thaliana natural accessions and T-DNA mutants revealed the presence of two virus-like RNA sequences which showed the typical two segmented genome characteristics of a comovirus. This comovirus did not induce any visible symptoms in infected Arabidopsis plants cultivated under standard laboratory conditions. Hence it was named Arabidopsis latent virus 1 (ArLV1). Virus infectivity in Arabidopsis plants was confirmed by RT-qPCR, transmission electron microscopy and mechanical inoculation. ArLV1 can also mechanically infect Nicotiana benthamiana, causing distinct mosaic symptoms. A bioinformatics investigation of Arabidopsis RNA-Seq repositories, including nearly 6500 Sequence Read Archives (SRAs) in the NCBI SRA database, revealed the presence of ArLV1 in 25% of all archived natural Arabidopsis accessions and in 8.5% of all analyzed SRAs. ArLV1 could also be detected in Arabidopsis plants collected from the wild. ArLV1 is highly seed-transmissible with up to 40% incidence on the progeny derived from infected Arabidopsis plants. This has likely led to a worldwide distribution in the model plant Arabidopsis with yet unknown effects on plant performance in a substantial number of studies.

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Section: Discussionmentioning

confidence: 99%

Arabidopsis latent virus 1, a comovirus widely spread in Arabidopsis thaliana collections

Verhoeven

Kloth

Kupczok

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Although a direct comparison of the transcriptomes of A. thaliana plants with high and low viral infections did not reveal differentially expressed genes, ArLV1 does seem to have a small but significant positive effect on drought resilience, putatively via virus‐induced reduced stomatal conductance (Pasin et al ., 2020 ; Manacorda et al ., 2021 ). In addition to the obvious negative impacts on plant morphology, physiology and yield (Prasad et al ., 2020 ), viruses are also known to affect their host positively in their tolerance to abiotic stress (Gorovits et al ., 2019 ; Rahman et al ., 2021 ; Aguilar & Lozano‐Duran, 2022 ). Some viruses even change from parasitic to mutualistic with a change in environmental conditions (González et al ., 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Arabidopsis latent virus 1, a comovirus widely spread in Arabidopsis thaliana collections

et al. 2022

View full text Add to dashboard Cite

1) Transcriptome studies of Illumina RNA-seq datasets of different Arabidopsis thaliana natural accessions and T-DNA mutants revealed the presence of two virus-like RNA sequences which showed the typical two segmented genome characteristics of a comovirus.(2) This comovirus did not induce any visible symptoms in infected Arabidopsis plants cultivated under standard laboratory conditions. Hence it was named Arabidopsis latent virus 1 (ArLV1). Virus infectivity in Arabidopsis plants was confirmed by RT-qPCR, transmission electron microscopy and mechanical inoculation. ArLV1 can also mechanically infect Nicotiana benthamiana, causing distinct mosaic symptoms.(3) A bioinformatics investigation of Arabidopsis RNA-Seq repositories, including nearly 6500 Sequence Read Archives (SRAs) in the NCBI SRA database, revealed the presence of ArLV1 in 25% of all archived natural Arabidopsis accessions and in 8.5% of all analyzed SRAs. ArLV1 could also be detected in Arabidopsis plants collected from the wild.(4) ArLV1 is highly seed-transmissible with up to 40% incidence on the progeny derived from infected Arabidopsis plants. This has likely led to a worldwide distribution in the model plant Arabidopsis with yet unknown effects on plant performance in a substantial number of studies.

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“…Figure 1F represents the scenario described in Figure 1E but in the presence of SIGS targeting DCL1/2 and AGO1/2. If SIGS were applied under these circumstances, the dsRNA or siRNA taken up by the fungus may be inactivated (as observed by some plant-VSRs) via direct binding by the myco-VSR or indirectly by the VSR inactivating the DCL, AGO or RdRp (reviewed in Rahman et al, 2021). Due to the lack of research, it is unknown what the outcome would be and whether all mycoviruses (and their encoded VSRs) may have a similar or distinct impact.…”

Section: Scenarios Of Sigs In the Presence Of Mycoviruses In Fungimentioning

confidence: 99%

Mycovirus-encoded suppressors of RNA silencing: Possible allies or enemies in the use of RNAi to control fungal disease in crops

Coy¹,

Plummer²,

Khalifa³

et al. 2022

Front. Fungal Biol.

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Plants, fungi, and many other eukaryotes have evolved an RNA interference (RNAi) mechanism that is key for regulating gene expression and the control of pathogens. RNAi inhibits gene expression, in a sequence-specific manner, by recognizing and deploying cognate double-stranded RNA (dsRNA) either from endogenous sources (e.g. pre-micro RNAs) or exogenous origin (e.g. viruses, dsRNA, or small interfering RNAs, siRNAs). Recent studies have demonstrated that fungal pathogens can transfer siRNAs into plant cells to suppress host immunity and aid infection, in a mechanism termed cross-kingdom RNAi. New technologies, based on RNAi are being developed for crop protection against insect pests, viruses, and more recently against fungal pathogens. One example, is host-induced gene silencing (HIGS), which is a mechanism whereby transgenic plants are modified to produce siRNAs or dsRNAs targeting key transcripts of plants, or their pathogens or pests. An alternative gene regulation strategy that also co-opts the silencing machinery is spray-induced gene silencing (SIGS), in which dsRNAs or single-stranded RNAs (ssRNAs) are applied to target genes within a pathogen or pest. Fungi also use their RNA silencing machinery against mycoviruses (fungal viruses) and mycoviruses can deploy virus-encoded suppressors of RNAi (myco-VSRs) as a counter-defence. We propose that myco-VSRs may impact new dsRNA-based management methods, resulting in unintended outcomes, including suppression of management by HIGS or SIGS. Despite a large diversity of mycoviruses being discovered using high throughput sequencing, their biology is poorly understood. In particular, the prevalence of mycoviruses and the cellular effect of their encoded VSRs are under-appreciated when considering the deployment of HIGS and SIGS strategies. This review focuses on mycoviruses, their VSR activities in fungi, and the implications for control of pathogenic fungi using RNAi.

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Influence of virus–host interactions on plant response to abiotic stress

Cited by 14 publications

References 264 publications

Arabidopsis latent virus 1, a comovirus widely spread in Arabidopsis thaliana collections

Arabidopsis latent virus 1, a comovirus widely spread in Arabidopsis thaliana collections

Arabidopsis latent virus 1, a comovirus widely spread in Arabidopsis thaliana collections

Mycovirus-encoded suppressors of RNA silencing: Possible allies or enemies in the use of RNAi to control fungal disease in crops

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