Virus infection induces resistance to Pseudomonas syringae and to drought in both compatible and incompatible bacteria–host interactions, which are compromised under conditions of elevated temperature and CO2 levels

Aguilar, Emmanuel; Toro, Francisco J. del; Figueira-Galán, David; Hou, Weina; Canto, Tomás; Tenllado, Francisco

doi:10.1099/jgv.0.001353

Cited by 9 publications

(5 citation statements)

References 56 publications

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“…2008 ; Hily et al. 2016 ; Aguilar et al. 2020 ) and on virus evolution towards mutualism under conditions of abiotic stress for the host ( González et al.…”

Section: Discussionmentioning

confidence: 99%

Metagenomics show high spatiotemporal virus diversity and ecological compartmentalisation: Virus infections of melon,Cucumis melo, crops, and adjacent wild communities

et al. 2022

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Emergence of viral diseases results from novel transmission dynamics between wild and crop plant communities. The bias of studies towards pathogenic viruses of crops has distracted from knowledge of non-antagonistic symbioses in wild plants. Here we implemented a high throughput approach to compare the viromes of melon (Cucumis melo), and wild plants of crop (Crop) and adjacent boundaries (Edge). Each of the 41-plant species examined was infected by at least one virus. The interactions of 104 virus operational taxonomic units (OTUs) with these hosts occurred largely within ecological compartments of either Crop or Edge, Edge having traits of a reservoir community. The positive correlation of virus and plant richness at each site, the tendency for increased specialist host use through seasons, and specialist host use by OTUs observed only in Crop, characterised local-scale patterns of infection. In this study of systematically sampled viromes of a crop and adjacent wild communities most hosts showed no disease symptoms, suggesting non-antagonistic symbioses are common. The coexistence of viruses within species-rich ecological compartments of agro-systems might promote the evolution of a diversity of virus strategies for survival and transmission. These communities, including those suspected as reservoirs, are subject to sporadic changes in assemblages, and so too are the conditions that favour the emergence of disease.

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“…2008 ; Hily et al. 2016 ; Aguilar et al. 2020 ) and on virus evolution towards mutualism under conditions of abiotic stress for the host ( González et al.…”

Section: Discussionmentioning

confidence: 99%

Metagenomics show high spatiotemporal virus diversity and ecological compartmentalisation: Virus infections of melon,Cucumis melo, crops, and adjacent wild communities

et al. 2022

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“…In recent years, it has become increasingly evident that plant–virus interactions are not limited to a simple reaction to pathogen infection and that they can shift from antagonist to mutualistic or beneficial responses to environmental changes 12 , 13 . Viruses can increase the tolerance of plants to drought and cold stress 14 , high soil temperatures 15 , and bacterial pathogens 16 , 17 . V. vinifera cv ‘Bosco’ infected by GRSPaV showed greater tolerance to water stress than virus-free plants 18 .…”

Section: Introductionmentioning

confidence: 99%

Biological and molecular interplay between two viruses and powdery and downy mildews in two grapevine cultivars

et al. 2020

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Grapevine may be affected simultaneously by several pathogens whose complex interplay is largely unknown. We studied the effects of infection by two grapevine viruses on powdery mildew and downy mildew development and the molecular modifications induced in grapevines by their multiple interactions. Grapevine fanleaf virus (GFLV) and grapevine rupestris stem pitting-associated virus (GRSPaV) were transmitted by in vitro-grafting to Vitis vinifera cv Nebbiolo and Chardonnay virus-free plantlets regenerated by somatic embryogenesis. Grapevines were then artificially inoculated in the greenhouse with either Plasmopara viticola or Erysiphe necator spores. GFLV-infected plants showed a reduction in severity of the diseases caused by powdery and downy mildews in comparison to virus-free plants. GFLV induced the overexpression of stilbene synthase genes, pathogenesis-related proteins, and influenced the genes involved in carbohydrate metabolism in grapevine. These transcriptional changes suggest improved innate plant immunity, which makes the GFLV-infected grapevines less susceptible to other biotic attacks. This, however, cannot be extrapolated to GRSPaV as it was unable to promote protection against the fungal/oomycete pathogens. In these multiple interactions, the grapevine genotype seemed to have a crucial role: in ‘Nebbiolo’, the virus-induced molecular changes were different from those observed in ‘Chardonnay’, suggesting that different metabolic pathways may be involved in protection against fungal/oomycete pathogens. These results indicate that complex interactions do exist between grapevine and its different pathogens and represent the first study on a topic that still is largely unexplored.

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“…In a previous work, it was shown that expression of P25 by PPV led to an increase of PPV virulence and to a concomitant drought-tolerant phenotype in parental N. benthamiana plants [ 18 , 30 ]. The expression of the SA-responsive gene pathogenesis-related protein 1 ( PR-1 ), as well as transcript levels of the defense-related genes Hin1 and Hsr203j, were increased at much higher levels in PPV-P25-infected plants compared with plants infected with PPV [ 31 ]. In addition, metabolic and hormonal data further supported an altered physiological status in plants infected with PPV-P25 of more amplitude than the one triggered by PPV infection [ 18 ].…”

Section: Discussionmentioning

confidence: 99%

Transgenerational Tolerance to Salt and Osmotic Stresses Induced by Plant Virus Infection

Hernández-Walias

García

Moreno

et al. 2022

IJMS

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Following pathogen infection, plants have developed diverse mechanisms that direct their immune systems towards more robust induction of defense responses against recurrent environmental stresses. The induced resistances could be inherited by the progenies, rendering them more tolerant to stressful events. Although within-generational induction of tolerance to abiotic stress is a well-documented phenomenon in virus-infected plants, the transgenerational inheritance of tolerance to abiotic stresses in their progenies has not been explored. Here, we show that infection of Nicotiana benthamiana plants by Potato virus X (PVX) and by a chimeric Plum pox virus (PPV) expressing the P25 pathogenicity protein of PVX (PPV-P25), but not by PPV, conferred tolerance to both salt and osmotic stresses to the progeny, which correlated with the level of virulence of the pathogen. This transgenerational tolerance to abiotic stresses in the progeny was partially sustained even if the plants experience a virus-free generation. Moreover, progenies from a Dicer-like3 mutant mimicked the enhanced tolerance to abiotic stress observed in progenies of PVX-infected wild-type plants. This phenotype was shown irrespective of whether Dicer-like3 parents were infected, suggesting the involvement of 24-nt small interfering RNAs in the transgenerational tolerance to abiotic stress induced by virus infection. RNAseq analysis supported the upregulation of genes related to protein folding and response to stress in the progeny of PVX-infected plants. From an environmental point of view, the significance of virus-induced transgenerational tolerance to abiotic stress could be questionable, as its induction was offset by major reproductive costs arising from a detrimental effect on seed production.

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Virus infection induces resistance to Pseudomonas syringae and to drought in both compatible and incompatible bacteria–host interactions, which are compromised under conditions of elevated temperature and CO2 levels

Abstract: Virus infection induces resistance to Pseudomonas syringae and to drought in both compatible and incompatible bacteria-host interactions, which are compromised under conditions of elevated temperature and CO2 levels

Cited by 9 publications

References 56 publications

Metagenomics show high spatiotemporal virus diversity and ecological compartmentalisation: Virus infections of melon,Cucumis melo, crops, and adjacent wild communities

Metagenomics show high spatiotemporal virus diversity and ecological compartmentalisation: Virus infections of melon,Cucumis melo, crops, and adjacent wild communities

Biological and molecular interplay between two viruses and powdery and downy mildews in two grapevine cultivars

Transgenerational Tolerance to Salt and Osmotic Stresses Induced by Plant Virus Infection

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