Climate change and plant virus epidemiology

Trębicki, Piotr

doi:10.1016/j.virusres.2020.198059

Cited by 116 publications

(77 citation statements)

References 88 publications

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“…To date, most of the research regarding the impact of climate change on plant-insect-pathogen interactions has been conducted on a single climate or atmospheric variable, mainly either temperature or CO 2 [13,14,47,48,66]. However, to create representative conditions of future climate, research approaches should include the responses of multitrophic systems to climate variables that will occur simultaneously [17,27,45]. To our knowledge, this is the first empirical study describing the interactions between wheat and its economically important aphid pest and viral pathogen under combined eCO 2 and eT.…”

Section: Discussionmentioning

confidence: 99%

“…Insect herbivores are affected by climate and atmospheric factors, principally temperature [9], but also CO 2 , ultraviolet radiation, or rainfall, which will influence their development, survival, range, and abundance [3,10]. The incidence and severity of plant viruses are also affected by climate change due to mediated effects on plants and their insect vectors [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…To generate more realistic conclusions about how climate change affects multi-trophic interactions, research need to consider changes in different climate and atmospheric variables as a whole, as these factors will occur simultaneously in the future [2,41,44,45]. Singling out any particular variables of the future climate and applying then separately (either eCO 2 or temperature) on a complex biological system can lead to false conclusions of the future interactions [17]. However, to date, most of the studies on climate change affecting plant-insect-pathogen interactions have been conducted under one single abiotic factor (mainly either CO 2 or temperature), as examined above [13,14,[46][47][48].…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Increase in CO2 and Temperature Alters Wheat Growth and Aphid Performance Differently Depending on Virus Infection

Moreno-Delafuente

Viñuela

Fereres

et al. 2020

Insects

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Climate change impacts crop production, pest and disease pressure, yield stability, and, therefore, food security. In order to understand how climate and atmospheric change factors affect trophic interactions in agriculture, we evaluated the combined effect of elevated carbon dioxide (CO2) and temperature on the interactions among wheat (Triticum aestivum L.), Barley yellow dwarf virus species PAV (BYDV-PAV) and its vector, the bird cherry-oat aphid (Rhopalosiphum padi L.). Plant traits and aphid biological parameters were examined under two climate and atmospheric scenarios, current (ambient CO2 and temperature = 400 ppm and 20 °C), and future predicted (elevated CO2 and temperature = 800 ppm and 22 °C), on non-infected and BYDV-PAV-infected plants. Our results show that combined elevated CO2 and temperature increased plant growth, biomass, and carbon to nitrogen (C:N) ratio, which in turn significantly decreased aphid fecundity and development time. However, virus infection reduced chlorophyll content, biomass, wheat growth and C:N ratio, significantly increased R. padi fecundity and development time. Regardless of virus infection, aphid growth rates remained unchanged under simulated future conditions. Therefore, as R. padi is currently a principal pest in temperate cereal crops worldwide, mainly due to its role as a plant virus vector, it will likely continue to have significant economic importance. Furthermore, an earlier and more distinct virus symptomatology was highlighted under the future predicted scenario, with consequences on virus transmission, disease epidemiology and, thus, wheat yield and quality. These research findings emphasize the complexity of plant–vector–virus interactions expected under future climate and their implications for plant disease and pest incidence in food crops.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simultaneous Increase in CO2 and Temperature Alters Wheat Growth and Aphid Performance Differently Depending on Virus Infection

Moreno-Delafuente

Viñuela

Fereres

et al. 2020

Insects

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“…Ongoing global warming is expected to increase the incidence of plant pests 12,35,36 . At the same time, accumulating evidence shows that plant viral diseases frequently contain mixed strain infections with a high prevalence in plant crops.…”

Section: Discussionmentioning

confidence: 99%

“…The emergence and spread of infectious viral diseases is driven by intrinsic viral and host factors, in addition to ecological, agronomical and socioeconomical factors [6][7][8][9] . Climate change is likely to increase the frequency of emerging viral diseases in plant crops [10][11][12] . Warming and highly variable climate may directly and indirectly affect host, vector, and viral traits, and further influence viral epidemics both in cultivated and wild plants.…”

Section: Introductionmentioning

confidence: 99%

Increasing growth temperature alters the within-host competition of viral strains and influences virus genetic variation

Alcaide

Sardanyés

Elena

et al. 2020

Preprint

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AbstractThe emergence of viral diseases in plant crops hamper the sustainability of food production, and this may be boosted by global warming. Concurrently, mixed viral infections are becoming common in plants, of which epidemiology are unpredictable due to within-host virus-virus interactions. However, the extent in which the combined effect of variations in the abiotic components of the plant ecological niche (e.g., temperature) and the prevalence of mixed infections (i.e., within-host interactions among viruses) affect the evolutionary dynamics of viral populations is not well understood. Here, we explore the interplay between ecological and evolutionary factors during viral infections, and show that two individual strains of pepino mosaic virus (PepMV) coexisted in a temperature-dependent continuum between neutral and antagonistic interactions in tomato plants. After a long-term infection, the mutational analysis of the evolved viral genomes revealed strain-specific single-nucleotide polymorphisms that were modulated by the interaction between the type of infection and temperature. Mathematical modeling allowed us to asses a thermal reaction norm for both strains, which indicated that viral replication rates were increased along with increasing temperature in mixed infections, with a remarkable strain-dependent effect. These results suggest that the growth temperature is an ecological driver of virus-virus interactions, with an effect on the genetic diversity of individual viruses co-infecting a host. This research provides insights into the effect that climate change will have on the evolutionary dynamics of viral populations.

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