Advanced infections by cucurbit yellow stunting disorder virus encourage whitefly vector colonization while discouraging non-vector aphid competitors

Chesnais, Quentin; Sun, Penglin; Mauck, Kerry E.

doi:10.1007/s10340-021-01394-z

Cited by 11 publications

(14 citation statements)

References 67 publications

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“…The net reproductive rate, intrinsic rate of increase, and nite rate of increase of B. tabaci fed on colonized plants were also signi cantly lower than that fed on non-colonized control plants. In addition, the population parameters are consistent with those in the study of B. bassiana, Citrus limon and Diaphorina citri(Aguila et al 2022).EPG is a relatively mature behavioral test technique for piercing-sucking insects and has been widely used to analyze the feeding behavior of B. tabaci (Chesnais et al 2022;Du et al 2022…”

supporting

confidence: 74%

Endophytic colonization of tomato by Beauveria bassiana decreased fitness and altered feeding behavior of whitefly Bemisia tabaci

Wang

Yuan

Yan

et al. 2023

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Whitefly Bemisia tabaci is a polyphagous super pest, which causes serious threat to agricultural production globally. Beauveria bassiana, as entomopathogenic fungi (EPF), can not only directly kill a variety of pests, but also inhibit the occurrence of pests as fungal endophytes within plants. In this study, we explored how the introduction of B. bassiana as endophytes into tomatoes (Solanum lycopersicum) affected the fitness and feeding behavior of whitefly. The result showed that there was significant difference in the fertility of B. tabaci on tomatoes treated with B. bassiana by root irrigation, B. bassiana by local leaf spray, and 0.05% Tween 80 solution, among which the number of eggs laid was the lowest on tomatoes treated with B. bassiana by root irrigation. Furthermore, B. tabaci fed on tomatoes treated with EPF by root irrigation showed significantly higher mortality rate in each stage than control plants with 0.05% Tween 80, by constructing the age-stage, two-sex life table. In addition, the intrinsic rate of increase (r), the finite rate of increase (λ) and the net reproductive rate (R0) of B. tabaci population on tomatoes treated with EPF by root irrigation were all significantly lower than control. Moreover, tomatoes treated by root irrigation had a significant negative effect on the feeding behavior of B. tabaci, by shortening the watery salivation and phloem ingestion. Our results indicated that B. bassiana effectively inhibited the occurrence of whitefly as endophytes. These findings enhanced our understanding about the inhibition of endophytic EPF on pests.

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confidence: 74%

Endophytic colonization of tomato by Beauveria bassiana decreased fitness and altered feeding behavior of whitefly Bemisia tabaci

Wang

Yuan

Yan

et al. 2023

Preprint

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“…This is probably an effect of reduced nutritional properties caused by PYVV infection, which could also explain why nymphs fed on plants both with and without symptoms showed reduced survival rates compared to those fed on PYVV‐free plants. Semipersistently transmitted plant viruses do not require prolonged feeding by their vector for their uptake and the perceived reduced nutritional quality of infected plants may also be a stimulus for GWF adults to seek out better quality hosts, promoting horizontal transmission (Chesnais et al, 2022; Mauck et al, 2012). GWF development rate increased when nymphs were reared on symptomless plants, suggesting that there might be benefits to feeding on plants that do not express symptoms compared to plants that are either healthy or with symptoms.…”

Section: Discussionmentioning

confidence: 99%

“…A second limitation is that we used cut leaflets instead of whole plants to evaluate GWF host preference. Although this may not represent a realistic scenario, we wanted to focus on the effect of visual cues associated with PYVD symptoms in a short time frame, given their importance for whiteflies’ host plant location (Byrne & Bellows, 1991), particularly the yellowing caused by whitefly‐borne virus infections (Chesnais et al, 2022). Also, the use of whole potato plants would complicate the homogenization of treatments that involved plants with symptoms, because they all express symptoms in different degrees of severity.…”

Section: Discussionmentioning

confidence: 99%

“…Also, the use of whole potato plants would complicate the homogenization of treatments that involved plants with symptoms, because they all express symptoms in different degrees of severity. However, we are aware of the modification of the plant volatile profile that results from the physical damage (Scala et al, 2013), and its potential effects on whitefly host preference (Chesnais et al, 2022). Finally, our conclusions may not apply in all situations because PYVV genetic diversity in the field may alter the plant–virus–vector relationship we describe here.…”

Section: Discussionmentioning

confidence: 99%

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Drought as a modulator of plant–virus–vector interactions: Effects on symptom expression, plant immunity and vector behaviour

et al. 2022

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Plants are equipped with complex regulatory networks whose main components are common for both biotic and abiotic stress responses. However, many of these components function antagonistically due to negative cross-talks between disease resistance and response to environmental stress (Zhang & Sonnewald, 2017). One of the best-studied plant responses to simultaneous abiotic-biotic stresses is the drought-disease interaction, which may shift from mutualistic to pathogenic, depending on the pathogen under study, the plant genotype and drought severity (Roossinck, 2015). Some plant viruses can have a dual transmission mode: horizontal (within the same generation) and vertical (from parents to their offspring). These viruses are faced with a trade-off between horizontal transmission, which involves high viral replication rates and virulence, and vertical transmission, which requires low viral replication rates and high host survival and reproduction (Lipsitch et al., 1996). However, environmental factors may resolve this trade-off by modulating stress-induced plant susceptibility to viral replication.

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“…aphids and other vectors react to virus-induced changes in the plant. For example, yellowing symptoms induced by virus infection may attract and encourage the settling of insect vectors (for example, Chesnais et al, 2022b; Johnston and Martini, 2020). A well-characterized example of such plant modifications by non-persistent, non-circulative viruses is the cucumber mosaic virus (CMV, genus Cucumovirus , family Bromoviridae ).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome responses of the aphid vectorMyzus persicaeare shaped by identities of the host plant and the virus

Chesnais

Golyaev²,

Velt

et al. 2022

Preprint

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Background: Numerous studies document modifications in vector orientation behavior, settling and feeding behavior, and/or performance due to virus infection in host plants. These alterations are often expected to enhance virus transmission, which has led to the hypothesis that such effects are manipulations caused by virus adaptations. However, until now, the genetic basis of these effects on vectors that can be direct (effects that occur following acquisition and retention of virions) or indirect (plant-mediated effects) are mostly unknown. Results: Transcriptome profiling of Myzus persicae aphids feeding on turnip yellows virus (TuYV) and cauliflower mosaic virus (CaMV) infected Arabidopsis thaliana and Camelina sativa revealed a substantial proportion of commonly deregulated genes, revealing general players in plant-virus-aphid interactions. We identified also aphid genes specifically deregulated by CaMV or TuYV infection, which might be related to the viral transmission mode. Furthermore, we observed strong host-specific differences in the gene expression patterns with plant virus infection causing more deregulations of aphid genes on Arabidopsis than on Camelina, likely related to the differences in susceptibility of the plant hosts to these viruses. Finally, stress-related aphid genes were downregulated in Myzus on both infected plants, regardless of the virus. Conclusions: TuYV - relying on the circulative persistent mode of transmission - tends to affect developmental genes, which could increase the proportion of alate aphids in TuYV viruliferous aphids, but also contribute to their locomotion, neuronal activity, and lifespan, while CaMV - using the non-circulative non-persistent mode of transmission - had a strong impact on feeding-related genes and in particular those related to salivary proteins. In general, these transcriptome alterations target pathways that seem to be particularly adapted to the transmission mode of the corresponding virus and could be evidence of manipulation caused by viral adaptation. Keywords: Caulimovirus, polerovirus, aphid vector, insect-plant interactions, transmission, transcriptome profiling, RNA-seq

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Advanced infections by cucurbit yellow stunting disorder virus encourage whitefly vector colonization while discouraging non-vector aphid competitors

Cited by 11 publications

References 67 publications

Endophytic colonization of tomato by Beauveria bassiana decreased fitness and altered feeding behavior of whitefly Bemisia tabaci

Endophytic colonization of tomato by Beauveria bassiana decreased fitness and altered feeding behavior of whitefly Bemisia tabaci

Drought as a modulator of plant–virus–vector interactions: Effects on symptom expression, plant immunity and vector behaviour

Transcriptome responses of the aphid vectorMyzus persicaeare shaped by identities of the host plant and the virus

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