Influence of <i>Groundnut bud necrosis virus</i> on the Life History Traits and Feeding Preference of Its Vector, <i>Thrips palmi</i>

Daimei, Guisuibou; Raina, Harpreet Singh; Devi, Pukhrambam Pushpa; Saurav, Gunjan Kumar; Renukadevi, P.; Malathi, V. G.; Senthilraja, C.; Mandal, Bikash; Rajagopal, Raman

doi:10.1094/phyto-08-16-0296-r

Cited by 26 publications

(15 citation statements)

References 48 publications

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“…Comparative transcriptome analysis of F. fusca and F. tritici , a vector and non-vector of TSWV, respectively, has revealed some differences, but the relevance of those towards virus transmission still needs to be further investigated [ 212 ]. In some cases, however, no clear effects of viral infection on thrips have been observed [ 213 , 214 ].…”

Section: Transmissionmentioning

confidence: 99%

“…Data also show that viral infection changes the plant metabolism and defense responses, turning these plants to be more conducive for thrips feeding/colonization [ 200 , 201 , 203 , 214 ]. Upon infection, the viral NSs protein suppresses jasmonic acid (JA) accumulation and moreover reduces genes related to terpenoid synthesis and the content of monoterpene volatiles, causing plant hosts to become more attractive for thrips [ 215 , 216 ].…”

Section: Transmissionmentioning

confidence: 99%

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The Bunyavirales: The Plant-Infecting Counterparts

Kormelink

Verchot

Tao

et al. 2021

Viruses

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Negative-strand (-) RNA viruses (NSVs) comprise a large and diverse group of viruses that are generally divided in those with non-segmented and those with segmented genomes. Whereas most NSVs infect animals and humans, the smaller group of the plant-infecting counterparts is expanding, with many causing devastating diseases worldwide, affecting a large number of major bulk and high-value food crops. In 2018, the taxonomy of segmented NSVs faced a major reorganization with the establishment of the order Bunyavirales. This article overviews the major plant viruses that are part of the order, i.e., orthospoviruses (Tospoviridae), tenuiviruses (Phenuiviridae), and emaraviruses (Fimoviridae), and provides updates on the more recent ongoing research. Features shared with the animal-infecting counterparts are mentioned, however, special attention is given to their adaptation to plant hosts and vector transmission, including intra/intercellular trafficking and viral counter defense to antiviral RNAi.

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Section: Transmissionmentioning

confidence: 99%

Section: Transmissionmentioning

confidence: 99%

The Bunyavirales: The Plant-Infecting Counterparts

Kormelink

Verchot

Tao

et al. 2021

Viruses

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“…Thrips species have long been reported to have feeding preferences for tospovirus infected plants. Virus acquisition occurs during the developmental period from early instars to adults and this period was shortened when Thrips palmi had acquired virus from groundnut bud necrosis virus infected plants without any effect on pre-adult mortality [216]. Squash vein yellowing virus infects both squash and other cucurbits including watermelon.…”

Section: Other Recent Workmentioning

confidence: 99%

The Epidemiology of Plant Virus Disease: Towards a New Synthesis

Jeger

2020

Plants

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Epidemiology is the science of how disease develops in populations, with applications in human, animal and plant diseases. For plant diseases, epidemiology has developed as a quantitative science with the aims of describing, understanding and predicting epidemics, and intervening to mitigate their consequences in plant populations. Although the central focus of epidemiology is at the population level, it is often necessary to recognise the system hierarchies present by scaling down to the individual plant/cellular level and scaling up to the community/landscape level. This is particularly important for diseases caused by plant viruses, which in most cases are transmitted by arthropod vectors. This leads to range of virus-plant, virus-vector and vector-plant interactions giving a distinctive character to plant virus epidemiology (whilst recognising that some fungal, oomycete and bacterial pathogens are also vector-borne). These interactions have epidemiological, ecological and evolutionary consequences with implications for agronomic practices, pest and disease management, host resistance deployment, and the health of wild plant communities. Over the last two decades, there have been attempts to bring together these differing standpoints into a new synthesis, although this is more apparent for evolutionary and ecological approaches, perhaps reflecting the greater emphasis on shorter often annual time scales in epidemiological studies. It is argued here that incorporating an epidemiological perspective, specifically quantitative, into this developing synthesis will lead to new directions in plant virus research and disease management. This synthesis can serve to further consolidate and transform epidemiology as a key element in plant virus research.

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“…Such preferences can affect thrips life history traits. Virus acquisition occurs with early instars and the developmental period to adults was shortened when Thrips palmi had acquired virus from groundnut bud necrosis virus-infected plants (Daimei et al 2017). Such a shortening may facilitate the early inoculation of healthy plants by inoculative adults.…”

Section: Introductionmentioning

confidence: 99%

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

Cunniffe

Taylor

Hamelin

et al. 2021

Preprint

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Many plant viruses are transmitted by insect vectors. Transmission can be described as persistent or non-persistent depending on rates of acquisition, retention, and inoculation of virus. Much experimental evidence has accumulated indicating vectors can prefer to settle and/or feed on infected versus noninfected host plants. For persistent transmission, vector preference can also be conditional, depending on the vector's own infection status. Since viruses can alter host plant quality as a resource for feeding, infection potentially also affects vector population dynamics. Here we use mathematical modelling to develop a theoretical framework addressing the effects of vector preferences for landing, settling and feeding, as well as potential effects of infection on vector population density, on plant virus epidemics. We explore the consequences of preferences that depend on the host (infected or healthy) and vector (viruliferous or nonviruliferous) phenotypes, and how this is affected by the form of transmission, persistent or non-persistent. We show how different components of vector preference have characteristic effects on both the basic reproduction number and the final incidence of disease. We also show how vector preference can induce bistability, in which the virus is able to persist even when it cannot invade from very low densities. Feedbacks between plant infection status, vector population dynamics and virus transmission potentially lead to very complex dynamics, including sustained oscillations. Our work is supported by an interactive interface https://plantdiseasevectorpreference.herokuapp.com/. Our model reiterates the importance of coupling virus infection to vector behaviour, life history and population dynamics to fully understand plant virus epidemics.

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Influence of Groundnut bud necrosis virus on the Life History Traits and Feeding Preference of Its Vector, Thrips palmi

Cited by 26 publications

References 48 publications

The Bunyavirales: The Plant-Infecting Counterparts

The Bunyavirales: The Plant-Infecting Counterparts

The Epidemiology of Plant Virus Disease: Towards a New Synthesis

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

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