The small brown planthopper (<i>Laodelphax striatellus</i>) as a vector of the rice stripe virus

Kil, Eui-Joon; Kim, Dong-Hun

doi:10.1002/arch.21992

Cited by 6 publications

(1 citation statement)

References 120 publications

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“…striatellus is widely distributed worldwide, causing serious harm to rice, barley, and maize fields. In addition to directly feeding on the phloem sap, it can also transmit various viruses [23]. RSV can be efficiently transmitted by horizontal and vertical transmission through L. striatellus, resulting in persistent and circulative-propagative transmission [24].…”

Section: Introductionmentioning

confidence: 99%

Rice Stripe Virus Infection Facilitates the Reproductive Potential of Laodelphax striatellus

Zhang,

Yu,

et al. 2024

Agronomy

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The rice stripe virus (RSV) is transmitted by the small brown planthopper Laodelphax striatellus in a persistent and circulative–propagative manner. During the last few decades, RSV has caused serious disease outbreaks in rice fields in China. The results of long-term coevolution have led to complex and diverse relationships between viruses and vector insects, and understanding these interactions is critical for the management of diseases and vector organisms. In this study, three groups of comparative experiments were performed to investigate the effects of RSV infection on the reproductive parameters, vitellogenin (Vg), and Vg receptor (VgR) expressions of L. striatellus. The results showed that RSV infection promoted the fecundity, hatchability, and Vg and VgR expressions of L. striatellus but had no effect on the preoviposition period and oviposition period. Furthermore, the RNA interference of the nucleocapsid protein (CP) gene and the injection of the CP antibody in RSV-viruliferous L. striatellus reduced the fecundity, hatchability, and Vg and VgR expressions, further strengthening the hypothesis that RSV may manipulate the reproductive behavior of insect vectors to promote its own transmission. The results of this study can further reveal the interaction mechanism of virus–vector insects in reproduction and virus transmission, and provide new insights for the control of insect-borne viruses.

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Section: Introductionmentioning

confidence: 99%

Rice Stripe Virus Infection Facilitates the Reproductive Potential of Laodelphax striatellus

Zhang,

Yu,

et al. 2024

Agronomy

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Alternative splicing impacts the rice stripe virus response transcriptome

Li,

Guo,

Wang

et al. 2023

Virology

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Diversity and transmissibility of RNA viruses in the small brown planthopper, Laodelphax striatellus

Mao,

Ye,

Yuan

et al. 2024

J Virol

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While a considerable number of viruses have been recently discovered in hematophagous insects, there remains insufficient research on virus diversity and their association with phytophagous insect hosts. In this study, we conducted a systematic investigation of the RNA virome in the small brown planthopper (SBPH), Laodelphax striatellus , an important vector of plant viruses. We successfully identified a total of 22 RNA viruses, including 17 novel viruses, from various families. These viruses were prevalent and abundant in SBPH populations, originating from the lab or field, with +ssRNA viruses composing the core SBPH viruses. Subsequent analysis revealed that the overall abundance of RNA viruses in SBPH remained relatively consistent across different developmental stages of the insects, although the titers of individual viruses varied among different insect tissues. This indicates a delicate balance between the viruses and their insect hosts. Interestingly, cross-species experiments confidently indicated that certain SBPH viruses could successfully infect and replicate in two other rice planthopper species (the brown planthopper and the white-backed planthopper) through microinjection. In conclusion, this study provides valuable insights into the RNA virome and its adaptability in a phytophagous insect, contributing to a better understanding of the intimate relationship between viruses and host insects. IMPORTANCE In the last decade, advances in the next-generation sequencing technology have unveiled a vast diversity of viruses in insects, particularly RNA viruses in hematophagous insects. However, research on virus diversity and their association with phytophagous insect hosts remains insufficient. This study presents a comprehensive analysis of the RNA virome in the small brown planthopper (SBPH), Laodelphax striatellus , a critical vector of plant viruses. The results indicated that the +ssRNA viruses, especially picorna-like viruses, comprised the core RNA viruses of SBPH that were prevalent in both laboratory and field populations. Moreover, a delicate balance was observed between the viruses and insect hosts. Significantly, some RNA viruses of SBPH could successfully infect and replicate in two other rice planthopper species belonging to different genera. This study provides valuable insights into the RNA virome and its adaptability in a phytophagous insect.

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The small brown planthopper (Laodelphax striatellus) as a vector of the rice stripe virus

Cited by 6 publications

References 120 publications

Rice Stripe Virus Infection Facilitates the Reproductive Potential of Laodelphax striatellus

Rice Stripe Virus Infection Facilitates the Reproductive Potential of Laodelphax striatellus

Alternative splicing impacts the rice stripe virus response transcriptome

Diversity and transmissibility of RNA viruses in the small brown planthopper, Laodelphax striatellus

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