A peptidoglycan recognition protein acts in whitefly (Bemisia tabaci) immunity and involves in Begomovirus acquisition

Wang, Zhi; Shi, Min; Huang, Yi-Cun; Wang, Xiaowei; Stanley, David; Chen, Xue‐Xin

doi:10.1038/srep37806

Cited by 32 publications

(27 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A peptidoglycan recognition protein gene (PGRP) from B. tabaci B (coined BtPRPG ) was upregulated upon ingestion and accumulation of TYLCV and TYLCCNV, but not of the monopartite Tobacco curly shoot virus TbCSV [ 69 ]. BtPGRP was expressed in several tissues at all life stages from egg to adult.…”

Section: Organs Tissues and Cells Visited By Begomoviruses Circulmentioning

confidence: 99%

See 1 more Smart Citation

The Incredible Journey of Begomoviruses in Their Whitefly Vector

Czosnek

Hariton-Shalev

Sobol

et al. 2017

Viruses

166

125

View full text Add to dashboard Cite

Begomoviruses are vectored in a circulative persistent manner by the whitefly Bemisia tabaci. The insect ingests viral particles with its stylets. Virions pass along the food canal and reach the esophagus and the midgut. They cross the filter chamber and the midgut into the haemolymph, translocate into the primary salivary glands and are egested with the saliva into the plant phloem. Begomoviruses have to cross several barriers and checkpoints successfully, while interacting with would-be receptors and other whitefly proteins. The bulk of the virus remains associated with the midgut and the filter chamber. In these tissues, viral genomes, mainly from the tomato yellow leaf curl virus (TYLCV) family, may be transcribed and may replicate. However, at the same time, virus amounts peak, and the insect autophagic response is activated, which in turn inhibits replication and induces the destruction of the virus. Some begomoviruses invade tissues outside the circulative pathway, such as ovaries and fat cells. Autophagy limits the amounts of virus associated with these organs. In this review, we discuss the different sites begomoviruses need to cross to complete a successful circular infection, the role of the coat protein in this process and the sites that balance between virus accumulation and virus destruction.

show abstract

Section: Organs Tissues and Cells Visited By Begomoviruses Circulmentioning

confidence: 99%

“…PGPR and TYLCV CP interactions were detected in vitro by immunocapture PCR and in situ by fluorescent immuno-detection in the midguts of viruliferous whiteflies. Taken together, the BtPGRP gene is involved in whitefly immunity, as well as in begomovirus transmission [ 69 ].…”

Section: Organs Tissues and Cells Visited By Begomoviruses Circulmentioning

confidence: 99%

The Incredible Journey of Begomoviruses in Their Whitefly Vector

Czosnek

Hariton-Shalev

Sobol

et al. 2017

Viruses

166

125

View full text Add to dashboard Cite

show abstract

“…As the nutritional value of plants might not be reduced by the infection stress ( Figure S2), the responses of tomato plant against ToMV infection could have affected the preference of whitefly. The infection of TYLCV has been reported to alter the palatability of vector insects by interacting with the insects or their endogenous microorganisms (Su et al 2013;Wang et al 2016). It has been known that there are different biotypes of whitefly, with their endogenous microorganisms determining their palatability (Guo et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…It is known that some whitefly populations carrying TYLCV prefer to colonize the plants infected with TYLCV and other populations poorly spreading TYLCV prefer healthy plant (Shi et al 2016). It is thought that some viruses can alter the preference of vector insects by interacting with the insects themselves or with their endogenous microorganisms (Su et al 2013;Guo et al 2014;Wang et al 2016). However, it is not clear how whiteflies discriminate infected plants from healthy plants.…”

Section: Introductionmentioning

confidence: 99%

Accumulation of salicylic acid in tomato plant under biological stress affects oviposition preference of Bemisia tabaci

Ueda

Kugimiya

Tabata

et al. 2018

Journal of Plant Interactions

View full text Add to dashboard Cite

In field, plants are exposed to multiple biological stresses simultaneously; for example, insect damage and pathogenic virus infection. In this study, we constructed a simple tripartite experimental system using tomato plant, their insect pest Bemisia tabaci (whitefly), and infectious tomato mosaic virus (ToMV). In the choice test, whiteflies laid more eggs on uninfected plant than on ToMV-infected plant. Further, whiteflies hatched more and grew better on the uninfected plant. Salicylic acid (SA) accumulated in infected plants, and the expression of genes involved in SA production and SArelated response was significantly induced. These plant responses against ToMV infection were similar to those against whitefly attack or SA-treated plants. To examine the importance of plant endogenous SA for whitefly preference, we repeated the choice test using the NahG transgenic tomato that cannot accumulate SA. Whiteflies did not show oviposition preference between NahG plants with and without ToMV infection or whitefly infestation. Overall, whiteflies prefer healthy plants, and SA accumulation in response to biological stresses is involved in their preference.

show abstract

“…Not all begomoviruses appear to replicate in the whitefly [37], and hence additional efforts are needed to understand why only certain virus species replicate within the insect. The continuous virus replication might not be beneficial to the viruses, because this can induce insect autophagy and antimicrobial peptide production leading to virion destruction and the inhibition of prolonged virus replication [38]. The active viral gene transcription of some begomoviruses can occur within the insect [37][38][39].…”

Section: The Voyage Of Virus Inside the Insect Vectormentioning

confidence: 99%

Plant-virus-insect tritrophic interactions: insights into the functions of geminivirus virion-sense strand genes

Kumar

Shivaprasad

2020

Proc. R. Soc. B.

View full text Add to dashboard Cite

The genome of the plant-infecting viruses in the family Geminiviridae is composed of one or two circular single stranded DNA of approximately 2.7–5.2 kb in length. These viruses have emerged as the most devastating pathogen infecting a large number of crops and weeds across the continents. They code for fewer open reading frames (ORFs) through the generation of overlapping transcripts derived from the bidirectional viral promoters. Members of geminiviruses code for up to four ORFs in the virion-sense strand, and their gene expression is regulated by various cis -elements located at their promoters in the intergenic region. These viral proteins perform multiple functions at every stage of the viral life cycle such as virus transport, insect-mediated virus transmission and suppression of host defence. They impede the host's multi-layered antiviral mechanisms including gene silencing (at transcriptional and post-transcriptional levels) and hypersensitive response. This review summarizes the essential role of virion-sense strand encoded proteins in transport of viral genomes within and between plant cells, countering defence in hosts (both plants and the insects), and also in the ubiquitous role in vector-mediated transmission. We highlight the significance of their pro-viral activities in manipulating host-derived innate immune responses and the interaction with whitefly-derived proteins. We also discuss the current knowledge on virus replication and transcription within the insect body.

show abstract

A peptidoglycan recognition protein acts in whitefly (Bemisia tabaci) immunity and involves in Begomovirus acquisition

Cited by 32 publications

References 53 publications

The Incredible Journey of Begomoviruses in Their Whitefly Vector

The Incredible Journey of Begomoviruses in Their Whitefly Vector

Accumulation of salicylic acid in tomato plant under biological stress affects oviposition preference of Bemisia tabaci

Plant-virus-insect tritrophic interactions: insights into the functions of geminivirus virion-sense strand genes

Contact Info

Product

Resources

About