Entomopathogenic Viruses in the Neotropics: Current Status and Recently Discovered Species

Sosa–Gómez, Daniel Ricardo; Morgado, Fabrício S.; Corrêa, Roberto Franco Teixeira; Silva, L A; Ardisson-Araújo, Daniel Mendes Pereira; Rodrigues, Bruno Milhomem Pilati; Oliveira, Eugênio E.; Aguiar, Raimundo Wagner Souza; Ribeiro, Bergmann Morais

doi:10.1007/s13744-020-00770-1

Cited by 23 publications

(9 citation statements)

References 153 publications

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“…The high costs were related to the cannibalistic habits of this species and the need to rear inoculated larvae individually (Chapman et al 1999), in addition to the liquefaction of the larval integument that can limit the collection of OBs (Valicente et al 2013). Since then, several commercial products have been developed based on SfMNPV including Spobiol ® (Corpoica) (Sosa- Gómez et al 2020), registered in Colombia, Fawligen ® (AgBiTech) now registered in several countries including Bangladesh, Kenya, USA and an Emergency Use Permit in Australia, Spodovir Plus ® (Andermatt) currently undergoing testing in Australia and Littovir/RavageX ® (Andermatt) now registered in Cameroon (Gou et al 2020) and undergoing testing in Kenya. In Brazil, four commercial products containing SfMNPV are registered and sold to control FAW (Agrofit, 2022). Unlike the other products, Littovir/RavageX ® is a formulation of Spodoptera littoralis NPV that is also pathogenic to FAW.…”

Section: Baculovirusesmentioning

confidence: 99%

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Kenis¹,

Benelli²,

Biondi³

et al. 2023

entomologia

144

119

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The fall armyworm (FAW), Spodoptera frugiperda (JE Smith, 1797), is a serious pest of several crops, particularly maize and other cereals. It has long been known as a pest in the Americas and has invaded most of Africa and parts of the Middle East, Asia, and Australia in the last six years. Its new status as an invasive species causing serious damage in many regions worldwide has highlighted the need for better understanding and has generated much research. In this article, we provide a comprehensive review of FAW covering its (i) taxonomy, biology, ecology, genomics, and microbiome, (ii) worldwide status and geographic spread, (iii) potential for geographic expansion and quarantine measures in place, and (iv) management including monitoring, sampling, forecasting, biological control, biopesticides, agroecological strategies, chemical control, insecticide resistance, effects of insecticides on natural enemies, as well as conventional and transgenic resistant cultivars. We conclude with recommendations for research to enhance the sustainable management of FAW in invaded regions.

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Section: Baculovirusesmentioning

confidence: 99%

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Kenis¹,

Benelli²,

Biondi³

et al. 2023

entomologia

144

119

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“…In particular, in the field of pest control, potential candidates such as bacteria, fungi, viruses, or endosymbionts were evaluated for their ability and suitability as biological agents [ 16 , 20 , 50 , 51 , 52 ]. Using insect-specific viruses (ISVs) as biological control agents has become a valuable method to control vector-borne diseases [ 21 , 36 , 53 , 54 , 55 , 56 ]. However, due to their narrow host range, low pathogenicity [ 57 ], and the lack of proper cell lines, it is difficult to study insect pests and their viruses.…”

Section: Discussionmentioning

confidence: 99%

“…Insect viruses have been used since 1970, to control cotton bollworm [ 19 ]. The family Baculoviridae is the best-studied and most-used viral agent worldwide for controlling insect pests from the order Lepidoptera, Hymenoptera, and Coleoptera [ 20 , 21 ]. The baculovirus expression vector system (BEVs) was developed for applications such as (1) post-translational modification to introduce gene delivery in mosquito cell types, larvae and adults [ 22 ]; and (2) the surface-display platform to surprise foreign proteins on a viral or cell surface [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Identifying the Gut Virome of Diaphorina citri from Florida Groves

Lin

Batuman

Levy

2023

Insects

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Asian citrus psyllid (Diaphorina citri) transmits the bacterial pathogen Candidatus Liberibacter asiaticus (CLas), the putative causative agent of citrus Huanglongbing disease (HLB). Insect-specific viruses can act against insects as their natural enemies, and recently, several D. citri-associated viruses were discovered. The insect gut plays an important role as not only a pool for diverse microbes but also as a physical barrier to prevent the spread of pathogens such as CLas. However, there is little evidence of the presence of D. citri-associated viruses in the gut and of the interaction between them and CLas. Here, we dissected psyllid guts collected from five growing regions in Florida, and the gut virome was analyzed by high throughput sequencing. Four insect viruses, including D. citri-associated C virus (DcACV), D. citri densovirus (DcDV), D. citri reovirus (DcRV), and D. citri flavi-like virus (DcFLV), were identified, and their presence in the gut, including an additional D. citri cimodo-like virus (DcCLV), were confirmed with PCR-based assays. Microscopic analysis showed that DcFLV infection leads to morphological abnormalities in the nuclear structure in the infected psyllid gut cells. The complex and diverse composition of microbiota in the psyllid gut suggests a possible interaction and dynamics between CLas and the D. citri-associated viruses. Our study identified various D. citri-associated viruses that localized in the psyllid gut and provided more information that helps to evaluate the potential vectors for manipulating CLas in the psyllid gut.

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“…Insect‐specific viruses in the well‐studied family Baculoviridae are known for their host specificity and pathogenic effects causing high mortality in insect hosts (Clarke & Clem, 2003; Nouri et al, 2018; Sosa‐Gomez et al, 2020). Baculoviruses have been the foundation for understanding how viruses interact with the host immune system (Sparks et al, 2008), how biotic and abiotic variables influence viral persistence and interactions within an insect community (Cory et al, 2000; Fuxa, 2004; Hajek & Shapiro‐Ilan, 2018; Peng et al, 1999), and how viruses vary genetically both within and across host populations (Harrison et al, 2013; Thézé et al, 2014; Williams et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Exploring spatial and temporal patterns of viral infection across populations of the Melissa blue butterfly

McKeegan,

Muchoney,

Teglas

et al. 2023

Ecological Entomology

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Identifying patterns of pathogen infection in natural systems is crucial to understanding mechanisms of host–pathogen interactions. In this study, we explored how Junonia coenia densovirus (JcDV) infection varies over space and time in populations of the Melissa blue butterfly (Lycaeides melissa: Lycaenidae) using two different host plants. Collections of L. melissa adults from multiple populations and years, along with host plant tissue and community samples of arthropods found on host plants, were screened to determine JcDV prevalence and load. Additionally, we sampled at multiple time points within a single L. melissa flight season to investigate intra‐annual variation in infection patterns. We found population‐specific variation in viral prevalence of L. melissa across collection years, with historical samples potentially having higher viral prevalence than contemporary samples, although host plant diet was not informative for these patterns. Patterns of infection across multiple generations within a flight season showed that late‐season samples had a higher proportion of JcDV‐positive individuals, suggesting an accumulation of virus over the season. Sequence data from a segment of the JcDV capsid gene showed a lack of viral genetic diversity between L. melissa collected from different localities, and little to no viral particles were found in the surrounding environment. Our discovery of temporal variation in infection suggests that multiple sampling efforts must be made when describing pathogen prevalence in multivoltine hosts. Our findings represent an important first step towards further exploration of the ecological factors mediating disease prevalence and host‐specific variability of infection in wild insect populations.

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Entomopathogenic Viruses in the Neotropics: Current Status and Recently Discovered Species

Cited by 23 publications

References 153 publications

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Identifying the Gut Virome of Diaphorina citri from Florida Groves

Exploring spatial and temporal patterns of viral infection across populations of the Melissa blue butterfly

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