Pathogenicity of diatraea saccharalis densovirus to host insets and characterization of its viral genome

Kouassi, Nazaire; Peng, Jianxin; Li, Yang; Cavallaro, Cristina; Veyrunes, J.C.; Bergoin, Max

doi:10.1007/s12250-007-0062-8

Cited by 4 publications

(4 citation statements)

References 27 publications

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“…Densoviruses are members of the viral family Parvoviridae , subfamily Densovirinae , and can be highly host-specific and lethal 39 . Mass mortality in invertebrates is a well-characterized consequence of densovirus infection , with examples including shrimp 40 , silkworms 41 , cockroaches 42 , mosquitos 43 , crickets 44 , moths 45 , and crayfish 46 . In fact, so lethal are some densoviruses that they have been used commercially as powerful bioinsecticides 47 .…”

Section: Discussionmentioning

confidence: 99%

Mass mortality in freshwater mussels (Actinonaias pectorosa) in the Clinch River, USA, linked to a novel densovirus

Richard

Leis

Dunn

et al. 2020

Sci Rep

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freshwater mussels (order Unionida) are among the world's most biodiverse but imperiled taxa. Recent unionid mass mortality events around the world threaten ecosystem services such as water filtration, nutrient cycling, habitat stabilization, and food web enhancement, but causes have remained elusive. to examine potential infectious causes of these declines, we studied mussels in clinch River, Virginia and tennessee, USA, where the endemic and once-predominant pheasantshell (Actinonaias pectorosa) has suffered precipitous declines since approximately 2016. Using metagenomics, we identified 17 novel viruses in Clinch River pheasantshells. However, only one virus, a novel densovirus (Parvoviridae; Densovirinae), was epidemiologically linked to morbidity. Clinch densovirus 1 was 11.2 times more likely to be found in cases (moribund mussels) than controls (apparently healthy mussels from the same or matched sites), and cases had 2.7 (log 10) times higher viral loads than controls. Densoviruses cause lethal epidemic disease in invertebrates, including shrimp, cockroaches, crickets, moths, crayfish, and sea stars. Viral infection warrants consideration as a factor in unionid mass mortality events either as a direct cause, an indirect consequence of physiological compromise, or a factor interacting with other biological and ecological stressors to precipitate mortality. Freshwater mussels (order Unionida) are important members of freshwater biomes, providing ecosystem services such as water filtration, nutrient cycling and deposition, physical habitat stabilization, and food web enhancement 1. Mussels filter-feed on bacteria, suspended algae, detritus, phytoplankton and zooplankton 2 , removing suspended particulate matter from the water column and from interstitial spaces within the substrate. During periods of low summer discharge in small rivers, mussel assemblages are capable of circulating water as it flows over them, leading to multiple cycles of filtration 3 that can strongly influence ecosystem processes, even at moderate mussel densities 4. Unionids are also gaining attention for their ability to filter out chemical contaminants and water-borne pathogens 5-7. Unfortunately, the order Unionida contains an exceptional number of imperiled taxa. Among North America's 298 recognized unionid species 8 , > 70% are considered endangered, threatened, or vulnerable 9 , with 23 species having gone extinct from the Southeastern United States alone. Historically, habitat destruction (e.g., river impoundments), pollution, sedimentation, over-harvest for commercial use (most notably, pearl harvest and manufacture of shirt buttons from shells ca. 1850-1950) 10 , and competition from invasive species (e.g. the Asian clam Corbicula fluminea, zebra mussel Dreissena polymorpha, and quagga mussel D. bugensis) 11 have greatly reduced or extirpated many native mussel fauna. These threats have been present since the early twentieth century, mirroring trends in human development and land use 12 .

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Section: Discussionmentioning

confidence: 99%

Mass mortality in freshwater mussels (Actinonaias pectorosa) in the Clinch River, USA, linked to a novel densovirus

Richard

Leis

Dunn

et al. 2020

Sci Rep

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“…Meynadier et al [80] isolated a DNV of D. saccharalis (DsDNV) from the Guadeloupe sugarcane borer (Table 6). Kouassi et al [81] tested the pathogenicity of DsDNV on its host. These authors observed that the infected larvae exhibited infection symptoms from the fourth day postinfection, such as anorexia and lethargy followed by flaccidity and inhibition of molting and metamorphosis.…”

Section: Virusesmentioning

confidence: 99%

“…Larvae became paralyzed and stopped feeding after 7 days. The cumulative mortality of infected larvae increased significantly and reached 60% after 12 days and 100% at 21 days postinfection [81]. Although DNVs have no potential for large scale use as a biological control agent because they have no OBs and are related to vertebrate pathogenic viruses, the genes involved with anorexia and paralysis could be used to produce transgenic BVs or plants.…”

Section: Virusesmentioning

confidence: 99%

Pathogens Associated with Sugarcane Borers,Diatraeaspp. (Lepidoptera: Crambidae): A Review

Hernández-Velázquez

Lina-García

Obregón-Barboza

et al. 2012

International Journal of Zoology

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“…Members of the subfamily Densovirinae have been found in Lepidoptera (moths and butterflies) (Kouassi et al, 2007), Diptera (true flies) (Afanasiev et al, 1991), Orthoptera (crickets, locusts) (Liu et al, 2011), Dictyoptera (termites and cockroaches) (Mukha and Schal, 2003) and commercially important decapod crustaceans (Lightner et al, 1983;La Fauce et al, 2007). Disease presents in insects as anorexia, lethargy, flaccidity, uncoordinated movements and paralysis (Bergoin and Tijssen, 2010).…”

Section: Introductionmentioning

confidence: 99%

First complete genome of an Ambidensovirus; Cherax quadricarinatus densovirus, from freshwater crayfish Cherax quadricarinatus

et al. 2015

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Pathogenicity of diatraea saccharalis densovirus to host insets and characterization of its viral genome

Cited by 4 publications

References 27 publications

Mass mortality in freshwater mussels (Actinonaias pectorosa) in the Clinch River, USA, linked to a novel densovirus

Mass mortality in freshwater mussels (Actinonaias pectorosa) in the Clinch River, USA, linked to a novel densovirus

Pathogens Associated with Sugarcane Borers,Diatraeaspp. (Lepidoptera: Crambidae): A Review

First complete genome of an Ambidensovirus; Cherax quadricarinatus densovirus, from freshwater crayfish Cherax quadricarinatus

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