Differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals
Soil represents the principal environmental reservoir of many insect-pathogenic viruses. We compared the adsorption and infectivity of one occluded and two nonoccluded viruses, Helicoverpa armigera single nucleopolyhedrovirus (HaSNPV) (Baculoviridae), Cricket paralysis virus (CrPV) (Dicistroviridae), and Invertebrate iridescent virus 6 (IIV-6) (Iridoviridae), respectively, in mixtures with a selection of soil-forming minerals. The relative infective titers of HaSNPV and CrPV were unchanged or slightly reduced in the presence of different minerals compared to their titers in the absence of the mineral. In contrast, the infective titer of IIV-6 varied according to the mineral being tested. In adsorption studies, over 98% of HaSNPV occlusion bodies were adsorbed by all the minerals, and a particularly high affinity was observed with ferric oxide, attapulgite, and kaolinite. In contrast, the adsorption of CrPV and IIV-6 differed markedly with mineral type, with low affinity to bentonites and high affinity to ferric oxide and kaolinite. We conclude that interactions between soil-forming minerals and insect viruses appear to be most important in nucleopolyhedroviruses, followed by invertebrate iridescent viruses, and least important in CrPV, which may reflect the ecology of these pathogens. Moreover, soils with a high content of iron oxides or kaolinite would likely represent highly effective reservoirs for insect-pathogenic viruses.
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Subjects: | Helicoverpa armigera nucleopolyhedrovirus, Cricket paralysis virus, Virus iridiscente de invertebrados 6, Virus de insectos, Suelos minerales, |
Online Access: | http://aem.asm.org/content/72/7/4648.full |
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KOHA-OAI-ECOSUR:369642024-03-12T13:01:35ZDifferential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals Christian, Peter autor/a Richards, Andrew R. autor/a Williams, Trevor Doctor autor/a 5446 textengSoil represents the principal environmental reservoir of many insect-pathogenic viruses. We compared the adsorption and infectivity of one occluded and two nonoccluded viruses, Helicoverpa armigera single nucleopolyhedrovirus (HaSNPV) (Baculoviridae), Cricket paralysis virus (CrPV) (Dicistroviridae), and Invertebrate iridescent virus 6 (IIV-6) (Iridoviridae), respectively, in mixtures with a selection of soil-forming minerals. The relative infective titers of HaSNPV and CrPV were unchanged or slightly reduced in the presence of different minerals compared to their titers in the absence of the mineral. In contrast, the infective titer of IIV-6 varied according to the mineral being tested. In adsorption studies, over 98% of HaSNPV occlusion bodies were adsorbed by all the minerals, and a particularly high affinity was observed with ferric oxide, attapulgite, and kaolinite. In contrast, the adsorption of CrPV and IIV-6 differed markedly with mineral type, with low affinity to bentonites and high affinity to ferric oxide and kaolinite. We conclude that interactions between soil-forming minerals and insect viruses appear to be most important in nucleopolyhedroviruses, followed by invertebrate iridescent viruses, and least important in CrPV, which may reflect the ecology of these pathogens. Moreover, soils with a high content of iron oxides or kaolinite would likely represent highly effective reservoirs for insect-pathogenic viruses.Soil represents the principal environmental reservoir of many insect-pathogenic viruses. We compared the adsorption and infectivity of one occluded and two nonoccluded viruses, Helicoverpa armigera single nucleopolyhedrovirus (HaSNPV) (Baculoviridae), Cricket paralysis virus (CrPV) (Dicistroviridae), and Invertebrate iridescent virus 6 (IIV-6) (Iridoviridae), respectively, in mixtures with a selection of soil-forming minerals. The relative infective titers of HaSNPV and CrPV were unchanged or slightly reduced in the presence of different minerals compared to their titers in the absence of the mineral. In contrast, the infective titer of IIV-6 varied according to the mineral being tested. In adsorption studies, over 98% of HaSNPV occlusion bodies were adsorbed by all the minerals, and a particularly high affinity was observed with ferric oxide, attapulgite, and kaolinite. In contrast, the adsorption of CrPV and IIV-6 differed markedly with mineral type, with low affinity to bentonites and high affinity to ferric oxide and kaolinite. We conclude that interactions between soil-forming minerals and insect viruses appear to be most important in nucleopolyhedroviruses, followed by invertebrate iridescent viruses, and least important in CrPV, which may reflect the ecology of these pathogens. Moreover, soils with a high content of iron oxides or kaolinite would likely represent highly effective reservoirs for insect-pathogenic viruses.Adobe Acrobat profesional 6.0 o superior e InternetHelicoverpa armigera nucleopolyhedrovirusCricket paralysis virusVirus iridiscente de invertebrados 6Virus de insectosSuelos mineralesDisponible en líneaApplied and Environmental Microbiologyhttp://aem.asm.org/content/72/7/4648.fullAcceso en línea sin restricciones |
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Helicoverpa armigera nucleopolyhedrovirus Cricket paralysis virus Virus iridiscente de invertebrados 6 Virus de insectos Suelos minerales Helicoverpa armigera nucleopolyhedrovirus Cricket paralysis virus Virus iridiscente de invertebrados 6 Virus de insectos Suelos minerales |
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Helicoverpa armigera nucleopolyhedrovirus Cricket paralysis virus Virus iridiscente de invertebrados 6 Virus de insectos Suelos minerales Helicoverpa armigera nucleopolyhedrovirus Cricket paralysis virus Virus iridiscente de invertebrados 6 Virus de insectos Suelos minerales Christian, Peter autor/a Richards, Andrew R. autor/a Williams, Trevor Doctor autor/a 5446 Differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals |
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Soil represents the principal environmental reservoir of many insect-pathogenic viruses. We compared the adsorption and infectivity of one occluded and two nonoccluded viruses, Helicoverpa armigera single nucleopolyhedrovirus (HaSNPV) (Baculoviridae), Cricket paralysis virus (CrPV) (Dicistroviridae), and Invertebrate iridescent virus 6 (IIV-6) (Iridoviridae), respectively, in mixtures with a selection of soil-forming minerals. The relative infective titers of HaSNPV and CrPV were unchanged or slightly reduced in the presence of different minerals compared to their titers in the absence of the mineral. In contrast, the infective titer of IIV-6 varied according to the mineral being tested. In adsorption studies, over 98% of HaSNPV occlusion bodies were adsorbed by all the minerals, and a particularly high affinity was observed with ferric oxide, attapulgite, and kaolinite. In contrast, the adsorption of CrPV and IIV-6 differed markedly with mineral type, with low affinity to bentonites and high affinity to ferric oxide and kaolinite. We conclude that interactions between soil-forming minerals and insect viruses appear to be most important in nucleopolyhedroviruses, followed by invertebrate iridescent viruses, and least important in CrPV, which may reflect the ecology of these pathogens. Moreover, soils with a high content of iron oxides or kaolinite would likely represent highly effective reservoirs for insect-pathogenic viruses. |
format |
Texto |
topic_facet |
Helicoverpa armigera nucleopolyhedrovirus Cricket paralysis virus Virus iridiscente de invertebrados 6 Virus de insectos Suelos minerales |
author |
Christian, Peter autor/a Richards, Andrew R. autor/a Williams, Trevor Doctor autor/a 5446 |
author_facet |
Christian, Peter autor/a Richards, Andrew R. autor/a Williams, Trevor Doctor autor/a 5446 |
author_sort |
Christian, Peter autor/a |
title |
Differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals |
title_short |
Differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals |
title_full |
Differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals |
title_fullStr |
Differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals |
title_full_unstemmed |
Differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals |
title_sort |
differential adsorption of occluded and nonoccluded insect-pathogenic viruses to soil-forming minerals |
url |
http://aem.asm.org/content/72/7/4648.full |
work_keys_str_mv |
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