Use of commercial fungal inoculants for the control of Nacobbus celatus

Autores
Lax, Paola; Becerra, Alejandra Gabriela
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Several species of plant-parasitic nematodes are responsible for causing considerable damage in agriculture. In Argentina, Nacobbus celatus (previously identified as N. aberrans) is widely distributed. It is a polyphagous species and produces galls on the host roots. In the last years, the search for biological control alternatives to replace chemical nematicides has increased, with emphasis on the use of rhizospheric organisms, including arbuscular mycorrhizal fungi (AMF) and Trichoderma spp. AMF establish a symbiotic association with 80% of terrestrial plants, conferring direct benefits, such as the absorption of nutrients (mainly phosphorus). On the other hand, AMF provide protection against soil pathogens, including plant-parasitic nematodes; the same antagonistic effect is also observed with Trichoderma spp. Commercial inocula of both microorganisms are available on the market, but their efficiency on local nematode populations is unknown. Considering a nematode population, an experiment was performed on tomato plants by applying two commercial inocula at the recommended doses: Rhizophagus intraradices (1 cc) and T. atroviride (dosis 2x106/ml). Treatments were: control, nematode, nematode + AMF, nematode + T. atroviride, nematode + AMF + T. atroviride. Inoculations were carried out at transplanting. Each treatment had five replicates; plants were grown under controlled conditions in a greenhouse for 60 days. After this time, the number of root galls induced by the nematode was counted. In comparison with the control, individual application of AMF and T. atroviride significantly reduced galls by 76% and 43%, respectively. The combined inoculation of the two fungi decreased the number of galls by 48%. The results show that the two commercial inocula have the potential to reduce N. celatus damage. Since the AMF-T. atroviride combination showed to be less efficient than the individual application of AMF, a possible antagonist effect of T. atroviride on AMF remains to be analysed.
Fil: Lax, Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: Becerra, Alejandra Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research; XVI Annual Meeting of the Argentinean Society for General Microbiology
Buenos Aires
Argentina
Argentine Society for Biochemistry and Molecular Biology Research
Argentinean Society for General Microbiology
Materia
PLANT-PARASITIC NEMATODES
FUNGAL INOCULUM
NACOBBUS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/174916
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/174916
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Use of commercial fungal inoculants for the control of Nacobbus celatusLax, PaolaBecerra, Alejandra GabrielaPLANT-PARASITIC NEMATODESFUNGAL INOCULUMNACOBBUShttps://purl.org/becyt/ford/4.4https://purl.org/becyt/ford/4Several species of plant-parasitic nematodes are responsible for causing considerable damage in agriculture. In Argentina, Nacobbus celatus (previously identified as N. aberrans) is widely distributed. It is a polyphagous species and produces galls on the host roots. In the last years, the search for biological control alternatives to replace chemical nematicides has increased, with emphasis on the use of rhizospheric organisms, including arbuscular mycorrhizal fungi (AMF) and Trichoderma spp. AMF establish a symbiotic association with 80% of terrestrial plants, conferring direct benefits, such as the absorption of nutrients (mainly phosphorus). On the other hand, AMF provide protection against soil pathogens, including plant-parasitic nematodes; the same antagonistic effect is also observed with Trichoderma spp. Commercial inocula of both microorganisms are available on the market, but their efficiency on local nematode populations is unknown. Considering a nematode population, an experiment was performed on tomato plants by applying two commercial inocula at the recommended doses: Rhizophagus intraradices (1 cc) and T. atroviride (dosis 2x106/ml). Treatments were: control, nematode, nematode + AMF, nematode + T. atroviride, nematode + AMF + T. atroviride. Inoculations were carried out at transplanting. Each treatment had five replicates; plants were grown under controlled conditions in a greenhouse for 60 days. After this time, the number of root galls induced by the nematode was counted. In comparison with the control, individual application of AMF and T. atroviride significantly reduced galls by 76% and 43%, respectively. The combined inoculation of the two fungi decreased the number of galls by 48%. The results show that the two commercial inocula have the potential to reduce N. celatus damage. Since the AMF-T. atroviride combination showed to be less efficient than the individual application of AMF, a possible antagonist effect of T. atroviride on AMF remains to be analysed.Fil: Lax, Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Becerra, Alejandra Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaLVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research; XVI Annual Meeting of the Argentinean Society for General MicrobiologyBuenos AiresArgentinaArgentine Society for Biochemistry and Molecular Biology ResearchArgentinean Society for General MicrobiologyTech Science Press2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/174916Use of commercial fungal inoculants for the control of Nacobbus celatus; LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research; XVI Annual Meeting of the Argentinean Society for General Microbiology; Buenos Aires; Argentina; 2021; 96-960327-95451667-5746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://congresos.g2consultora.com/wp-content/uploads/2021/10/Biocell-Preprint-SAIB-SAMIGE-2021.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:35Zoai:ri.conicet.gov.ar:11336/174916instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:46:35.925CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Use of commercial fungal inoculants for the control of Nacobbus celatus
title Use of commercial fungal inoculants for the control of Nacobbus celatus
spellingShingle Use of commercial fungal inoculants for the control of Nacobbus celatus
Lax, Paola
PLANT-PARASITIC NEMATODES
FUNGAL INOCULUM
NACOBBUS
title_short Use of commercial fungal inoculants for the control of Nacobbus celatus
title_full Use of commercial fungal inoculants for the control of Nacobbus celatus
title_fullStr Use of commercial fungal inoculants for the control of Nacobbus celatus
title_full_unstemmed Use of commercial fungal inoculants for the control of Nacobbus celatus
title_sort Use of commercial fungal inoculants for the control of Nacobbus celatus
dc.creator.none.fl_str_mv Lax, Paola
Becerra, Alejandra Gabriela
author Lax, Paola
author_facet Lax, Paola
Becerra, Alejandra Gabriela
author_role author
author2 Becerra, Alejandra Gabriela
author2_role author
dc.subject.none.fl_str_mv PLANT-PARASITIC NEMATODES
FUNGAL INOCULUM
NACOBBUS
topic PLANT-PARASITIC NEMATODES
FUNGAL INOCULUM
NACOBBUS
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.4
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Several species of plant-parasitic nematodes are responsible for causing considerable damage in agriculture. In Argentina, Nacobbus celatus (previously identified as N. aberrans) is widely distributed. It is a polyphagous species and produces galls on the host roots. In the last years, the search for biological control alternatives to replace chemical nematicides has increased, with emphasis on the use of rhizospheric organisms, including arbuscular mycorrhizal fungi (AMF) and Trichoderma spp. AMF establish a symbiotic association with 80% of terrestrial plants, conferring direct benefits, such as the absorption of nutrients (mainly phosphorus). On the other hand, AMF provide protection against soil pathogens, including plant-parasitic nematodes; the same antagonistic effect is also observed with Trichoderma spp. Commercial inocula of both microorganisms are available on the market, but their efficiency on local nematode populations is unknown. Considering a nematode population, an experiment was performed on tomato plants by applying two commercial inocula at the recommended doses: Rhizophagus intraradices (1 cc) and T. atroviride (dosis 2x106/ml). Treatments were: control, nematode, nematode + AMF, nematode + T. atroviride, nematode + AMF + T. atroviride. Inoculations were carried out at transplanting. Each treatment had five replicates; plants were grown under controlled conditions in a greenhouse for 60 days. After this time, the number of root galls induced by the nematode was counted. In comparison with the control, individual application of AMF and T. atroviride significantly reduced galls by 76% and 43%, respectively. The combined inoculation of the two fungi decreased the number of galls by 48%. The results show that the two commercial inocula have the potential to reduce N. celatus damage. Since the AMF-T. atroviride combination showed to be less efficient than the individual application of AMF, a possible antagonist effect of T. atroviride on AMF remains to be analysed.
Fil: Lax, Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: Becerra, Alejandra Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research; XVI Annual Meeting of the Argentinean Society for General Microbiology
Buenos Aires
Argentina
Argentine Society for Biochemistry and Molecular Biology Research
Argentinean Society for General Microbiology
description Several species of plant-parasitic nematodes are responsible for causing considerable damage in agriculture. In Argentina, Nacobbus celatus (previously identified as N. aberrans) is widely distributed. It is a polyphagous species and produces galls on the host roots. In the last years, the search for biological control alternatives to replace chemical nematicides has increased, with emphasis on the use of rhizospheric organisms, including arbuscular mycorrhizal fungi (AMF) and Trichoderma spp. AMF establish a symbiotic association with 80% of terrestrial plants, conferring direct benefits, such as the absorption of nutrients (mainly phosphorus). On the other hand, AMF provide protection against soil pathogens, including plant-parasitic nematodes; the same antagonistic effect is also observed with Trichoderma spp. Commercial inocula of both microorganisms are available on the market, but their efficiency on local nematode populations is unknown. Considering a nematode population, an experiment was performed on tomato plants by applying two commercial inocula at the recommended doses: Rhizophagus intraradices (1 cc) and T. atroviride (dosis 2x106/ml). Treatments were: control, nematode, nematode + AMF, nematode + T. atroviride, nematode + AMF + T. atroviride. Inoculations were carried out at transplanting. Each treatment had five replicates; plants were grown under controlled conditions in a greenhouse for 60 days. After this time, the number of root galls induced by the nematode was counted. In comparison with the control, individual application of AMF and T. atroviride significantly reduced galls by 76% and 43%, respectively. The combined inoculation of the two fungi decreased the number of galls by 48%. The results show that the two commercial inocula have the potential to reduce N. celatus damage. Since the AMF-T. atroviride combination showed to be less efficient than the individual application of AMF, a possible antagonist effect of T. atroviride on AMF remains to be analysed.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/174916
Use of commercial fungal inoculants for the control of Nacobbus celatus; LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research; XVI Annual Meeting of the Argentinean Society for General Microbiology; Buenos Aires; Argentina; 2021; 96-96
0327-9545
1667-5746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/174916
identifier_str_mv Use of commercial fungal inoculants for the control of Nacobbus celatus; LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research; XVI Annual Meeting of the Argentinean Society for General Microbiology; Buenos Aires; Argentina; 2021; 96-96
0327-9545
1667-5746
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Tech Science Press
publisher.none.fl_str_mv Tech Science Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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