Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease

Autores
Lucero, Gabriela Susana; Boiteux, Joana Jaqueline; Pizzuolo, Pablo Humberto; Hapon, María Vanda
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The genus Phytophthora is one of the most popular in plant pathology, because of the importance of the diseases it causes. In olive trees severe damages are caused by the disease known as “dry branch”. Recently, our work team has identified as responsible of this disease the pathogens Phytophthora palmivora, P. nicotianae and P. citrophthora, being these the first report in Argentina for olive trees. P. nicotianae is one of the main responsible of yield losses in woody crops. It is why too much effort has been done to find efficient methods of control, with a low negative impact on environment and to avoid resistant strains selection. In this regard, treatment with phosphites could be a valid strategy. The aim of this work was to determine the fungistatic activity of copper, zinc and potassium phosphites on mycelium growth of P. nicotianae. The effect of phosphites at several concentrations was evaluated in vitro, through the supplemented culture medium technique. The colony diameter was recorded daily. The inhibition percentages were calculated and compared using analysis of variance. An inhibition curve was made and the required concentration to inhibit 50 and 95% of mycelial growth was calculated by non-linear regression. A completed inhibition of the mycelial growth was observed when copper and zinc phosphites were employed at 10 ppm. Copper, zinc and potassium phosphites concentration which inhibit the 50% of the mycelial growth of P. nicotianae was respectively 0.3, 0.6 and 0.7 ppm, whereas for the 95% inhibition was 1.7 ppm for the first two phosphites; unfortunately, the corresponding concentrations for potassium phosphites could not be determined. It is concluded that all these phosphites have inhibited the growth of the mycelium of P. nicotianae and therefore could be considered as a viable alternative for its control.
Fil: Lucero, Gabriela Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Boiteux, Joana Jaqueline. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Pizzuolo, Pablo Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Hapon, María Vanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Materia
Disease
Control
Olea Europea
Oomycete
Inhibition
Fungicide
Disease
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acceso abierto
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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Consejo Nacional de Investigaciones Científicas y Técnicas
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oai:ri.conicet.gov.ar:11336/37415
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch diseaseLucero, Gabriela SusanaBoiteux, Joana JaquelinePizzuolo, Pablo HumbertoHapon, María VandaDiseaseControlOlea EuropeaOomyceteInhibitionFungicideDiseasehttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4The genus Phytophthora is one of the most popular in plant pathology, because of the importance of the diseases it causes. In olive trees severe damages are caused by the disease known as “dry branch”. Recently, our work team has identified as responsible of this disease the pathogens Phytophthora palmivora, P. nicotianae and P. citrophthora, being these the first report in Argentina for olive trees. P. nicotianae is one of the main responsible of yield losses in woody crops. It is why too much effort has been done to find efficient methods of control, with a low negative impact on environment and to avoid resistant strains selection. In this regard, treatment with phosphites could be a valid strategy. The aim of this work was to determine the fungistatic activity of copper, zinc and potassium phosphites on mycelium growth of P. nicotianae. The effect of phosphites at several concentrations was evaluated in vitro, through the supplemented culture medium technique. The colony diameter was recorded daily. The inhibition percentages were calculated and compared using analysis of variance. An inhibition curve was made and the required concentration to inhibit 50 and 95% of mycelial growth was calculated by non-linear regression. A completed inhibition of the mycelial growth was observed when copper and zinc phosphites were employed at 10 ppm. Copper, zinc and potassium phosphites concentration which inhibit the 50% of the mycelial growth of P. nicotianae was respectively 0.3, 0.6 and 0.7 ppm, whereas for the 95% inhibition was 1.7 ppm for the first two phosphites; unfortunately, the corresponding concentrations for potassium phosphites could not be determined. It is concluded that all these phosphites have inhibited the growth of the mycelium of P. nicotianae and therefore could be considered as a viable alternative for its control.Fil: Lucero, Gabriela Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; ArgentinaFil: Boiteux, Joana Jaqueline. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; ArgentinaFil: Pizzuolo, Pablo Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; ArgentinaFil: Hapon, María Vanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; ArgentinaInternational Society for Horticultural Science2014-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37415Lucero, Gabriela Susana; Boiteux, Joana Jaqueline; Pizzuolo, Pablo Humberto; Hapon, María Vanda; Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease; International Society for Horticultural Science; Acta Horticulturae; 1057; 10-2014; 437-4420567-7572CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.actahort.org/books/1057/1057_55.htminfo:eu-repo/semantics/altIdentifier/doi/10.17660/ActaHortic.2014.1057.55info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:47Zoai:ri.conicet.gov.ar:11336/37415instacron: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:34982025-09-29 10:14:48.038CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
title Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
spellingShingle Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
Lucero, Gabriela Susana
Disease
Control
Olea Europea
Oomycete
Inhibition
Fungicide
Disease
title_short Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
title_full Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
title_fullStr Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
title_full_unstemmed Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
title_sort Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease
dc.creator.none.fl_str_mv Lucero, Gabriela Susana
Boiteux, Joana Jaqueline
Pizzuolo, Pablo Humberto
Hapon, María Vanda
author Lucero, Gabriela Susana
author_facet Lucero, Gabriela Susana
Boiteux, Joana Jaqueline
Pizzuolo, Pablo Humberto
Hapon, María Vanda
author_role author
author2 Boiteux, Joana Jaqueline
Pizzuolo, Pablo Humberto
Hapon, María Vanda
author2_role author
author
author
dc.subject.none.fl_str_mv Disease
Control
Olea Europea
Oomycete
Inhibition
Fungicide
Disease
topic Disease
Control
Olea Europea
Oomycete
Inhibition
Fungicide
Disease
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv The genus Phytophthora is one of the most popular in plant pathology, because of the importance of the diseases it causes. In olive trees severe damages are caused by the disease known as “dry branch”. Recently, our work team has identified as responsible of this disease the pathogens Phytophthora palmivora, P. nicotianae and P. citrophthora, being these the first report in Argentina for olive trees. P. nicotianae is one of the main responsible of yield losses in woody crops. It is why too much effort has been done to find efficient methods of control, with a low negative impact on environment and to avoid resistant strains selection. In this regard, treatment with phosphites could be a valid strategy. The aim of this work was to determine the fungistatic activity of copper, zinc and potassium phosphites on mycelium growth of P. nicotianae. The effect of phosphites at several concentrations was evaluated in vitro, through the supplemented culture medium technique. The colony diameter was recorded daily. The inhibition percentages were calculated and compared using analysis of variance. An inhibition curve was made and the required concentration to inhibit 50 and 95% of mycelial growth was calculated by non-linear regression. A completed inhibition of the mycelial growth was observed when copper and zinc phosphites were employed at 10 ppm. Copper, zinc and potassium phosphites concentration which inhibit the 50% of the mycelial growth of P. nicotianae was respectively 0.3, 0.6 and 0.7 ppm, whereas for the 95% inhibition was 1.7 ppm for the first two phosphites; unfortunately, the corresponding concentrations for potassium phosphites could not be determined. It is concluded that all these phosphites have inhibited the growth of the mycelium of P. nicotianae and therefore could be considered as a viable alternative for its control.
Fil: Lucero, Gabriela Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Boiteux, Joana Jaqueline. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Pizzuolo, Pablo Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
Fil: Hapon, María Vanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
description The genus Phytophthora is one of the most popular in plant pathology, because of the importance of the diseases it causes. In olive trees severe damages are caused by the disease known as “dry branch”. Recently, our work team has identified as responsible of this disease the pathogens Phytophthora palmivora, P. nicotianae and P. citrophthora, being these the first report in Argentina for olive trees. P. nicotianae is one of the main responsible of yield losses in woody crops. It is why too much effort has been done to find efficient methods of control, with a low negative impact on environment and to avoid resistant strains selection. In this regard, treatment with phosphites could be a valid strategy. The aim of this work was to determine the fungistatic activity of copper, zinc and potassium phosphites on mycelium growth of P. nicotianae. The effect of phosphites at several concentrations was evaluated in vitro, through the supplemented culture medium technique. The colony diameter was recorded daily. The inhibition percentages were calculated and compared using analysis of variance. An inhibition curve was made and the required concentration to inhibit 50 and 95% of mycelial growth was calculated by non-linear regression. A completed inhibition of the mycelial growth was observed when copper and zinc phosphites were employed at 10 ppm. Copper, zinc and potassium phosphites concentration which inhibit the 50% of the mycelial growth of P. nicotianae was respectively 0.3, 0.6 and 0.7 ppm, whereas for the 95% inhibition was 1.7 ppm for the first two phosphites; unfortunately, the corresponding concentrations for potassium phosphites could not be determined. It is concluded that all these phosphites have inhibited the growth of the mycelium of P. nicotianae and therefore could be considered as a viable alternative for its control.
publishDate 2014
dc.date.none.fl_str_mv 2014-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/37415
Lucero, Gabriela Susana; Boiteux, Joana Jaqueline; Pizzuolo, Pablo Humberto; Hapon, María Vanda; Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease; International Society for Horticultural Science; Acta Horticulturae; 1057; 10-2014; 437-442
0567-7572
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37415
identifier_str_mv Lucero, Gabriela Susana; Boiteux, Joana Jaqueline; Pizzuolo, Pablo Humberto; Hapon, María Vanda; Effect of copper, zinc and potassium phosphites on the mycelium growth of phytophthora nicotianae in olive tree dry branch disease; International Society for Horticultural Science; Acta Horticulturae; 1057; 10-2014; 437-442
0567-7572
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.actahort.org/books/1057/1057_55.htm
info:eu-repo/semantics/altIdentifier/doi/10.17660/ActaHortic.2014.1057.55
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv International Society for Horticultural Science
publisher.none.fl_str_mv International Society for Horticultural Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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