Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)

Autores
Giachino, María V.; Setten, Lorena; Taibo, Catalina Beatriz; Sabio Y Garcia, Julia Veronica; Craig, Elena B.; Ewens, Mauricio; Saparrat, Mario C.N.; Barrera, Viviana Andrea
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In forest nurseries, maintaining plant health is essential for producing high-quality seedlings. Effective sanitary management relies on continuous monitoring throughout the crop cycle. Powdery mildew, caused by fungi in the Erysiphaceae family, extracts nutritional plant reserves, thus reducing its productive potential and causing significant economic losses due to lower yield and quality. Although Erysiphaceae has not been yet studied in some natural ecosystems, such as the Chaco region of Argentina, information from these natural ecosystems is critical. This research aimed to comprehensively study Pleochaeta prosopidis isolates from Neltuma alba and to assess the relationship between disease incidence and seedling quality in nursery conditions. This pathogen exhibited a partially endoparasitic life cycle, causing damage to the mesophyll of infected leaves. The phylogenetic analysis of the 28S rDNA sequences from N. alba seedlings with powdery mildew signs grouped with the reference sequence corresponding to Pl. prosopidis. The highest levels of disease incidence and severity occurred during winter and in plants kept in the nursery for over nine months (p < 0.001). Infected seedlings showed a significant reduction in height and diameter at neck height (p < 0.007), indicating a clear decline in quality. This study provides the first comprehensive description of Pl. prosopidis in N. alba, highlighting its impact on seedling development and nursery productivity.
Instituto de Suelos
Fil: Giachino, María V. Universidad Nacional de Luján. Departamento de Tecnología; Argentina
Fil: Setten, Lorena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina
Fil: Taibo, Catalina. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones de Ciencias Veterinarias y Agronómicas; Argentina
Fil: Sabio y García, Julia V. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones de Ciencias Veterinarias y Agronómicas; Argentina
Fil: Craig, Elena B. Universidad Nacional de Luján. Departamento de Tecnología; Argentina
Fil: Ewens, Mauricio. Universidad Católica de Santiago del Estero. Estación Experimental Fernández; Argentina
Fil: Saparrat, Mario C.N. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal (INFIVE); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Barrera, Viviana A. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina
Fuente
Current Microbiology 83 : article number 174. (2026)
Materia
Pleochaeta
Oídio
Powdery Mildews
Argentina
Pleochaeta prosopidis
Neltuma alba
Gran Chaco
Moho en Polvo
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
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spelling Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)Giachino, María V.Setten, LorenaTaibo, Catalina BeatrizSabio Y Garcia, Julia VeronicaCraig, Elena B.Ewens, MauricioSaparrat, Mario C.N.Barrera, Viviana AndreaPleochaetaOídioPowdery MildewsArgentinaPleochaeta prosopidisNeltuma albaGran ChacoMoho en PolvoIn forest nurseries, maintaining plant health is essential for producing high-quality seedlings. Effective sanitary management relies on continuous monitoring throughout the crop cycle. Powdery mildew, caused by fungi in the Erysiphaceae family, extracts nutritional plant reserves, thus reducing its productive potential and causing significant economic losses due to lower yield and quality. Although Erysiphaceae has not been yet studied in some natural ecosystems, such as the Chaco region of Argentina, information from these natural ecosystems is critical. This research aimed to comprehensively study Pleochaeta prosopidis isolates from Neltuma alba and to assess the relationship between disease incidence and seedling quality in nursery conditions. This pathogen exhibited a partially endoparasitic life cycle, causing damage to the mesophyll of infected leaves. The phylogenetic analysis of the 28S rDNA sequences from N. alba seedlings with powdery mildew signs grouped with the reference sequence corresponding to Pl. prosopidis. The highest levels of disease incidence and severity occurred during winter and in plants kept in the nursery for over nine months (p < 0.001). Infected seedlings showed a significant reduction in height and diameter at neck height (p < 0.007), indicating a clear decline in quality. This study provides the first comprehensive description of Pl. prosopidis in N. alba, highlighting its impact on seedling development and nursery productivity.Instituto de SuelosFil: Giachino, María V. Universidad Nacional de Luján. Departamento de Tecnología; ArgentinaFil: Setten, Lorena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; ArgentinaFil: Taibo, Catalina. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones de Ciencias Veterinarias y Agronómicas; ArgentinaFil: Sabio y García, Julia V. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones de Ciencias Veterinarias y Agronómicas; ArgentinaFil: Craig, Elena B. Universidad Nacional de Luján. Departamento de Tecnología; ArgentinaFil: Ewens, Mauricio. Universidad Católica de Santiago del Estero. Estación Experimental Fernández; ArgentinaFil: Saparrat, Mario C.N. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal (INFIVE); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal (INFIVE); ArgentinaFil: Barrera, Viviana A. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; ArgentinaSpringer2026-03-18T13:06:45Z2026-03-18T13:06:45Z2026-02-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/25503https://link.springer.com/article/10.1007/s00284-026-04764-x1432-09910343-8651https://doi.org/10.1007/s00284-026-04764-xCurrent Microbiology 83 : article number 174. (2026)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/REDGEN-1137041/AR./PLAN DE GESTIÓN RED RECURSOS GENETICOS MICROBIANOSinfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-03-26T11:25:30Zoai:localhost:20.500.12123/25503instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-03-26 11:25:31.17INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
title Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
spellingShingle Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
Giachino, María V.
Pleochaeta
Oídio
Powdery Mildews
Argentina
Pleochaeta prosopidis
Neltuma alba
Gran Chaco
Moho en Polvo
title_short Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
title_full Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
title_fullStr Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
title_full_unstemmed Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
title_sort Pleochaeta prosopidis powdery mildew on Neltuma alba nurseries in the gran Chaco dry forests (Argentina)
dc.creator.none.fl_str_mv Giachino, María V.
Setten, Lorena
Taibo, Catalina Beatriz
Sabio Y Garcia, Julia Veronica
Craig, Elena B.
Ewens, Mauricio
Saparrat, Mario C.N.
Barrera, Viviana Andrea
author Giachino, María V.
author_facet Giachino, María V.
Setten, Lorena
Taibo, Catalina Beatriz
Sabio Y Garcia, Julia Veronica
Craig, Elena B.
Ewens, Mauricio
Saparrat, Mario C.N.
Barrera, Viviana Andrea
author_role author
author2 Setten, Lorena
Taibo, Catalina Beatriz
Sabio Y Garcia, Julia Veronica
Craig, Elena B.
Ewens, Mauricio
Saparrat, Mario C.N.
Barrera, Viviana Andrea
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Pleochaeta
Oídio
Powdery Mildews
Argentina
Pleochaeta prosopidis
Neltuma alba
Gran Chaco
Moho en Polvo
topic Pleochaeta
Oídio
Powdery Mildews
Argentina
Pleochaeta prosopidis
Neltuma alba
Gran Chaco
Moho en Polvo
dc.description.none.fl_txt_mv In forest nurseries, maintaining plant health is essential for producing high-quality seedlings. Effective sanitary management relies on continuous monitoring throughout the crop cycle. Powdery mildew, caused by fungi in the Erysiphaceae family, extracts nutritional plant reserves, thus reducing its productive potential and causing significant economic losses due to lower yield and quality. Although Erysiphaceae has not been yet studied in some natural ecosystems, such as the Chaco region of Argentina, information from these natural ecosystems is critical. This research aimed to comprehensively study Pleochaeta prosopidis isolates from Neltuma alba and to assess the relationship between disease incidence and seedling quality in nursery conditions. This pathogen exhibited a partially endoparasitic life cycle, causing damage to the mesophyll of infected leaves. The phylogenetic analysis of the 28S rDNA sequences from N. alba seedlings with powdery mildew signs grouped with the reference sequence corresponding to Pl. prosopidis. The highest levels of disease incidence and severity occurred during winter and in plants kept in the nursery for over nine months (p < 0.001). Infected seedlings showed a significant reduction in height and diameter at neck height (p < 0.007), indicating a clear decline in quality. This study provides the first comprehensive description of Pl. prosopidis in N. alba, highlighting its impact on seedling development and nursery productivity.
Instituto de Suelos
Fil: Giachino, María V. Universidad Nacional de Luján. Departamento de Tecnología; Argentina
Fil: Setten, Lorena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina
Fil: Taibo, Catalina. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones de Ciencias Veterinarias y Agronómicas; Argentina
Fil: Sabio y García, Julia V. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones de Ciencias Veterinarias y Agronómicas; Argentina
Fil: Craig, Elena B. Universidad Nacional de Luján. Departamento de Tecnología; Argentina
Fil: Ewens, Mauricio. Universidad Católica de Santiago del Estero. Estación Experimental Fernández; Argentina
Fil: Saparrat, Mario C.N. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal (INFIVE); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Barrera, Viviana A. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina
description In forest nurseries, maintaining plant health is essential for producing high-quality seedlings. Effective sanitary management relies on continuous monitoring throughout the crop cycle. Powdery mildew, caused by fungi in the Erysiphaceae family, extracts nutritional plant reserves, thus reducing its productive potential and causing significant economic losses due to lower yield and quality. Although Erysiphaceae has not been yet studied in some natural ecosystems, such as the Chaco region of Argentina, information from these natural ecosystems is critical. This research aimed to comprehensively study Pleochaeta prosopidis isolates from Neltuma alba and to assess the relationship between disease incidence and seedling quality in nursery conditions. This pathogen exhibited a partially endoparasitic life cycle, causing damage to the mesophyll of infected leaves. The phylogenetic analysis of the 28S rDNA sequences from N. alba seedlings with powdery mildew signs grouped with the reference sequence corresponding to Pl. prosopidis. The highest levels of disease incidence and severity occurred during winter and in plants kept in the nursery for over nine months (p < 0.001). Infected seedlings showed a significant reduction in height and diameter at neck height (p < 0.007), indicating a clear decline in quality. This study provides the first comprehensive description of Pl. prosopidis in N. alba, highlighting its impact on seedling development and nursery productivity.
publishDate 2026
dc.date.none.fl_str_mv 2026-03-18T13:06:45Z
2026-03-18T13:06:45Z
2026-02-13
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/25503
https://link.springer.com/article/10.1007/s00284-026-04764-x
1432-0991
0343-8651
https://doi.org/10.1007/s00284-026-04764-x
url http://hdl.handle.net/20.500.12123/25503
https://link.springer.com/article/10.1007/s00284-026-04764-x
https://doi.org/10.1007/s00284-026-04764-x
identifier_str_mv 1432-0991
0343-8651
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/REDGEN-1137041/AR./PLAN DE GESTIÓN RED RECURSOS GENETICOS MICROBIANOS
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Current Microbiology 83 : article number 174. (2026)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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