Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods

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The absence of a methodology to analyze the micoflora in amaranth's seed, has motivated the performing of the present work. Seeds of two cultivars were sown (with and without disinfection process before sowing) on Petri dishes, some with "Blotter test" paper and others with five agari...

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Detalles Bibliográficos
Autores: Noelting, Maria C., Sandoval, Maria C., Abbiati, Nilda N.
Formato: artículo
Fecha de Publicación:2004
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revista UNMSM - Revista Peruana de Biología
Lenguaje:español
OAI Identifier:oai:ojs.csi.unmsm:article/2453
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2453
Nivel de acceso:acceso abierto
Materia:amaranth
Amaranthus
Phytopathology
Alternaria
seeds
agarized media
blotter test
amaranto
fitopatología
semillas
medios agarizados
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spelling Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methodsDeterminación de microorganismos fúngicos en semillas de Amaranto (Amaranthus spp.) mediante diferentes métodos de análisisNoelting, Maria C.Sandoval, Maria C.Abbiati, Nilda N.amaranthAmaranthusPhytopathologyAlternariaseedsagarized mediablotter testamarantoAmaranthusfitopatologíaAlternariasemillasmedios agarizadosblotter testThe absence of a methodology to analyze the micoflora in amaranth's seed, has motivated the performing of the present work. Seeds of two cultivars were sown (with and without disinfection process before sowing) on Petri dishes, some with "Blotter test" paper and others with five agarized culture media. All of them were placed in a chamber with 26 ºC± 2 and 16 h of photoperiod, and were incubated during seven days. After this period of time, the maximum number of different fungi genera developed on each substrate was registered, and the seed germination percentage was calculated. A total of fourteen genera of fungi (field and storage ones) were found, being Alternaria the most frequently isolated. In relation to the maximum number of fungi genera found, significant differences among the media analyzed (p>0,001) were detected, resulting the media APG, CZ and PCA the most effective ones. According to the disinfection treatment applied to the seeds before sowing, in general terms the fungi expansive growth was reduced. The germination percentage analysis revealed the presence of significant (p>0,001) interactions between amaranth cultivars and disinfection levels in four of the media analyzed, while in the remainder not significant interactions were registered.La ausencia de una metodología destinada al análisis de la micoflora en semillas de amaranto (Amaranthus spp.) ha motivado la realización del presente trabajo. A tal efecto, fueron sembradas semillas de dos cultivares (con y sin tratamiento de desinfección en forma previa a la siembra) en papel «Blotter test» y en cinco medios agarizados: Agar Papa Glucosado al 2% (APG), Agar Extracto de Glucosa Cloramfenicol (CYG), Agar Czapek (CZ), Agar para conteo en placa (PCA) y Agar Sabouraud (SAB). Los cajas fueron incubadas a 26 °C± 2 y 16 hs luz/8hs oscuridad de fotoperíodo durante siete días, a partir del cual se procedió a registrar el número máximo de géneros fúngicos desarrollados y el porcentaje de germinación de las semillas. Un total de catorce géneros fúngicos procedentes del campo y del almacenamiento fueron registrados, destacándose Alternaria por su mayor frecuencia de aislamiento. Al evaluar el número máximo de géneros fúngicos, se detectaron diferencias significativas entre los medios (p>0,001) resultando los medios APG, CZ y PCA los mas efectivos. Por otro lado, la desinfección aplicada a las semillas redujo en términos generales el desarrollo de hongos de crecimiento expansivo. El análisis de los datos correspondientes al porcentaje de germinación reveló la presencia de interacciones entre los cultivares y los niveles de desinfección significativas (p>0,001) en cuatro de los medios analizados; mientras que en el resto se registraron interacciones no significativas.Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas2004-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/245310.15381/rpb.v11i2.2453Revista Peruana de Biología; Vol 11 No 2 (2004); 169-178Revista Peruana de Biología; Vol. 11 Núm. 2 (2004); 169-1781727-99331561-0837reponame:Revista UNMSM - Revista Peruana de Biologíainstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2453/2151Derechos de autor 2004 Maria C. Noelting, Maria C. Sandoval, Nilda N. Abbiatihttp://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccess2021-06-01T17:47:37Zmail@mail.com -
dc.title.none.fl_str_mv Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
Determinación de microorganismos fúngicos en semillas de Amaranto (Amaranthus spp.) mediante diferentes métodos de análisis
title Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
spellingShingle Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
Noelting, Maria C.
amaranth
Amaranthus
Phytopathology
Alternaria
seeds
agarized media
blotter test
amaranto
Amaranthus
fitopatología
Alternaria
semillas
medios agarizados
blotter test
title_short Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
title_full Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
title_fullStr Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
title_full_unstemmed Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
title_sort Determination of fungi microorganisms on Amaranto seeds (Amaranthus spp.) by different analysis methods
dc.creator.none.fl_str_mv Noelting, Maria C.
Sandoval, Maria C.
Abbiati, Nilda N.
author Noelting, Maria C.
author_facet Noelting, Maria C.
Sandoval, Maria C.
Abbiati, Nilda N.
author_role author
author2 Sandoval, Maria C.
Abbiati, Nilda N.
author2_role author
author
dc.subject.none.fl_str_mv amaranth
Amaranthus
Phytopathology
Alternaria
seeds
agarized media
blotter test
amaranto
Amaranthus
fitopatología
Alternaria
semillas
medios agarizados
blotter test
topic amaranth
Amaranthus
Phytopathology
Alternaria
seeds
agarized media
blotter test
amaranto
Amaranthus
fitopatología
Alternaria
semillas
medios agarizados
blotter test
dc.description.none.fl_txt_mv The absence of a methodology to analyze the micoflora in amaranth's seed, has motivated the performing of the present work. Seeds of two cultivars were sown (with and without disinfection process before sowing) on Petri dishes, some with "Blotter test" paper and others with five agarized culture media. All of them were placed in a chamber with 26 ºC± 2 and 16 h of photoperiod, and were incubated during seven days. After this period of time, the maximum number of different fungi genera developed on each substrate was registered, and the seed germination percentage was calculated. A total of fourteen genera of fungi (field and storage ones) were found, being Alternaria the most frequently isolated. In relation to the maximum number of fungi genera found, significant differences among the media analyzed (p>0,001) were detected, resulting the media APG, CZ and PCA the most effective ones. According to the disinfection treatment applied to the seeds before sowing, in general terms the fungi expansive growth was reduced. The germination percentage analysis revealed the presence of significant (p>0,001) interactions between amaranth cultivars and disinfection levels in four of the media analyzed, while in the remainder not significant interactions were registered.
La ausencia de una metodología destinada al análisis de la micoflora en semillas de amaranto (Amaranthus spp.) ha motivado la realización del presente trabajo. A tal efecto, fueron sembradas semillas de dos cultivares (con y sin tratamiento de desinfección en forma previa a la siembra) en papel «Blotter test» y en cinco medios agarizados: Agar Papa Glucosado al 2% (APG), Agar Extracto de Glucosa Cloramfenicol (CYG), Agar Czapek (CZ), Agar para conteo en placa (PCA) y Agar Sabouraud (SAB). Los cajas fueron incubadas a 26 °C± 2 y 16 hs luz/8hs oscuridad de fotoperíodo durante siete días, a partir del cual se procedió a registrar el número máximo de géneros fúngicos desarrollados y el porcentaje de germinación de las semillas. Un total de catorce géneros fúngicos procedentes del campo y del almacenamiento fueron registrados, destacándose Alternaria por su mayor frecuencia de aislamiento. Al evaluar el número máximo de géneros fúngicos, se detectaron diferencias significativas entre los medios (p>0,001) resultando los medios APG, CZ y PCA los mas efectivos. Por otro lado, la desinfección aplicada a las semillas redujo en términos generales el desarrollo de hongos de crecimiento expansivo. El análisis de los datos correspondientes al porcentaje de germinación reveló la presencia de interacciones entre los cultivares y los niveles de desinfección significativas (p>0,001) en cuatro de los medios analizados; mientras que en el resto se registraron interacciones no significativas.
description The absence of a methodology to analyze the micoflora in amaranth's seed, has motivated the performing of the present work. Seeds of two cultivars were sown (with and without disinfection process before sowing) on Petri dishes, some with "Blotter test" paper and others with five agarized culture media. All of them were placed in a chamber with 26 ºC± 2 and 16 h of photoperiod, and were incubated during seven days. After this period of time, the maximum number of different fungi genera developed on each substrate was registered, and the seed germination percentage was calculated. A total of fourteen genera of fungi (field and storage ones) were found, being Alternaria the most frequently isolated. In relation to the maximum number of fungi genera found, significant differences among the media analyzed (p>0,001) were detected, resulting the media APG, CZ and PCA the most effective ones. According to the disinfection treatment applied to the seeds before sowing, in general terms the fungi expansive growth was reduced. The germination percentage analysis revealed the presence of significant (p>0,001) interactions between amaranth cultivars and disinfection levels in four of the media analyzed, while in the remainder not significant interactions were registered.
publishDate 2004
dc.date.none.fl_str_mv 2004-12-30
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2453
10.15381/rpb.v11i2.2453
url https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2453
identifier_str_mv 10.15381/rpb.v11i2.2453
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2453/2151
dc.rights.none.fl_str_mv Derechos de autor 2004 Maria C. Noelting, Maria C. Sandoval, Nilda N. Abbiati
http://creativecommons.org/licenses/by-nc-sa/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2004 Maria C. Noelting, Maria C. Sandoval, Nilda N. Abbiati
http://creativecommons.org/licenses/by-nc-sa/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas
publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas
dc.source.none.fl_str_mv Revista Peruana de Biología; Vol 11 No 2 (2004); 169-178
Revista Peruana de Biología; Vol. 11 Núm. 2 (2004); 169-178
1727-9933
1561-0837
reponame:Revista UNMSM - Revista Peruana de Biología
instname:Universidad Nacional Mayor de San Marcos
instacron:UNMSM
reponame_str Revista UNMSM - Revista Peruana de Biología
collection Revista UNMSM - Revista Peruana de Biología
instname_str Universidad Nacional Mayor de San Marcos
instacron_str UNMSM
institution UNMSM
repository.name.fl_str_mv -
repository.mail.fl_str_mv mail@mail.com
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