First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil
- Autores
- Conforto, C.; Bernardi Lima, Nelson; Garcete-Gómez, J. M.; Câmara, M. P. S.; Michereff, S. J.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In 2015, cladodes of Nopalea cochenillifera showing brown and circular to elliptical spots were sampled from 12 fields of the State of Pernambuco, Brazil with a prevalence of 100%. Small pieces of symptomatic tissues were surface sterilized, plated onto potato dextrose agar, and kept at 28°C for 7 days. Four isolates (CMM 2118, CMM 2166, CMM 2207, CMM 2228), produced white colonies, reverse pale yellow, conidia, hyaline, fusiform, 10.4-18.4 × 2.8-4.3 μm (n = 50). One isolate (CMM 2159) presented white colonies, becoming grey at the centre, conidia hyaline, cylindrical, 11.13-17.3 × 3.9-5.4 μm (n = 50). These morphological characteristics are consistent with the descriptions of C. siamense and C. fructicola, respectively (Prihastuti et al., 2009). For molecular identification, the ITS, TUB-2 and ApMAT loci were amplified, sequenced and analyzed using Bayesian inference, including published ITS, TUB-2 and ApMAT data for Colletotrichum spp. (Sharma et al., 2014). The isolated fungi grouped with the C. siamense and C. fructicola clades. Sequences of the isolates were deposited in GenBank (ITS, KX129708 to KX129712; TUB-2, KX129713 to KX129717; and ApMAT, KX129718 to KX129722). Pathogenicity tests with all five isolates of Colletotrichum were conducted on 15 healthy superficially sterilized detached cladodes per isolate. Scalpel-wounded and unwounded cladodes were inoculated with 2 × 105 conidial suspensions. Untreated controls were inoculated with sterile water. Cladodes were kept in a humid chamber for 72 h at 25°C in the dark. Fifteen days after inoculation all cladodes showed brown spots, with an average length of 1.1 cm and depth of 0.5 cm. Control cladodes remained symptomless. To our knowledge, this is the first report of C. fructicola and C. siamense causing cladode brown spot in Nopalea cochenillifera in Brazil and worldwide.
Fil: Conforto, C.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba; Argentina
Fil: Bernardi Lima, Nelson. Conicet - Instituto Nacional de Tecnologia Agropecuaria; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Patología Vegetal; Argentina
Fil: Garcete-Gómez, J. M.. Universidad Federal Rural Pernambuco; Brasil
Fil: Câmara, M. P. S.. Universidad Federal Rural Pernambuco; Brasil
Fil: Michereff, S. J.. Universidad Federal Rural Pernambuco; Brasil - Materia
-
Nopalea Cochenillefera
Colletotrichum
Brazil - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/72913
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First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in BrazilConforto, C.Bernardi Lima, NelsonGarcete-Gómez, J. M.Câmara, M. P. S.Michereff, S. J.Nopalea CochenilleferaColletotrichumBrazilhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4In 2015, cladodes of Nopalea cochenillifera showing brown and circular to elliptical spots were sampled from 12 fields of the State of Pernambuco, Brazil with a prevalence of 100%. Small pieces of symptomatic tissues were surface sterilized, plated onto potato dextrose agar, and kept at 28°C for 7 days. Four isolates (CMM 2118, CMM 2166, CMM 2207, CMM 2228), produced white colonies, reverse pale yellow, conidia, hyaline, fusiform, 10.4-18.4 × 2.8-4.3 μm (n = 50). One isolate (CMM 2159) presented white colonies, becoming grey at the centre, conidia hyaline, cylindrical, 11.13-17.3 × 3.9-5.4 μm (n = 50). These morphological characteristics are consistent with the descriptions of C. siamense and C. fructicola, respectively (Prihastuti et al., 2009). For molecular identification, the ITS, TUB-2 and ApMAT loci were amplified, sequenced and analyzed using Bayesian inference, including published ITS, TUB-2 and ApMAT data for Colletotrichum spp. (Sharma et al., 2014). The isolated fungi grouped with the C. siamense and C. fructicola clades. Sequences of the isolates were deposited in GenBank (ITS, KX129708 to KX129712; TUB-2, KX129713 to KX129717; and ApMAT, KX129718 to KX129722). Pathogenicity tests with all five isolates of Colletotrichum were conducted on 15 healthy superficially sterilized detached cladodes per isolate. Scalpel-wounded and unwounded cladodes were inoculated with 2 × 105 conidial suspensions. Untreated controls were inoculated with sterile water. Cladodes were kept in a humid chamber for 72 h at 25°C in the dark. Fifteen days after inoculation all cladodes showed brown spots, with an average length of 1.1 cm and depth of 0.5 cm. Control cladodes remained symptomless. To our knowledge, this is the first report of C. fructicola and C. siamense causing cladode brown spot in Nopalea cochenillifera in Brazil and worldwide.Fil: Conforto, C.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba; ArgentinaFil: Bernardi Lima, Nelson. Conicet - Instituto Nacional de Tecnologia Agropecuaria; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Patología Vegetal; ArgentinaFil: Garcete-Gómez, J. M.. Universidad Federal Rural Pernambuco; BrasilFil: Câmara, M. P. S.. Universidad Federal Rural Pernambuco; BrasilFil: Michereff, S. J.. Universidad Federal Rural Pernambuco; BrasilEdizioni Ets2017-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72913Conforto, C. ; Bernardi Lima, Nelson; Garcete-Gómez, J. M.; Câmara, M. P. S.; Michereff, S. J.; First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil; Edizioni Ets; Journal Of Plant Pathology; 99; 3; 11-20171125-4653CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sipav.org/main/jpp/index.php/jpp/article/view/3974info:eu-repo/semantics/altIdentifier/doi/10.4454/jpp.v99i3.3974info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:03Zoai:ri.conicet.gov.ar:11336/72913instacron: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 09:45:03.59CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil |
title |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil |
spellingShingle |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil Conforto, C. Nopalea Cochenillefera Colletotrichum Brazil |
title_short |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil |
title_full |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil |
title_fullStr |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil |
title_full_unstemmed |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil |
title_sort |
First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil |
dc.creator.none.fl_str_mv |
Conforto, C. Bernardi Lima, Nelson Garcete-Gómez, J. M. Câmara, M. P. S. Michereff, S. J. |
author |
Conforto, C. |
author_facet |
Conforto, C. Bernardi Lima, Nelson Garcete-Gómez, J. M. Câmara, M. P. S. Michereff, S. J. |
author_role |
author |
author2 |
Bernardi Lima, Nelson Garcete-Gómez, J. M. Câmara, M. P. S. Michereff, S. J. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Nopalea Cochenillefera Colletotrichum Brazil |
topic |
Nopalea Cochenillefera Colletotrichum Brazil |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
dc.description.none.fl_txt_mv |
In 2015, cladodes of Nopalea cochenillifera showing brown and circular to elliptical spots were sampled from 12 fields of the State of Pernambuco, Brazil with a prevalence of 100%. Small pieces of symptomatic tissues were surface sterilized, plated onto potato dextrose agar, and kept at 28°C for 7 days. Four isolates (CMM 2118, CMM 2166, CMM 2207, CMM 2228), produced white colonies, reverse pale yellow, conidia, hyaline, fusiform, 10.4-18.4 × 2.8-4.3 μm (n = 50). One isolate (CMM 2159) presented white colonies, becoming grey at the centre, conidia hyaline, cylindrical, 11.13-17.3 × 3.9-5.4 μm (n = 50). These morphological characteristics are consistent with the descriptions of C. siamense and C. fructicola, respectively (Prihastuti et al., 2009). For molecular identification, the ITS, TUB-2 and ApMAT loci were amplified, sequenced and analyzed using Bayesian inference, including published ITS, TUB-2 and ApMAT data for Colletotrichum spp. (Sharma et al., 2014). The isolated fungi grouped with the C. siamense and C. fructicola clades. Sequences of the isolates were deposited in GenBank (ITS, KX129708 to KX129712; TUB-2, KX129713 to KX129717; and ApMAT, KX129718 to KX129722). Pathogenicity tests with all five isolates of Colletotrichum were conducted on 15 healthy superficially sterilized detached cladodes per isolate. Scalpel-wounded and unwounded cladodes were inoculated with 2 × 105 conidial suspensions. Untreated controls were inoculated with sterile water. Cladodes were kept in a humid chamber for 72 h at 25°C in the dark. Fifteen days after inoculation all cladodes showed brown spots, with an average length of 1.1 cm and depth of 0.5 cm. Control cladodes remained symptomless. To our knowledge, this is the first report of C. fructicola and C. siamense causing cladode brown spot in Nopalea cochenillifera in Brazil and worldwide. Fil: Conforto, C.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba; Argentina Fil: Bernardi Lima, Nelson. Conicet - Instituto Nacional de Tecnologia Agropecuaria; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Patología Vegetal; Argentina Fil: Garcete-Gómez, J. M.. Universidad Federal Rural Pernambuco; Brasil Fil: Câmara, M. P. S.. Universidad Federal Rural Pernambuco; Brasil Fil: Michereff, S. J.. Universidad Federal Rural Pernambuco; Brasil |
description |
In 2015, cladodes of Nopalea cochenillifera showing brown and circular to elliptical spots were sampled from 12 fields of the State of Pernambuco, Brazil with a prevalence of 100%. Small pieces of symptomatic tissues were surface sterilized, plated onto potato dextrose agar, and kept at 28°C for 7 days. Four isolates (CMM 2118, CMM 2166, CMM 2207, CMM 2228), produced white colonies, reverse pale yellow, conidia, hyaline, fusiform, 10.4-18.4 × 2.8-4.3 μm (n = 50). One isolate (CMM 2159) presented white colonies, becoming grey at the centre, conidia hyaline, cylindrical, 11.13-17.3 × 3.9-5.4 μm (n = 50). These morphological characteristics are consistent with the descriptions of C. siamense and C. fructicola, respectively (Prihastuti et al., 2009). For molecular identification, the ITS, TUB-2 and ApMAT loci were amplified, sequenced and analyzed using Bayesian inference, including published ITS, TUB-2 and ApMAT data for Colletotrichum spp. (Sharma et al., 2014). The isolated fungi grouped with the C. siamense and C. fructicola clades. Sequences of the isolates were deposited in GenBank (ITS, KX129708 to KX129712; TUB-2, KX129713 to KX129717; and ApMAT, KX129718 to KX129722). Pathogenicity tests with all five isolates of Colletotrichum were conducted on 15 healthy superficially sterilized detached cladodes per isolate. Scalpel-wounded and unwounded cladodes were inoculated with 2 × 105 conidial suspensions. Untreated controls were inoculated with sterile water. Cladodes were kept in a humid chamber for 72 h at 25°C in the dark. Fifteen days after inoculation all cladodes showed brown spots, with an average length of 1.1 cm and depth of 0.5 cm. Control cladodes remained symptomless. To our knowledge, this is the first report of C. fructicola and C. siamense causing cladode brown spot in Nopalea cochenillifera in Brazil and worldwide. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11 |
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/11336/72913 Conforto, C. ; Bernardi Lima, Nelson; Garcete-Gómez, J. M.; Câmara, M. P. S.; Michereff, S. J.; First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil; Edizioni Ets; Journal Of Plant Pathology; 99; 3; 11-2017 1125-4653 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/72913 |
identifier_str_mv |
Conforto, C. ; Bernardi Lima, Nelson; Garcete-Gómez, J. M.; Câmara, M. P. S.; Michereff, S. J.; First report of Colletotrichum siamense and C. fructicola causing cladode brown spot in Nopalea cochenillifera in Brazil; Edizioni Ets; Journal Of Plant Pathology; 99; 3; 11-2017 1125-4653 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.sipav.org/main/jpp/index.php/jpp/article/view/3974 info:eu-repo/semantics/altIdentifier/doi/10.4454/jpp.v99i3.3974 |
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 |
dc.publisher.none.fl_str_mv |
Edizioni Ets |
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Edizioni Ets |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |