Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico

Plant cover loss due to changes in land use promotes a decrease in spore diversity of arbuscular mycorrhizal fungi (AMF), viable mycelium and, therefore, in AMF colonization, this has an influence in community diversity and, as a consequence, in its recovery. To evaluate different AMF propagules, ni...

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Autores: Patricia Guadarrama, Silvia Castillo-Argüero, José A. Ramos-Zapata, Sara L. Camargo-Ricalde, Javier Álvarez-Sánchez
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Redalyc-UNAM
OAI Identifier:oai:redalyc.org:44918831019
Acceso en línea:https://www.redalyc.org/articulo.oa?id=44918831019
Access Level:acceso abierto
Palabra clave:Biología
AMF spores density
tropical dry forest
secondary vegetation
AMF field colonization
most probable number (MPN)
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spelling Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, MexicoPatricia GuadarramaSilvia Castillo-ArgüeroJosé A. Ramos-ZapataSara L. Camargo-RicaldeJavier Álvarez-SánchezBiologíaAMF spores densitytropical dry forestsecondary vegetationAMF field colonizationmost probable number (MPN)Plant cover loss due to changes in land use promotes a decrease in spore diversity of arbuscular mycorrhizal fungi (AMF), viable mycelium and, therefore, in AMF colonization, this has an influence in community diversity and, as a consequence, in its recovery. To evaluate different AMF propagules, nine plots in a tropical dry forest with secondary vegetation were selected: 0, 1, 7, 10, 14, 18, 22, 25, and 27 years after abandonment in Nizanda, Oaxaca, Mexico. The secondary vegetation with different stages of development is a consequence of slash and burn agriculture, and posterior abandonment. Soil samples (six per plot) were collected and percentage of AMF field colonization, extrarradical mycelium, viable spore density, infectivity and most probable number (MPN) of AMF propagules were quantified through a bioassay. Means for field colonization ranged between 40 % and 70 %, mean of total mycelium length was 15.7 ± 1.88 mg-1 dry soil, with significant differences between plots; however, more than 40 % of extracted mycelium was not viable, between 60 and 456 spores in 100 g of dry soil were recorded, but more than 64 % showed some kind of damage. Infectivity values fluctuated between 20 % and 50 %, while MPN showed a mean value of 85.42 ± 44.17 propagules (100 g dry soil). We conclude that secondary communities generated by elimination of vegetation with agricultural purposes in a dry forest in Nizanda do not show elimination of propagules, probably as a consequence of the low input agriculture practices in this area, which may encourage natural regeneration. Rev. Biol. Trop. 56 (1): 269-277. Epub 2008 March 31.Universidad de Costa Rica2008info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf0034-7744https://www.redalyc.org/articulo.oa?id=44918831019Revista de Biología Tropical (Costa Rica) Num.1 Vol.56reponame:Redalyc-UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMenhttp://www.redalyc.org/revista.oa?id=449Revista de Biología Tropicalinfo:eu-repo/semantics/openAccessoai:redalyc.org:449188310192025-09-03T18:05:48Z
dc.title.none.fl_str_mv Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
title Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
spellingShingle Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
Patricia Guadarrama
Biología
AMF spores density
tropical dry forest
secondary vegetation
AMF field colonization
most probable number (MPN)
title_short Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
title_full Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
title_fullStr Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
title_full_unstemmed Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
title_sort Propagules of arbuscular mycorrhizal fungi in a secondary dry forest of Oaxaca, Mexico
dc.creator.none.fl_str_mv Patricia Guadarrama
Silvia Castillo-Argüero
José A. Ramos-Zapata
Sara L. Camargo-Ricalde
Javier Álvarez-Sánchez
author Patricia Guadarrama
author_facet Patricia Guadarrama
Silvia Castillo-Argüero
José A. Ramos-Zapata
Sara L. Camargo-Ricalde
Javier Álvarez-Sánchez
author_role author
author2 Silvia Castillo-Argüero
José A. Ramos-Zapata
Sara L. Camargo-Ricalde
Javier Álvarez-Sánchez
author2_role author
author
author
author
dc.subject.none.fl_str_mv Biología
AMF spores density
tropical dry forest
secondary vegetation
AMF field colonization
most probable number (MPN)
topic Biología
AMF spores density
tropical dry forest
secondary vegetation
AMF field colonization
most probable number (MPN)
description Plant cover loss due to changes in land use promotes a decrease in spore diversity of arbuscular mycorrhizal fungi (AMF), viable mycelium and, therefore, in AMF colonization, this has an influence in community diversity and, as a consequence, in its recovery. To evaluate different AMF propagules, nine plots in a tropical dry forest with secondary vegetation were selected: 0, 1, 7, 10, 14, 18, 22, 25, and 27 years after abandonment in Nizanda, Oaxaca, Mexico. The secondary vegetation with different stages of development is a consequence of slash and burn agriculture, and posterior abandonment. Soil samples (six per plot) were collected and percentage of AMF field colonization, extrarradical mycelium, viable spore density, infectivity and most probable number (MPN) of AMF propagules were quantified through a bioassay. Means for field colonization ranged between 40 % and 70 %, mean of total mycelium length was 15.7 ± 1.88 mg-1 dry soil, with significant differences between plots; however, more than 40 % of extracted mycelium was not viable, between 60 and 456 spores in 100 g of dry soil were recorded, but more than 64 % showed some kind of damage. Infectivity values fluctuated between 20 % and 50 %, while MPN showed a mean value of 85.42 ± 44.17 propagules (100 g dry soil). We conclude that secondary communities generated by elimination of vegetation with agricultural purposes in a dry forest in Nizanda do not show elimination of propagules, probably as a consequence of the low input agriculture practices in this area, which may encourage natural regeneration. Rev. Biol. Trop. 56 (1): 269-277. Epub 2008 March 31.
publishDate 2008
dc.date.none.fl_str_mv 2008
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0034-7744
https://www.redalyc.org/articulo.oa?id=44918831019
identifier_str_mv 0034-7744
url https://www.redalyc.org/articulo.oa?id=44918831019
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=449
dc.rights.none.fl_str_mv Revista de Biología Tropical
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Revista de Biología Tropical
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad de Costa Rica
publisher.none.fl_str_mv Universidad de Costa Rica
dc.source.none.fl_str_mv Revista de Biología Tropical (Costa Rica) Num.1 Vol.56
reponame:Redalyc-UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Redalyc-UNAM
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repository.mail.fl_str_mv
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