Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes
Autor(a) principal: | |
---|---|
Data de Publicação: | 2008 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500012 |
Resumo: | Some diazotrophic bacteria can fix nitrogen biologically in gramineous host plants. Generally, gramineous plants are also associated with mycorrhizal fungi, that can improve mainly plant P uptake. Among the factors affecting plant-microbe interactions, the plant genotype plays an important role. This study evaluates the effect of diazotrophic bacteria and an arbuscular mycorrhizal fungus (AMF), on five genotypes of maize (Zea mays L.), in relation to plant biomass, shoot N and P concentrations, and fine root morphological traits. The experimental design was entirely randomized in a factorial 5 × 4 × 2 arrangement, i.e., five maize genotypes (hybrids C333B, AS3466, and PREMIUM, and the inbreed lines lg40897-1 and lg40505-1), three diazotrophic bacteria (Azospirillum lipoferum, A. amazonense, and Burkholderia sp.) in addition to a control without bacterial inoculation, co-inoculated or not with the AMF Glomus clarum. The non-mycorrhizal plants inoculated with Azospirillum exhibited the highest N concentrations. The lines lg40897-1 and lg40505-1 showed higher P concentrations as compared to the hybrids, mainly when colonized by AMF. The higher levels of mycorrhizal colonization (90%) occurred in the C333B and lg40897-1 genotypes, which also exhibited a greater root diameter. Mycorrhiza increased shoot and root biomass, besides root traits as total length, specific length, total surface, and incidence of root hairs in all genotypes. In addition, mycorrhiza also stimulated the root colonization by diazotrophic bacteria. The bacteria did not affect root morphological traits and mycorrhizal colonization. |
id |
USP-18_f78ad820ab6cd1dde07802d28d0be9a2 |
---|---|
oai_identifier_str |
oai:scielo:S0103-90162008000500012 |
network_acronym_str |
USP-18 |
network_name_str |
Scientia Agrícola (Online) |
repository_id_str |
|
spelling |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypesAzospirillumbiological nitrogen fixationmycorrhizaroot morphologySome diazotrophic bacteria can fix nitrogen biologically in gramineous host plants. Generally, gramineous plants are also associated with mycorrhizal fungi, that can improve mainly plant P uptake. Among the factors affecting plant-microbe interactions, the plant genotype plays an important role. This study evaluates the effect of diazotrophic bacteria and an arbuscular mycorrhizal fungus (AMF), on five genotypes of maize (Zea mays L.), in relation to plant biomass, shoot N and P concentrations, and fine root morphological traits. The experimental design was entirely randomized in a factorial 5 × 4 × 2 arrangement, i.e., five maize genotypes (hybrids C333B, AS3466, and PREMIUM, and the inbreed lines lg40897-1 and lg40505-1), three diazotrophic bacteria (Azospirillum lipoferum, A. amazonense, and Burkholderia sp.) in addition to a control without bacterial inoculation, co-inoculated or not with the AMF Glomus clarum. The non-mycorrhizal plants inoculated with Azospirillum exhibited the highest N concentrations. The lines lg40897-1 and lg40505-1 showed higher P concentrations as compared to the hybrids, mainly when colonized by AMF. The higher levels of mycorrhizal colonization (90%) occurred in the C333B and lg40897-1 genotypes, which also exhibited a greater root diameter. Mycorrhiza increased shoot and root biomass, besides root traits as total length, specific length, total surface, and incidence of root hairs in all genotypes. In addition, mycorrhiza also stimulated the root colonization by diazotrophic bacteria. The bacteria did not affect root morphological traits and mycorrhizal colonization.Escola Superior de Agricultura "Luiz de Queiroz"2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500012Scientia Agricola v.65 n.5 2008reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162008000500012info:eu-repo/semantics/openAccessMiyauchi,Marina Yumi HortaLima,Dáfila SantosNogueira,Marco AntonioLovato,Gisele MilaniMurate,Letícia SayuriCruz,Márcio FerreiraFerreira,Josué MaldonadoZangaro,WaldemarAndrade,Galdinoeng2008-09-16T00:00:00Zoai:scielo:S0103-90162008000500012Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2008-09-16T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes |
title |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes |
spellingShingle |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes Miyauchi,Marina Yumi Horta Azospirillum biological nitrogen fixation mycorrhiza root morphology |
title_short |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes |
title_full |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes |
title_fullStr |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes |
title_full_unstemmed |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes |
title_sort |
Interactions between diazotrophic bacteria and mycorrhizal fungus in maize genotypes |
author |
Miyauchi,Marina Yumi Horta |
author_facet |
Miyauchi,Marina Yumi Horta Lima,Dáfila Santos Nogueira,Marco Antonio Lovato,Gisele Milani Murate,Letícia Sayuri Cruz,Márcio Ferreira Ferreira,Josué Maldonado Zangaro,Waldemar Andrade,Galdino |
author_role |
author |
author2 |
Lima,Dáfila Santos Nogueira,Marco Antonio Lovato,Gisele Milani Murate,Letícia Sayuri Cruz,Márcio Ferreira Ferreira,Josué Maldonado Zangaro,Waldemar Andrade,Galdino |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Miyauchi,Marina Yumi Horta Lima,Dáfila Santos Nogueira,Marco Antonio Lovato,Gisele Milani Murate,Letícia Sayuri Cruz,Márcio Ferreira Ferreira,Josué Maldonado Zangaro,Waldemar Andrade,Galdino |
dc.subject.por.fl_str_mv |
Azospirillum biological nitrogen fixation mycorrhiza root morphology |
topic |
Azospirillum biological nitrogen fixation mycorrhiza root morphology |
description |
Some diazotrophic bacteria can fix nitrogen biologically in gramineous host plants. Generally, gramineous plants are also associated with mycorrhizal fungi, that can improve mainly plant P uptake. Among the factors affecting plant-microbe interactions, the plant genotype plays an important role. This study evaluates the effect of diazotrophic bacteria and an arbuscular mycorrhizal fungus (AMF), on five genotypes of maize (Zea mays L.), in relation to plant biomass, shoot N and P concentrations, and fine root morphological traits. The experimental design was entirely randomized in a factorial 5 × 4 × 2 arrangement, i.e., five maize genotypes (hybrids C333B, AS3466, and PREMIUM, and the inbreed lines lg40897-1 and lg40505-1), three diazotrophic bacteria (Azospirillum lipoferum, A. amazonense, and Burkholderia sp.) in addition to a control without bacterial inoculation, co-inoculated or not with the AMF Glomus clarum. The non-mycorrhizal plants inoculated with Azospirillum exhibited the highest N concentrations. The lines lg40897-1 and lg40505-1 showed higher P concentrations as compared to the hybrids, mainly when colonized by AMF. The higher levels of mycorrhizal colonization (90%) occurred in the C333B and lg40897-1 genotypes, which also exhibited a greater root diameter. Mycorrhiza increased shoot and root biomass, besides root traits as total length, specific length, total surface, and incidence of root hairs in all genotypes. In addition, mycorrhiza also stimulated the root colonization by diazotrophic bacteria. The bacteria did not affect root morphological traits and mycorrhizal colonization. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500012 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-90162008000500012 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.65 n.5 2008 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936461037600768 |