Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger

Detalhes bibliográficos
Autor(a) principal: Oliveira, Samantha Caixeta de
Data de Publicação: 2014
Outros Autores: Mendes, Gilberto de Oliveira, Silva, Ubiana Cássia da, Silva, Ivo Ribeiro da, Ribeiro Júnior, José Ivo, Costa, Maurício Dutra
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.1007/s13213-014-0914-z
http://www.locus.ufv.br/handle/123456789/21532
Resumo: Microbial solubilization of rock phosphate (RP) is mainly achieved by the production of organic acids and medium acidification through H+ release. During RP solubilization, mineral nutrient availability is likely to be critical for determining how much carbon is channeled either for metabolite synthesis or for microbial growth, influencing organic acid release by microorganisms. Thus, the objective of this work was to study the relationships between the concentration of mineral nutrients in the growth medium and the efficiency of RP solubilization by Aspergillus niger FS1. For this, the fungus was grown in Czapek medium containing 0, 1, 2, 10, 50, and 100 % of its original concentration of mineral nutrients. Decreasing mineral availability in the growth medium led to decreases in fungal biomass and solubilized P, and increases in titratable acidity and solubilization efficiency as expressed by mg solubilized P per g fungal biomass (YP/B), indicating a shift in fungal metabolism from biomass production to organic acid release. The transfer of pre-grown biomass to media with or without added minerals confirmed that lower mineral availability increases YP/B and led to the solubilization of 76 % of P present in Patos RP. These observations open new perspectives on improving RP solubilization systems by manipulating mineral nutrient availability in the medium, with consequent gains in cost reduction.
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spelling Oliveira, Samantha Caixeta deMendes, Gilberto de OliveiraSilva, Ubiana Cássia daSilva, Ivo Ribeiro daRibeiro Júnior, José IvoCosta, Maurício Dutra2018-08-30T12:03:10Z2018-08-30T12:03:10Z2014-05-3018692044http://dx.doi.org/10.1007/s13213-014-0914-zhttp://www.locus.ufv.br/handle/123456789/21532Microbial solubilization of rock phosphate (RP) is mainly achieved by the production of organic acids and medium acidification through H+ release. During RP solubilization, mineral nutrient availability is likely to be critical for determining how much carbon is channeled either for metabolite synthesis or for microbial growth, influencing organic acid release by microorganisms. Thus, the objective of this work was to study the relationships between the concentration of mineral nutrients in the growth medium and the efficiency of RP solubilization by Aspergillus niger FS1. For this, the fungus was grown in Czapek medium containing 0, 1, 2, 10, 50, and 100 % of its original concentration of mineral nutrients. Decreasing mineral availability in the growth medium led to decreases in fungal biomass and solubilized P, and increases in titratable acidity and solubilization efficiency as expressed by mg solubilized P per g fungal biomass (YP/B), indicating a shift in fungal metabolism from biomass production to organic acid release. The transfer of pre-grown biomass to media with or without added minerals confirmed that lower mineral availability increases YP/B and led to the solubilization of 76 % of P present in Patos RP. These observations open new perspectives on improving RP solubilization systems by manipulating mineral nutrient availability in the medium, with consequent gains in cost reduction.engAnnals of Microbiologyv. 65, n. 2, p. 745– 751, jun. 2015Springer Nature Switzerland AG.info:eu-repo/semantics/openAccessRock phosphateP-solubilizationFilamentous fungiFermentation processDecreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus nigerinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf340265https://locus.ufv.br//bitstream/123456789/21532/1/artigo.pdf39340d86ccb201c7d04083b6fb3d1459MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/21532/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILartigo.pdf.jpgartigo.pdf.jpgIM Thumbnailimage/jpeg5046https://locus.ufv.br//bitstream/123456789/21532/3/artigo.pdf.jpg39105063fd7d590dda72b471581b3a51MD53123456789/215322018-08-30 23:00:38.714oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-08-31T02:00:38LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
title Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
spellingShingle Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
Oliveira, Samantha Caixeta de
Rock phosphate
P-solubilization
Filamentous fungi
Fermentation process
title_short Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
title_full Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
title_fullStr Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
title_full_unstemmed Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
title_sort Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger
author Oliveira, Samantha Caixeta de
author_facet Oliveira, Samantha Caixeta de
Mendes, Gilberto de Oliveira
Silva, Ubiana Cássia da
Silva, Ivo Ribeiro da
Ribeiro Júnior, José Ivo
Costa, Maurício Dutra
author_role author
author2 Mendes, Gilberto de Oliveira
Silva, Ubiana Cássia da
Silva, Ivo Ribeiro da
Ribeiro Júnior, José Ivo
Costa, Maurício Dutra
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Samantha Caixeta de
Mendes, Gilberto de Oliveira
Silva, Ubiana Cássia da
Silva, Ivo Ribeiro da
Ribeiro Júnior, José Ivo
Costa, Maurício Dutra
dc.subject.pt-BR.fl_str_mv Rock phosphate
P-solubilization
Filamentous fungi
Fermentation process
topic Rock phosphate
P-solubilization
Filamentous fungi
Fermentation process
description Microbial solubilization of rock phosphate (RP) is mainly achieved by the production of organic acids and medium acidification through H+ release. During RP solubilization, mineral nutrient availability is likely to be critical for determining how much carbon is channeled either for metabolite synthesis or for microbial growth, influencing organic acid release by microorganisms. Thus, the objective of this work was to study the relationships between the concentration of mineral nutrients in the growth medium and the efficiency of RP solubilization by Aspergillus niger FS1. For this, the fungus was grown in Czapek medium containing 0, 1, 2, 10, 50, and 100 % of its original concentration of mineral nutrients. Decreasing mineral availability in the growth medium led to decreases in fungal biomass and solubilized P, and increases in titratable acidity and solubilization efficiency as expressed by mg solubilized P per g fungal biomass (YP/B), indicating a shift in fungal metabolism from biomass production to organic acid release. The transfer of pre-grown biomass to media with or without added minerals confirmed that lower mineral availability increases YP/B and led to the solubilization of 76 % of P present in Patos RP. These observations open new perspectives on improving RP solubilization systems by manipulating mineral nutrient availability in the medium, with consequent gains in cost reduction.
publishDate 2014
dc.date.issued.fl_str_mv 2014-05-30
dc.date.accessioned.fl_str_mv 2018-08-30T12:03:10Z
dc.date.available.fl_str_mv 2018-08-30T12:03:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s13213-014-0914-z
http://www.locus.ufv.br/handle/123456789/21532
dc.identifier.issn.none.fl_str_mv 18692044
identifier_str_mv 18692044
url http://dx.doi.org/10.1007/s13213-014-0914-z
http://www.locus.ufv.br/handle/123456789/21532
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv v. 65, n. 2, p. 745– 751, jun. 2015
dc.rights.driver.fl_str_mv Springer Nature Switzerland AG.
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dc.publisher.none.fl_str_mv Annals of Microbiology
publisher.none.fl_str_mv Annals of Microbiology
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