Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity
Available phosphate (P) deficiency in tropical soils has been recognized as a major factor that limits soil quality and plant performance. To overcome this, it is necessary to add high amounts of soluble P-fertilizers; however, this is inefficient and costly. Alternatively, rock phosphates (RP) can...
- Autores:
-
Osorio Vega, Nelson Walter
Habte, Mitiku
León Peláez, Juan Diego
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2015
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/58592
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/58592
http://bdigital.unal.edu.co/55376/
- Palabra clave:
- 57 Ciencias de la vida; Biología / Life sciences; biology
58 Plantas / Plants
Mortierella
apatite
phosphorus
Mollisol
Oxisol
Ultisol
Andisol
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Osorio Vega, Nelson Walterc0033a1d-c7c7-4c66-bbdf-e21e4091521e300Habte, Mitiku13e6269f-05f6-4c72-af12-3af9ff7e819c300León Peláez, Juan Diego6a1b7054-6f01-4803-95d4-b51d102684003002019-07-02T14:25:19Z2019-07-02T14:25:19Z2015-07-01ISSN: 2248-7026https://repositorio.unal.edu.co/handle/unal/58592http://bdigital.unal.edu.co/55376/Available phosphate (P) deficiency in tropical soils has been recognized as a major factor that limits soil quality and plant performance. To overcome this, it is necessary to add high amounts of soluble P-fertilizers; however, this is inefficient and costly. Alternatively, rock phosphates (RP) can be used, but their low reactivity limits their use. Phosphate solubilizing microorganisms (PSM) can enhance RP dissolution and, thus, improve the RP agronomic effectiveness as fertilizer. Nonetheless, their effectiveness may be impaired by the soil P fixation capacity. An experiment was carried out to assess the in vitro effectiveness of the fungus Mortierella sp. to dissolve RP in an axenic culture medium and, thus, enhance the solution P concentration in the presence of aliquots of soils with contrasting P fixation capacity. The results showed that the fungus was capable of lowering the medium pH from 7.7 to 3.0 and, thus, dissolving the RP. The presence of soil aliquots in the medium controlled the effectiveness of the fungus to increase the concentration of the soluble P. In the presence of soils with a low or medium P sorption capacity, the concentration of the soluble P was high (63.8-146.6 mg L-1) in comparison with the inoculated (soilless) treatment (50.0 mg L-1) and the uninoculated control (0.7 mg L-1). By contrast, with very-high P fixing soil aliquots, the concentration of the soluble P was very low (3.6-33.1 mg L-1); in addition, in these soils, the fungus immobilized more P into its mycelia than in soils with a low or medium P fixation capacity. The capacity of a soil to fix P seems to be a good predictor for the effectiveness of this fungus to increase the soluble P concentration via RP dissolution.application/pdfspaUniversidad Nacional de Colombiahttp://www.revistas.unal.edu.co/index.php/refame/article/view/50950Universidad Nacional de Colombia Revistas electrónicas UN Revista Facultad Nacional de Agronomía MedellínRevista Facultad Nacional de Agronomía MedellínOsorio Vega, Nelson Walter and Habte, Mitiku and León Peláez, Juan Diego (2015) Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity. Revista Facultad Nacional de Agronomía, 68 (2). pp. 7627-7636. ISSN 2248-702657 Ciencias de la vida; Biología / Life sciences; biology58 Plantas / PlantsMortierellaapatitephosphorusMollisolOxisolUltisolAndisolEffectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacityArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINALrfnam.v68n2.50950.pdfapplication/pdf293866https://repositorio.unal.edu.co/bitstream/unal/58592/1/rfnam.v68n2.50950.pdf0f01b989fa35befdc8ffa57d6f9fc512MD51THUMBNAILrfnam.v68n2.50950.pdf.jpgrfnam.v68n2.50950.pdf.jpgGenerated Thumbnailimage/jpeg8941https://repositorio.unal.edu.co/bitstream/unal/58592/2/rfnam.v68n2.50950.pdf.jpg7c32a968d2bef1f0a0194d115c84a11fMD52unal/58592oai:repositorio.unal.edu.co:unal/585922024-04-02 23:11:32.58Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity |
title |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity |
spellingShingle |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity 57 Ciencias de la vida; Biología / Life sciences; biology 58 Plantas / Plants Mortierella apatite phosphorus Mollisol Oxisol Ultisol Andisol |
title_short |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity |
title_full |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity |
title_fullStr |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity |
title_full_unstemmed |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity |
title_sort |
Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity |
dc.creator.fl_str_mv |
Osorio Vega, Nelson Walter Habte, Mitiku León Peláez, Juan Diego |
dc.contributor.author.spa.fl_str_mv |
Osorio Vega, Nelson Walter Habte, Mitiku León Peláez, Juan Diego |
dc.subject.ddc.spa.fl_str_mv |
57 Ciencias de la vida; Biología / Life sciences; biology 58 Plantas / Plants |
topic |
57 Ciencias de la vida; Biología / Life sciences; biology 58 Plantas / Plants Mortierella apatite phosphorus Mollisol Oxisol Ultisol Andisol |
dc.subject.proposal.spa.fl_str_mv |
Mortierella apatite phosphorus Mollisol Oxisol Ultisol Andisol |
description |
Available phosphate (P) deficiency in tropical soils has been recognized as a major factor that limits soil quality and plant performance. To overcome this, it is necessary to add high amounts of soluble P-fertilizers; however, this is inefficient and costly. Alternatively, rock phosphates (RP) can be used, but their low reactivity limits their use. Phosphate solubilizing microorganisms (PSM) can enhance RP dissolution and, thus, improve the RP agronomic effectiveness as fertilizer. Nonetheless, their effectiveness may be impaired by the soil P fixation capacity. An experiment was carried out to assess the in vitro effectiveness of the fungus Mortierella sp. to dissolve RP in an axenic culture medium and, thus, enhance the solution P concentration in the presence of aliquots of soils with contrasting P fixation capacity. The results showed that the fungus was capable of lowering the medium pH from 7.7 to 3.0 and, thus, dissolving the RP. The presence of soil aliquots in the medium controlled the effectiveness of the fungus to increase the concentration of the soluble P. In the presence of soils with a low or medium P sorption capacity, the concentration of the soluble P was high (63.8-146.6 mg L-1) in comparison with the inoculated (soilless) treatment (50.0 mg L-1) and the uninoculated control (0.7 mg L-1). By contrast, with very-high P fixing soil aliquots, the concentration of the soluble P was very low (3.6-33.1 mg L-1); in addition, in these soils, the fungus immobilized more P into its mycelia than in soils with a low or medium P fixation capacity. The capacity of a soil to fix P seems to be a good predictor for the effectiveness of this fungus to increase the soluble P concentration via RP dissolution. |
publishDate |
2015 |
dc.date.issued.spa.fl_str_mv |
2015-07-01 |
dc.date.accessioned.spa.fl_str_mv |
2019-07-02T14:25:19Z |
dc.date.available.spa.fl_str_mv |
2019-07-02T14:25:19Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.issn.spa.fl_str_mv |
ISSN: 2248-7026 |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/58592 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/55376/ |
identifier_str_mv |
ISSN: 2248-7026 |
url |
https://repositorio.unal.edu.co/handle/unal/58592 http://bdigital.unal.edu.co/55376/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
http://www.revistas.unal.edu.co/index.php/refame/article/view/50950 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Revista Facultad Nacional de Agronomía Medellín Revista Facultad Nacional de Agronomía Medellín |
dc.relation.references.spa.fl_str_mv |
Osorio Vega, Nelson Walter and Habte, Mitiku and León Peláez, Juan Diego (2015) Effectiveness of a rock phosphate solubilizing fungus to increase soil solution phosphate impaired by the soil phosphate sorption capacity. Revista Facultad Nacional de Agronomía, 68 (2). pp. 7627-7636. ISSN 2248-7026 |
dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
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Universidad Nacional de Colombia |
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Universidad Nacional de Colombia |
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