Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens
Bacteria promote growth by different mechanisms like phosphate (Pi) solubilization, Indol Acetic Acid (IAA) synthesis and siderophores production. The purpose of this study was to isolate bacteria that promote the growth of plants and may also act as antagonistic organisms of plant pathogens. Pi so...
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| Format: | Article |
| Language: | Spanish |
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Universidad Nacional de La Plata, Facultad de Ciencias Agrarias y Forestales
2019-12-01
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| Series: | Revista de la Facultad de Agronomía |
| Subjects: | |
| Online Access: | https://revistas.unlp.edu.ar/revagro/article/view/9516 |
| _version_ | 1827785963378573312 |
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| author | Silvina López Graciela Pastorino Ismael Malbran Pedro Balatti |
| author_facet | Silvina López Graciela Pastorino Ismael Malbran Pedro Balatti |
| author_sort | Silvina López |
| collection | DOAJ |
| description |
Bacteria promote growth by different mechanisms like phosphate (Pi) solubilization, Indol Acetic Acid (IAA) synthesis and siderophores production. The purpose of this study was to isolate bacteria that promote the growth of plants and may also act as antagonistic organisms of plant pathogens. Pi solubilizing microorganisms that were isolated from the soils of Tres Arroyos, Buenos Aires; were also able to synthesize IAA and produce siderophores. The ability of these bacteria to solubilize Pi was directly related with the synthesis of organic acids that lowered the pH and was not related with phosphatase activity. The ability of the organisms to solubilize Pi was indirectly related with the amount of soluble Pi present in the media. Though Pi solubilizing microorganisms are mainly associated with the rhizoplane exudates, in this case did not induce Pi solubilization. In addition to promote plant growth, these bacteria proved to be antagonistic of plant pathogens such as Fusarium graminearum and F. solani.
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| first_indexed | 2024-03-11T16:27:13Z |
| format | Article |
| id | doaj.art-782aa7dfc0c04076ad6bd3488680439c |
| institution | Directory Open Access Journal |
| issn | 0041-8676 1669-9513 |
| language | Spanish |
| last_indexed | 2024-03-11T16:27:13Z |
| publishDate | 2019-12-01 |
| publisher | Universidad Nacional de La Plata, Facultad de Ciencias Agrarias y Forestales |
| record_format | Article |
| series | Revista de la Facultad de Agronomía |
| spelling | doaj.art-782aa7dfc0c04076ad6bd3488680439c2023-10-24T09:47:45ZspaUniversidad Nacional de La Plata, Facultad de Ciencias Agrarias y ForestalesRevista de la Facultad de Agronomía0041-86761669-95132019-12-01118210.24215/16699513e0227649Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogensSilvina López0Graciela Pastorino1Ismael Malbran2Pedro Balatti3Comisión de Investigaciones Científicas de la provincia de Buenos Aires (CICBA), Argentina; Centro de Investigaciones de Fitopatología (CIDEFI), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Comisión de Investigaciones Científicas de la provincia de Buenos Aires, Argentina; Cátedra de Microbiología Agrícola, Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, ArgentinaConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Centro de Investigaciones de Fitopatología (CIDEFI), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Comisión de Investigaciones Científicas de la provincia de Buenos Aires, ArgentinaComisión de Investigaciones Científicas de la provincia de Buenos Aires (CICBA), Argentina; Cátedra de Microbiología Agrícola, Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Argentina; Centro de Investigaciones de Fitopatología (CIDEFI), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Comisión de Investigaciones Científicas de la provincia de Buenos Aires, Argentina Bacteria promote growth by different mechanisms like phosphate (Pi) solubilization, Indol Acetic Acid (IAA) synthesis and siderophores production. The purpose of this study was to isolate bacteria that promote the growth of plants and may also act as antagonistic organisms of plant pathogens. Pi solubilizing microorganisms that were isolated from the soils of Tres Arroyos, Buenos Aires; were also able to synthesize IAA and produce siderophores. The ability of these bacteria to solubilize Pi was directly related with the synthesis of organic acids that lowered the pH and was not related with phosphatase activity. The ability of the organisms to solubilize Pi was indirectly related with the amount of soluble Pi present in the media. Though Pi solubilizing microorganisms are mainly associated with the rhizoplane exudates, in this case did not induce Pi solubilization. In addition to promote plant growth, these bacteria proved to be antagonistic of plant pathogens such as Fusarium graminearum and F. solani. https://revistas.unlp.edu.ar/revagro/article/view/9516PGPB (Plant Growth Promoting Bacteria)solubilization of PisiderophoresAIAantagonistic |
| spellingShingle | Silvina López Graciela Pastorino Ismael Malbran Pedro Balatti Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens Revista de la Facultad de Agronomía PGPB (Plant Growth Promoting Bacteria) solubilization of Pi siderophores AIA antagonistic |
| title | Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens |
| title_full | Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens |
| title_fullStr | Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens |
| title_full_unstemmed | Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens |
| title_short | Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens |
| title_sort | enterobacteria isolated from an agricultural soil of argentina promote plant growth and biocontrol activity of plant pathogens |
| topic | PGPB (Plant Growth Promoting Bacteria) solubilization of Pi siderophores AIA antagonistic |
| url | https://revistas.unlp.edu.ar/revagro/article/view/9516 |
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