Localization and survival of Azospirillum brasilense Az39 in soybean leaves
- Autores
- Puente, Mariana Laura; Maroniche, Guillermo Andrés; Panepucci, Marina Gabriela; Sabio Y Garcia, Julia Veronica; García, Julia Elena; Criado, María Victoria; Molina, Romina Micaela; Cassán, Fabricio Dario
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In recent years, foliar inoculation has gained acceptance among the available methods to deliver plant beneficial micro-organisms to crops under field conditions. Colonization efficiency by such micro-organisms largely depends on their ability to survive when applied on the leaves. In this work, we evaluated the survival and localization of Azospirillum brasilense Az39 (Az39) in excised soybean leaves. Scanning electron microscopy and confocal laser scanning microscopy of a red fluorescent-transformed variant of Az39 were used to determine bacterial localization, while the most probable number and plate count methods were applied for bacterial quantification. Microscopic observations indicated a decrease in the number of Az39 cells on the leaf surface at 24 h after treatment, whereas midribs and cell–cell junctions of the inner leaf epidermis became highly populated zones. The presence of Az39 inside xylem vessels was corroborated at 6 h after bacterization. Az39 population did not significantly decrease throughout 24 h. We could visualize Az39 cells on the surface and in internal tissues of soybean leaves and recover them through culture methodologies. These results evidence the survival capacity of Az39 on and inside leaves and suggest a previously unnoticed endophytic potential for this well-known plant growth-promoting rhizobacteria strain.
Instituto de Microbiología y Zoología Agrícola (IMYZA)
Fil: Puente, Mariana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Laboratorio de Bacterias Promotoras del Crecimiento Vegetal; Argentina
Fil: Maroniche, Guillermo Andrés. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Panepucci, Marina Gabriela. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
Fil: Sabio Y Garcia, Julia Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Veterinarias y Agronómicas. Laboratorio Integral de Microscopía; Argentina
Fil: Garcia, Julia Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina
Fil: Criado, Maria Victoria. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA)-CONICET; Argentina
Fil: Molina, Romina Micaela. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones Agrobiotecnológicas. Laboratorio de Fisiología Vegetal e Interacción Planta-Microorganismo. INIAB-CONICET; Argentina
Fil: Cassán, Fabricio Darío. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones Agrobiotecnológicas. Laboratorio de Fisiología Vegetal e Interacción Planta-Microorganismo. INIAB-CONICET; Argentina - Fuente
- Letters in Applied Microbiology 72 (5) : 626-633 (May 2021)
- Materia
-
Azospirillum brasilense
Inoculation
Soybeans
Soja
Inoculación
PGPR - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/10996
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Localization and survival of Azospirillum brasilense Az39 in soybean leavesPuente, Mariana LauraMaroniche, Guillermo AndrésPanepucci, Marina GabrielaSabio Y Garcia, Julia VeronicaGarcía, Julia ElenaCriado, María VictoriaMolina, Romina MicaelaCassán, Fabricio DarioAzospirillum brasilenseInoculationSoybeansSojaInoculaciónPGPRIn recent years, foliar inoculation has gained acceptance among the available methods to deliver plant beneficial micro-organisms to crops under field conditions. Colonization efficiency by such micro-organisms largely depends on their ability to survive when applied on the leaves. In this work, we evaluated the survival and localization of Azospirillum brasilense Az39 (Az39) in excised soybean leaves. Scanning electron microscopy and confocal laser scanning microscopy of a red fluorescent-transformed variant of Az39 were used to determine bacterial localization, while the most probable number and plate count methods were applied for bacterial quantification. Microscopic observations indicated a decrease in the number of Az39 cells on the leaf surface at 24 h after treatment, whereas midribs and cell–cell junctions of the inner leaf epidermis became highly populated zones. The presence of Az39 inside xylem vessels was corroborated at 6 h after bacterization. Az39 population did not significantly decrease throughout 24 h. We could visualize Az39 cells on the surface and in internal tissues of soybean leaves and recover them through culture methodologies. These results evidence the survival capacity of Az39 on and inside leaves and suggest a previously unnoticed endophytic potential for this well-known plant growth-promoting rhizobacteria strain.Instituto de Microbiología y Zoología Agrícola (IMYZA)Fil: Puente, Mariana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Laboratorio de Bacterias Promotoras del Crecimiento Vegetal; ArgentinaFil: Maroniche, Guillermo Andrés. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Panepucci, Marina Gabriela. Universidad de Buenos Aires. Facultad de Agronomía; ArgentinaFil: Sabio Y Garcia, Julia Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Veterinarias y Agronómicas. Laboratorio Integral de Microscopía; ArgentinaFil: Garcia, Julia Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; ArgentinaFil: Criado, Maria Victoria. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA)-CONICET; ArgentinaFil: Molina, Romina Micaela. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones Agrobiotecnológicas. Laboratorio de Fisiología Vegetal e Interacción Planta-Microorganismo. INIAB-CONICET; ArgentinaFil: Cassán, Fabricio Darío. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones Agrobiotecnológicas. Laboratorio de Fisiología Vegetal e Interacción Planta-Microorganismo. INIAB-CONICET; ArgentinaWiley2021-12-27T16:49:22Z2021-12-27T16:49:22Z2021-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/10996https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/lam.134440266-8254https://doi.org/10.1111/lam.13444Letters in Applied Microbiology 72 (5) : 626-633 (May 2021)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:49:14Zoai:localhost:20.500.12123/10996instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:49:14.349INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves |
title |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves |
spellingShingle |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves Puente, Mariana Laura Azospirillum brasilense Inoculation Soybeans Soja Inoculación PGPR |
title_short |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves |
title_full |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves |
title_fullStr |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves |
title_full_unstemmed |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves |
title_sort |
Localization and survival of Azospirillum brasilense Az39 in soybean leaves |
dc.creator.none.fl_str_mv |
Puente, Mariana Laura Maroniche, Guillermo Andrés Panepucci, Marina Gabriela Sabio Y Garcia, Julia Veronica García, Julia Elena Criado, María Victoria Molina, Romina Micaela Cassán, Fabricio Dario |
author |
Puente, Mariana Laura |
author_facet |
Puente, Mariana Laura Maroniche, Guillermo Andrés Panepucci, Marina Gabriela Sabio Y Garcia, Julia Veronica García, Julia Elena Criado, María Victoria Molina, Romina Micaela Cassán, Fabricio Dario |
author_role |
author |
author2 |
Maroniche, Guillermo Andrés Panepucci, Marina Gabriela Sabio Y Garcia, Julia Veronica García, Julia Elena Criado, María Victoria Molina, Romina Micaela Cassán, Fabricio Dario |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Azospirillum brasilense Inoculation Soybeans Soja Inoculación PGPR |
topic |
Azospirillum brasilense Inoculation Soybeans Soja Inoculación PGPR |
dc.description.none.fl_txt_mv |
In recent years, foliar inoculation has gained acceptance among the available methods to deliver plant beneficial micro-organisms to crops under field conditions. Colonization efficiency by such micro-organisms largely depends on their ability to survive when applied on the leaves. In this work, we evaluated the survival and localization of Azospirillum brasilense Az39 (Az39) in excised soybean leaves. Scanning electron microscopy and confocal laser scanning microscopy of a red fluorescent-transformed variant of Az39 were used to determine bacterial localization, while the most probable number and plate count methods were applied for bacterial quantification. Microscopic observations indicated a decrease in the number of Az39 cells on the leaf surface at 24 h after treatment, whereas midribs and cell–cell junctions of the inner leaf epidermis became highly populated zones. The presence of Az39 inside xylem vessels was corroborated at 6 h after bacterization. Az39 population did not significantly decrease throughout 24 h. We could visualize Az39 cells on the surface and in internal tissues of soybean leaves and recover them through culture methodologies. These results evidence the survival capacity of Az39 on and inside leaves and suggest a previously unnoticed endophytic potential for this well-known plant growth-promoting rhizobacteria strain. Instituto de Microbiología y Zoología Agrícola (IMYZA) Fil: Puente, Mariana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola. Laboratorio de Bacterias Promotoras del Crecimiento Vegetal; Argentina Fil: Maroniche, Guillermo Andrés. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Panepucci, Marina Gabriela. Universidad de Buenos Aires. Facultad de Agronomía; Argentina Fil: Sabio Y Garcia, Julia Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Veterinarias y Agronómicas. Laboratorio Integral de Microscopía; Argentina Fil: Garcia, Julia Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Criado, Maria Victoria. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA)-CONICET; Argentina Fil: Molina, Romina Micaela. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones Agrobiotecnológicas. Laboratorio de Fisiología Vegetal e Interacción Planta-Microorganismo. INIAB-CONICET; Argentina Fil: Cassán, Fabricio Darío. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones Agrobiotecnológicas. Laboratorio de Fisiología Vegetal e Interacción Planta-Microorganismo. INIAB-CONICET; Argentina |
description |
In recent years, foliar inoculation has gained acceptance among the available methods to deliver plant beneficial micro-organisms to crops under field conditions. Colonization efficiency by such micro-organisms largely depends on their ability to survive when applied on the leaves. In this work, we evaluated the survival and localization of Azospirillum brasilense Az39 (Az39) in excised soybean leaves. Scanning electron microscopy and confocal laser scanning microscopy of a red fluorescent-transformed variant of Az39 were used to determine bacterial localization, while the most probable number and plate count methods were applied for bacterial quantification. Microscopic observations indicated a decrease in the number of Az39 cells on the leaf surface at 24 h after treatment, whereas midribs and cell–cell junctions of the inner leaf epidermis became highly populated zones. The presence of Az39 inside xylem vessels was corroborated at 6 h after bacterization. Az39 population did not significantly decrease throughout 24 h. We could visualize Az39 cells on the surface and in internal tissues of soybean leaves and recover them through culture methodologies. These results evidence the survival capacity of Az39 on and inside leaves and suggest a previously unnoticed endophytic potential for this well-known plant growth-promoting rhizobacteria strain. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-27T16:49:22Z 2021-12-27T16:49:22Z 2021-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12123/10996 https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/lam.13444 0266-8254 https://doi.org/10.1111/lam.13444 |
url |
http://hdl.handle.net/20.500.12123/10996 https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/lam.13444 https://doi.org/10.1111/lam.13444 |
identifier_str_mv |
0266-8254 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess |
eu_rights_str_mv |
restrictedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
Letters in Applied Microbiology 72 (5) : 626-633 (May 2021) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
reponame_str |
INTA Digital (INTA) |
collection |
INTA Digital (INTA) |
instname_str |
Instituto Nacional de Tecnología Agropecuaria |
repository.name.fl_str_mv |
INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria |
repository.mail.fl_str_mv |
tripaldi.nicolas@inta.gob.ar |
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12.623145 |