Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

Dark septate endophytes present different potential to solubilize calcium, iron and aluminum phosphates

Spagnoletti, Federico NicolásIcon ; Tobar Gomez, Natalia Elizabeth; Fernández Di Pardo, AgustinaIcon ; Chiocchio, Viviana MonicaIcon ; Lavado, Raul SilvioIcon
Fecha de publicación: 03/2017
Editorial: Elsevier Science
Revista: Applied Soil Ecology
ISSN: 0929-1393
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioremediación, Diagnóstico Biotecnológico en Gestión Medioambiental

Resumen

Many microorganisms play a significant role in releasing phosphorus (P) from soil insoluble phosphates to crops. Here, we evaluated the ability of dark septate endophytes (DSE) to solubilize calcium, aluminum and iron phosphates. DSE were isolated from the roots of wheat (Triticum aestivum) and the forages Panicum coloratum and Chloris gayana, which are grown in slightly acidic and alkaline soils of the Argentine Pampas, respectively. Protocols to corroborate their endophytic nature were followed. Nine fungi were identified by morphological and molecular characteristics, and their sequences were deposited in GenBank. The isolates belonged to the same order and genera as DSE fungi recorded in other parts of the world. The temperature and pH requirements of the DSE strains were verified. To determine their ability to solubilize phosphate, we followed two in vitro methodologies: solid and liquid media. On solid medium, all isolates showed ability to solubilize calcium phosphate, three strains solubilized aluminum phosphate, and none of them solubilized iron phosphate. The DSE most efficient in solubilizing calcium phosphate were Ophiosphaerella sp. and Cochliobolus sp., followed by Setosphaeria rostrata. The strains Drechslera sp. (P6), Ophiosphaerella herpotricha and Drechslera sp. (12–15) were able to solubilize aluminum phosphate. In liquid medium, the isolates showed different ability to generate acidity and to solubilize phosphates. Drechslera sp. (12–15) was among the most efficient in solubilizing calcium phosphate, Curvularia sp. in solubilizing aluminum phosphate and Ophiosphaerella sp. in solubilizing iron phosphate. The results obtained combining both methodologies indicate that S. rostrata was not the best with each phosphate individually but showed the best global performance. DSE fungi are far less identified than other groups of fungi and bacteria as soil insoluble phosphate-solubilizing agents. However, they showed potential for application as biofertilizers in different soils to manage sustainable agroecosystems.
Palabras clave: Biofertilizers , Endophyte Fungi , Soil Fungi , Soil Phosphates
Ver el registro completo
 
Archivos asociados
Tamaño: 826.9Kb
Formato: PDF
.
Solicitar
Licencia
info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/65605
URL: http://www.sciencedirect.com/science/article/pii/S092913931630261X
DOI: https://dx.doi.org/10.1016/j.apsoil.2016.11.010
Colecciones
Articulos(INBA)
Articulos de INST.DE INVEST. EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Citación
Spagnoletti, Federico Nicolás; Tobar Gomez, Natalia Elizabeth; Fernández Di Pardo, Agustina; Chiocchio, Viviana Monica; Lavado, Raul Silvio; Dark septate endophytes present different potential to solubilize calcium, iron and aluminum phosphates; Elsevier Science; Applied Soil Ecology; 111; 3-2017; 25-32
Compartir
Altmétricas
 
Estadísticas
Visualizaciones: 131
Descargas: 0

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • Twitter
  • Instagram
  • YouTube
  • Sound Cloud

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

Ministerio
https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES