Métodos físicos y químicos para la eliminación de propágulos de hongos formadores de micorrizas nativos de muestras de suelo. / [Physical and chemical methods for eliminating propagules of indigenous mycorrhizal fungi from soil samples].
Rev. Argent. Microbiol.
; 46(3): 231-6, 2014 Jul-Sep.
Article
en Es
| BINACIS
| ID: bin-133297
ABSTRACT
The objective of this work was to evaluate methods to eliminate or reduce the number of indigenous arbuscular mycorrhizal fungi (AMF) from soil samples without affecting their edaphic or microbiological properties. At an early trial we evaluated moist heat (autoclaving), dry heat (oven), sodium hypochlorite (NaClO) and formaldehyde at a range of 100.0-3.3Al/g and 16.7-3.3Al/g respectively. There was no germination in plants of ryegrass (Lolium multiflorum Lam.) sown on substrates receiving NaClO (100.0-33.3Al/g), whereas autoclaving significantly increased the available soil phosphorous content. Both treatments failed to eradicate AMF colonization at 9 weeks; therefore, they were discarded. In a second trial, oven and formaldehyde (10.0Al/g) treatments were analyzed to assess the effects of seed decontamination and AMF reinoculation. Both procedures were effective in reducing or eliminating indigenous AMF at a range of soil P availability of 12-29mg/kg. However, the time between soil treatment and AMF multiplication and safety requirements were greater in the case of formaldehyde application.
Buscar en Google
Colección:
06-national
/
AR
Base de datos:
BINACIS
Asunto principal:
Hipoclorito de Sodio
/
Microbiología del Suelo
/
Micorrizas
/
Agricultura
/
Formaldehído
/
Fungicidas Industriales
/
Calor
Tipo de estudio:
Evaluation_studies
Idioma:
Es
Revista:
Rev. Argent. Microbiol.
Año:
2014
Tipo del documento:
Article
Pais de publicación:
Argentina