Fecha/hora: 03/06/2024 16:42:08

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 23/05/2019
Fecha de la última actualización: | 06/06/2019
Autoria: | RIVAS, F.; HAMPTON, J. G.; MORÁN-DÍEZ, M.E.; NARCISO, J.; ROSTÁS, M.; WESSMAN, P.; JACKSON, T. A.; GLARE, T. R.
Afiliación: | FEDERICO RIVAS FRANCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Bio-Protection Research Centre, Lincoln, New Zealand.; JOHN G. HAMPTON, Bio-Protection Research Centre, Lincoln, New Zealand.; MARIA E. MORÁN-DIEZ, Department of Microbiology and Genetics, University of Salamanca, Salamanca, Spain.; JOSEFINA NARCISO, Bio-Protection Research Centre, Lincoln, New Zealand.; MICHAEL ROSTÁS, Bio-Protection Research Centre, Lincoln, New Zealand.; PER WESSMAN, Research Institute of Sweden (RISE), Göteborg, Sweden.; TREVOR A. JACKSON, AgResearch, Lincoln, New Zealand.; TRAVIS R. GLARE, Bio-Protection Research Centre, Lincoln, New Zealand.
Título: | Effect of coating maize seed with entomopathogenic fungi on plant growth and resistance against Fusarium graminearum and Costelytra giveni.
Año de publicación: | 2019
Fuente/Imprenta: | Biocontrol Science and Technology, 2019.
ISSN: | 0958-3157
DOI: | 10.1080/09583157.2019.1611736
Idioma: | Inglés
Notas: | Article history: Received 30 October 2018 /Accepted 21 April 2019.

Contenido:

ABSTRACT.
Some entomopathogenic fungi such as Metarhizium and Beauveria not only have the ability to infect and kill insects but also the capability to associate with plant roots. The potential benefits from this plant-fungus association include nutrient acquisition, plant growth promotion and protection against stressors. The objective of this study was to evaluate the delivery of entomopathogenic fungi in seed coating to determine whether the fungal presence affected maize performance. Additionally, fungal biocontrol ability was assessed in terms of plant resistance to the larvae of Costelytra giveni (Coleoptera: Scarabaeidae) and to the fungus Fusarium graminearum (Nectriaceae). Maize seeds were coated with conidia from Metarhizium spp. or Beauveria bassiana and plant performance was evaluated as seed germination and plant dry weight. Larval mortality and the presence of Fusarium root rot symptoms were also determined. The entomopathogenic fungal persistence on the maize rhizosphere was demonstrated with a M. anisopliae isolate expressing the green fluorescent protein. Presence of both challengers was detrimental to maize performance with 33% reduction in root dry weight in control plants while no variation was observed when the entomopathogenic fungi were used to coat seeds. Some seed coatings resulted in up to 67% mycosis of C. giveni larvae and a reduction in Fusarium rot root symptoms between 24?44%. This study showed that seed coating with conidia of Metarhizium or Beauveria can be used as a delivery system for pests and plant pathogen control, while at the same time hyphae formed a close association with plant roots after conidial germination. 
© 2019 Informa UK Limited, trading as Taylor & Francis Group.

Palabras-Clave: | BIOFUNGICIDAS; BIOFUNGICIDE; BIOINSECTICIDAS; BIOINSECTICIDE; Endophytic entomopathogenic fungi; Metarhizium spp; PLANT GROWTH PROMOTION; SEED COATING.
Categoría del tema: | F01 Cultivo
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (101829-1) - PXI - AP - DD - PP/BIOCONTROL SC.&TECH./2019 -  -  - DIS