Verifying the biocontrol activity of novel film‐forming formulations of Candida sake CPA‐1: resilience in relation to environmental factors, rainfall episodes, and control of Botrytis cinerea on different hosts
Ver/Abrir
Fecha de publicación
2019-04-13ISSN
0022-5142
Resumen
BACKGROUND
The efficacy of Candida sake CPA‐1 as a biocontrol agent against several diseases has been studied since it was isolated 20 years ago. However, it was only recently that two suitable and effective film‐forming formulations based on potato starch and maltodextrins were developed using the fluidized‐bed spray‐drying system. The present work aimed to confirm the capability of both novel formulations by testing their resilience on grapes at different temperatures (0, 22, and 30 °C), relative humidities (40% and 85%), and simulated rainfall levels. Another objective was to examine the control of Botrytis cinerea in different hosts.
RESULTS
The CPA‐1 cells from both dried formulations survived better than the liquid formulation on grapes stored at 0 and 22 °C regardless of the relative humidity. After simulated rainfall, potato starch formulation achieved significantly higher populations than maltodextrin formulation, although the highest reduction was −1.6 log N N0−1. A positive effect of cell establishment prior to the simulated rainfall was shown, and recovered cells from the potato starch formulation were significantly higher after 72 h of cell establishment. Finally, both formulations reduced the incidence and severity of B. cinerea on pears, apples, and tomatoes.
CONCLUSION
The potential of these novel film‐forming formulations of C. sake CPA‐1 was verified. The resilience of formulated C. sake was better than the commercialized liquid formulation, the adherence of the formulations to the grapes improved after an establishment period prior to rain exposure, and the control of B. cinerea was verified in a wider range of hosts. © 2019 Society of Chemical Industry
Tipo de documento
Artículo
Versión del documento
Versión aceptada
Lengua
English
Páginas
25
Publicado por
Wiley
Publicado en
Journal of the Science of Food and Agriculture
Citación
Carbó, Anna, Neus Teixidó, Josep Usall, and Rosario Torres. 2019. "Verifying The Biocontrol Activity Of Novel Film‐Forming Formulations Of Candida Sake CPA‐1: Resilience In Relation To Environmental Factors, Rainfall Episodes, And Control Of Botrytis Cinerea On Different Hosts". Journal Of The Science Of Food And Agriculture 99 (11): 4969-4976. Wiley. doi:10.1002/jsfa.9731.
Número del acuerdo de la subvención
INIA-FEDER/Programa Nacional de Proyectos de Investigación Fundamental/RTA2012-00067-C02-01/ES/Desarrollo de formulaciones de agentes de biocontrol con recubrimientos biodegradables para el control de enfermedades en productos vegetales/
INIA-FEDER/Programa Estatal de I+R+D orientada a los retos de la sociedad/RTA2015-00037-C02-01/ES/Nuevas estrategias integradas para la mejora de la calidad postcosecha de manzana y caqui, basadas en la aplicación de recubrimientos comestibles formulados con ingredientes bioactivos/BIOREC
Program
Postcollita
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