Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors
Aims: As reliability of preharvest applications of biological control agents (BCAs) to control fruit pathogens is highly dependent on the survival of the selected organism, this study aimed to describe the population dynamics of the yeast‐BCA Candida sake (Saito & Ota) CPA‐1 on grape berries under the effect of abiotic factors such as temperature, relative humidity, sunlight and rainfall. Methods and Results: Candida sake (5 × 107 CFU ml−1), combined with different concentrations of the food additive Fungicover®, was applied on grape berry clusters. Treated clusters were then exposed to abiotic factors in field or laboratory conditions, recovering populations to describe C. sake population dynamics. The addition of Fungicover significantly increased C. sake multiplication under optimal growth conditions and improved survival under fluctuating abiotic factors. After field applications, significant differences in populations on grape bunches exposed or covered by fine foliage were detected. Simulated rainfall washed off C. sake populations by 0·6–0·9 log units after 20 mm of rain volume. Allowing populations to establish for 24 h or more, prior to a rain event, persistence on grape berries significantly increased and the effect of rain intensity was not observable. Conclusions: Candida sake demonstrated high survival ability under unfavourable environmental conditions and persistence under intense rain. The study evidenced the importance of the first period just after application for C. sake survival on grape tissues and also the protective effect of the additive Fungicover.
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Format: | info:ar-repo/semantics/artículo biblioteca |
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Wiley
2014-09
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Subjects: | Agentes de Control Biológico, Hongos, Candida, Vid, Ácidos Grasos, Luz del Día, Lluvia, Biological Control Agents, Fungi, Grapevines, Fatty Acids, Daylight, Rain, Candida sake, |
Online Access: | https://onlinelibrary.wiley.com/doi/abs/10.1111/jam.12570 http://hdl.handle.net/20.500.12123/4681 https://doi.org/10.1111/jam.12570 |
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oai:localhost:20.500.12123-46812019-03-20T13:42:47Z Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors Calvo Garrido, Carlos Viñas, Inmaculada Usall, Josep Rodriguez Romera, Mariela Carmen Ramos, María Concepción Teixidó, Neus Agentes de Control Biológico Hongos Candida Vid Ácidos Grasos Luz del Día Lluvia Biological Control Agents Fungi Grapevines Fatty Acids Daylight Rain Candida sake Aims: As reliability of preharvest applications of biological control agents (BCAs) to control fruit pathogens is highly dependent on the survival of the selected organism, this study aimed to describe the population dynamics of the yeast‐BCA Candida sake (Saito & Ota) CPA‐1 on grape berries under the effect of abiotic factors such as temperature, relative humidity, sunlight and rainfall. Methods and Results: Candida sake (5 × 107 CFU ml−1), combined with different concentrations of the food additive Fungicover®, was applied on grape berry clusters. Treated clusters were then exposed to abiotic factors in field or laboratory conditions, recovering populations to describe C. sake population dynamics. The addition of Fungicover significantly increased C. sake multiplication under optimal growth conditions and improved survival under fluctuating abiotic factors. After field applications, significant differences in populations on grape bunches exposed or covered by fine foliage were detected. Simulated rainfall washed off C. sake populations by 0·6–0·9 log units after 20 mm of rain volume. Allowing populations to establish for 24 h or more, prior to a rain event, persistence on grape berries significantly increased and the effect of rain intensity was not observable. Conclusions: Candida sake demonstrated high survival ability under unfavourable environmental conditions and persistence under intense rain. The study evidenced the importance of the first period just after application for C. sake survival on grape tissues and also the protective effect of the additive Fungicover. EEA Mendoza Fil: Calvo Garrido, Carlos. University of Lleida. Agrotecnio Center. Food Technology Department; España Fil: Viñas, Inmaculada. University of Lleida. Agrotecnio Center. Food Technology Department; España Fil: Usall, Josep. University of Lleida. Agrotecnio Center. Food Technology Department; España Fil: Rodriguez Romera, Mariela Carmen. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Ramos, María Concepción. University of Lleida. Agrotecnio Center. Environment & Soil Science Department; España Fil: Teixidó, Neus. Institute of Agrifood Research and Technology (IRTA) .Postharvest Programme; España 2019-03-20T13:40:32Z 2019-03-20T13:40:32Z 2014-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://onlinelibrary.wiley.com/doi/abs/10.1111/jam.12570 http://hdl.handle.net/20.500.12123/4681 1364-5072 1365-2672 https://doi.org/10.1111/jam.12570 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Journal of Applied Microbiology 117 (3) : 800-811 (September 2014) |
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Agentes de Control Biológico Hongos Candida Vid Ácidos Grasos Luz del Día Lluvia Biological Control Agents Fungi Grapevines Fatty Acids Daylight Rain Candida sake Agentes de Control Biológico Hongos Candida Vid Ácidos Grasos Luz del Día Lluvia Biological Control Agents Fungi Grapevines Fatty Acids Daylight Rain Candida sake |
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Agentes de Control Biológico Hongos Candida Vid Ácidos Grasos Luz del Día Lluvia Biological Control Agents Fungi Grapevines Fatty Acids Daylight Rain Candida sake Agentes de Control Biológico Hongos Candida Vid Ácidos Grasos Luz del Día Lluvia Biological Control Agents Fungi Grapevines Fatty Acids Daylight Rain Candida sake Calvo Garrido, Carlos Viñas, Inmaculada Usall, Josep Rodriguez Romera, Mariela Carmen Ramos, María Concepción Teixidó, Neus Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors |
description |
Aims: As reliability of preharvest applications of biological control agents (BCAs) to control fruit pathogens is highly dependent on the survival of the selected organism, this study aimed to describe the population dynamics of the yeast‐BCA Candida sake (Saito & Ota) CPA‐1 on grape berries under the effect of abiotic factors such as temperature, relative humidity, sunlight and rainfall.
Methods and Results: Candida sake (5 × 107 CFU ml−1), combined with different concentrations of the food additive Fungicover®, was applied on grape berry clusters. Treated clusters were then exposed to abiotic factors in field or laboratory conditions, recovering populations to describe C. sake population dynamics. The addition of Fungicover significantly increased C. sake multiplication under optimal growth conditions and improved survival under fluctuating abiotic factors. After field applications, significant differences in populations on grape bunches exposed or covered by fine foliage were detected.
Simulated rainfall washed off C. sake populations by 0·6–0·9 log units after 20 mm of rain volume. Allowing populations to establish for 24 h or more, prior to a rain event, persistence on grape berries significantly increased and the effect of rain intensity was not observable.
Conclusions: Candida sake demonstrated high survival ability under unfavourable environmental conditions and persistence under intense rain. The study evidenced the importance of the first period just after application for C. sake survival on grape tissues and also the protective effect of the additive Fungicover. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Agentes de Control Biológico Hongos Candida Vid Ácidos Grasos Luz del Día Lluvia Biological Control Agents Fungi Grapevines Fatty Acids Daylight Rain Candida sake |
author |
Calvo Garrido, Carlos Viñas, Inmaculada Usall, Josep Rodriguez Romera, Mariela Carmen Ramos, María Concepción Teixidó, Neus |
author_facet |
Calvo Garrido, Carlos Viñas, Inmaculada Usall, Josep Rodriguez Romera, Mariela Carmen Ramos, María Concepción Teixidó, Neus |
author_sort |
Calvo Garrido, Carlos |
title |
Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors |
title_short |
Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors |
title_full |
Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors |
title_fullStr |
Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors |
title_full_unstemmed |
Survival of the biological control agent Candida sake CPA‐1 on grapes under the influence of abiotic factors |
title_sort |
survival of the biological control agent candida sake cpa‐1 on grapes under the influence of abiotic factors |
publisher |
Wiley |
publishDate |
2014-09 |
url |
https://onlinelibrary.wiley.com/doi/abs/10.1111/jam.12570 http://hdl.handle.net/20.500.12123/4681 https://doi.org/10.1111/jam.12570 |
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