Abstract
ABSTRACT Postharvest diseases caused by fungal pathogens, such as Penicillium expansum and Botrytis cinerea , are responsible for apple fruit losses during storage and commercialization. Biological control agents (BCAs) using antagonistic microorganisms are an alternative to traditional fungicides, providing effective results while ensuring environmental safety. This study tested whether a microbial consortium of two distinct strains from different climatic conditions is more effective and stable than single strains. The selected pairs of microorganisms were presumably adapted to different ecological niches and consisted of the bacterium Pantoea agglomerans strain B296 (BV), isolated from the Ebro Valley, and the yeast Vishniacozyma carnescens L157 strain (YM), from the Pyrenees Mountains in Catalonia (Spain). The postharvest biocontrol potential of the microbial candidates was evaluated in real postharvest conditions. Prior to that, an analysis of their population dynamics and the minimum effective dose were carried out, after which, a fluidised-bed spray-dried formulation was developed and applied individually and in consortia. Efficacy was assessed against P . expansum and B . cinerea on two apple varieties (‘Golden Reinders’ and ‘Mandy’) under different storage conditions. The efficacy results showed that the consortium of two BCAs at a concentration of 10 7 CFU mL -1 effectively controlled P. expansum and B. cinerea under certain room temperature and cold storage conditions better than when applied separately. Therefore, the novel water dispersible granules (WG formulations) of two microorganisms, formulated together in a consortium using the fluidised-bed spray drying system, demonstrated significantly improved survivability compared to the individual formulations. Our results showed the potential of microbial consortia as a sustainable biocontrol product, as they performed better under certain storage conditions compared to the individual isolates in postharvest disease control. The use of consortia instead of monocultures represents a step forward in postharvest disease management, offering a promising alternative to chemical fungicides.
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Claims 3
Claim · model-written summary
The consortium controlled P. expansum better than separately applied agents under certain storage conditions.
- Taxon
- apple
Malus domesticat0 - Treatment
- consortium of two BCAs at a concentration of 10 7 CFU mL -1e0
- Interactor
- P. expansum
Penicillium expansume0pathogen - Outcome
- P. expansume0
- Direction
- bettere0
- Qualifier
- certain room temperature and cold storage conditionse0
- Comparator
- when applied separatelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The efficacy results showed that the consortium of two BCAs at a concentration of 10 7 CFU mL -1 effectively controlled P. expansum and B. cinerea under certain room temperature and cold storage conditions better than when applied separately”
t0“apple”
Claim · model-written summary
The consortium controlled B. cinerea better than separately applied agents under certain storage conditions.
- Taxon
- appleMalus domesticat0
- Treatment
- consortium of two BCAs at a concentration of 10 7 CFU mL -1e0
- Interactor
- B. cinerea
Botrytis cinereae0pathogen - Outcome
- B. cinereae0
- Direction
- bettere0
- Comparator
- when applied separatelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The efficacy results showed that the consortium of two BCAs at a concentration of 10 7 CFU mL -1 effectively controlled P. expansum and B. cinerea under certain room temperature and cold storage conditions better than when applied separately”
t0“apple”
Claim · model-written summary
Consortium granules had significantly improved survivability compared with individual formulations.
- Taxon
- appleMalus domesticat0
- Treatment
- formulated together in a consortiume0
- Outcome
- survivabilitye0
- Direction
- improvede0
- Comparator
- individual formulationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the novel water dispersible granules (WG formulations) of two microorganisms, formulated together in a consortium using the fluidised-bed spray drying system, demonstrated significantly improved survivability compared to the individual formulations”
t0“apple”
The same questions in other papers
biocontrol · Botrytis cinerea · Malus domestica (apple)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
biocontrol · Penicillium expansum · Malus domestica (apple)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.