Cited by 129Yeasts and Rust Fungi StudiesPostharvest Quality and Shelf Life ManagementFungal Plant Pathogen Control

Biofilm production by Aureobasidium pullulans improves biocontrol against sour rot in citrus

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Klein, Mariana Nadjara, Kupper, Katia Cristina·2018·Food Microbiology

Abstract

The biocontrol efficiency of Aureobasidium pullulans strain ACBL-77 against Geotrichum citri-aurantii, causal agent of sour rot in citrus, and their interactions were evaluated. For this, were evaluated the incorporation of nutrients in optimizing the antagonistic activity of the yeast, the competition for nutrients between microorganisms, the effect of nutrients on yeast cell and biofilm production and their correlation in the biocontrol of disease, the survival of yeast in citrus fruits and the interaction between microorganisms using scanning electron microscopy. Micronutrients (boric acid, cobalt chloride and ammonium molybdate) favoured the antagonistic action of A. pullulans. Ammonium sulfate 1% and sucrose 0.5% favoured the yeast during the competition between the microorganisms. The addition of ammonium sulfate (1%) in the yeast culture stimulated biofilm production and increased the antagonistic activity against the disease, as also allowed the better survival of yeast in wounded sites of citrus fruit. The yeast was found to be able to form biofilms on citrus, deforming the pathogen hyphae. These results showed the importance of the addition of nutrients in A. pullulans based-formulations when aiming for their use on a commercial scale. This is the first report of a positive correlation between the increase in the quantity of biofilm produced by A. pullulans, with increased antagonistic activity.

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Crossref · 10.1016/j.fm.2017.07.008

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  • Biofilm formation has been implicated in the protective and biocontrol activities of A. pullulans, Kloeckera apiculata, S. cerevisiae, Pichia kudriavzevii, W. anomalus, and M. pulcherrima.

    “Besides P. fermentans, biofilm formation has also been implicated in the protective and biocontrol activities of A. pullulans, Kloeckera apiculata, S. cerevisiae, Pichia kudriavzevii, W. anomalus, and M. pulcherrima (Supplementary Table 1) (Chi et al. 2015; Klein and Kupper 2018; Ortu et al. 2005; Pu et al. 2014; Wachowska et al. 2016).”

    From Biocontrol yeasts: mechanisms and applications (2019) · cites this paper as Klein and Kupper 2018

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Authors
Klein, M. N., & Kupper, K. C.
Affiliations
Universidade Estadual Paulista (Unesp) (BR)
Venue
Food Microbiology
Publisher
Elsevier BV
Published
2018-02
Volume
69
Pages
1-10
ISSN
0740-0020 (ISSN-L)
OpenAlex
W2737872074
Cited by
129
References
49
Citations by year
2026: 18 · 2025: 14 · 2024: 9 · 2023: 13 · 2022: 24 · 2021: 18 · 2020: 16 · 2019: 9 · 2018: 8
FWCI
3.59
Type
journal article
Language
en
Open access
Locations
  • Food Microbiology (publishedVersion)
  • PubMed (publishedVersion)
  • Americanae (AECID Library) (publishedVersion, other-oa)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
Funders
CAPES
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Yeasts and Rust Fungi Studies
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Postharvest Quality and Shelf Life Management
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Fungal Plant Pathogen Control
Keywords
Aureobasidium pullulans, biofilm formation, biological control, sour rot, citrus, Geotrichum citri-aurantii, antagonistic activity, micronutrients, ammonium sulfate, nutrient competition
MeSH terms
Antibiosis, Ascomycota, Citrus, Geotrichum, Plant Diseases, Virulence, Biofilms, Hyphae

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