Cited by 274Fungal Plant Pathogen ControlPostharvest Quality and Shelf Life ManagementPlant Pathogens and Fungal Diseases

Mode of action of the postharvest biocontrol yeast, Pichia guilliermondii. I. Characterization of attachment to Botrytis cinerea

Wisniewski, Michael, Biles, Charles, Droby, Samir, McLaughlin, Randy, Wilson, Charles, Chalutz, Edo·1991·Physiological and Molecular Plant Pathology

Abstract

An isolate (87) of the yeast Pichia guilliermondii, protects apples from postharvest fruit rotting fungi Botrytis cinera and Pencillium expansum. In order to examine the yeast-pathogen interaction, B. cinera was grown on agar plates overlayed with cellophane. Effective and non-effective yeast isolates were applied near the young hyphal growth. Samples were taken 24 h later from the area where the fungi and yeast had intersected. Light microscopy revealed a general attachment of the effective biocontrol agent P. guilliermondii (isolate 87) and a non-effective isolate (117) of Debaryomyces hansenii. Low temperature scanning electron microscopy (LTSEM) indicated that both species of yeast attached to the fungal hyphae, but the 87 isolate attached fastidiously. Twenty-four hours after applying the 87 isolate to B. cinera, pitting and collapse of the hyphae were observed. These observations were confirmed using transmission electron microscopy. These features were not observed with the ineffective isolate of D. hansenii. Further experiments indicated that attachment of P. guilliermondii to hyphae of B. cinera could be blocked by agents that alter protein integrity (salts, proteases, etc.) and certain sugars. Isolates of both species produced beta-(1-3) glucanase when cultured in various carbon sources and on cell walls of fruit rotting pathogens. Culture supernatants from P. guilliermondii, however, yielded two- to five-fold more beta-(1-3) glucanase activity compared with D. hansenii. Data indicate that tenacious attachment, along with secretion of cell wall degrading enzymes, may play a role in the biocontrol activity of this yeast antagonist.

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Crossref · 10.1016/0885-5765(91)90033-e

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  • P. guilliermondii strongly adheres to hyphae of the plant pathogen B. cinerea.

    “P. guilliermondii was shown to strongly adhere to hyphae of the plant pathogen B. cinerea”

    From Biocontrol yeasts: mechanisms and applications (2019) · cites this paper as Wisniewski et al. 1991

  • P. guilliermondii causes hyphal collapse of B. cinerea.

    “and to cause hyphal collapse”

    From Biocontrol yeasts: mechanisms and applications (2019) · cites this paper as Wisniewski et al. 1991

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Authors
Wisniewski, M., Biles, C., Droby, S., McLaughlin, R., Wilson, C., & Chalutz, E.
Affiliations
  • Agricultural Research Service (US)
  • New Mexico State University (US)
  • Agricultural Research Organization (IL)
Venue
Physiological and Molecular Plant Pathology
Publisher
Elsevier BV
Published
1991-10
Volume
39
Issue
4
Pages
245-258
ISSN
0885-5765 (ISSN-L)
OpenAlex
W104671088
Cited by
274
References
19
Citations by year
2026: 2 · 2025: 5 · 2024: 9 · 2023: 9 · 2022: 6 · 2021: 6 · 2020: 9 · 2019: 3 · 2018: 11 · 2017: 10 · 2016: 14 · 2015: 7 · 2014: 10 · 2013: 12 · 2012: 9
FWCI
1.46
Type
journal article
Language
en
Open access
closed
Locations
Physiological and Molecular Plant Pathology (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Fungal Plant Pathogen Control
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Postharvest Quality and Shelf Life Management
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Plant Pathogens and Fungal Diseases
Keywords
Candida guilliermondii, Botrytis cinerea, postharvest biocontrol, Debaryomyces hansenii, apple fruit rot, Penicillium expansum, β-1,3-glucanase, cell wall degrading enzymes, protein integrity

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