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Biological control of Penicillium italicum, P. digitatum and P. expansum by the predacious yeast Saccharomycopsis schoenii on oranges.

Authors
  • Pimenta, Raphael S
  • Silva, Francisco L
  • Silva, Juliana F M
  • Morais, Paula B
  • Braga, Danúbia T
  • Rosa, Carlos A
  • Corrêa, Ary Jr
Type
Published Article
Journal
Brazilian Journal of Microbiology
Publisher
Elsevier
Publication Date
Jan 01, 2008
Volume
39
Issue
1
Pages
85–90
Identifiers
DOI: 10.1590/S1517-838220080001000020
PMID: 24031185
Source
Medline
Keywords
License
Unknown

Abstract

In this study we evaluated the ability of Saccharomycopsis schoenii Nadson and Krassiln (UWO-PS 80-91) as biocontrol agent against plant pathogenic filamentous fungi P. expansum Link (UFMG 01-2002), P. italicum Wehmer (LCP 61.1199), and P. digitatum (Pers.: Fr.) (LCP 984263, LCP 68175 and LCP 4354). S. schoenii was able to reduce disease severity in oranges inoculated with all fungi. Among the phytopathogens, P. digitatum LCP4354 was the most virulent whereas P. digitatum LCP 68175 was the most susceptible to predation. The yeast was able to survive for 21 days on the fruit surface and did not produce lesions on oranges. Production of antagonistic substances by S. schoenii was not detected using standard techniques. Our results point to the potential use of S. schoenii to control postharvest phytopathogens in fruits.

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