Detection of fungi and oomycetes by volatiles using E-nose and SPME-GC/MS platforms

Loulier, Jérémie (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Lefort, François (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Stocki, Marcin (Bialystok University of Technology, Bialystok, Poland) ; Asztemborska, Monika (Polish Academy of Sciences, Warsaw, Poland) ; Szmigielski, Rafal (Polish Academy of Sciences, Warsaw, Poland) ; Siwek, Krzysztof (Warsaw University of Technology, Warsaw, Poland) ; Grzywacz, Tomasz (Warsaw University of Technology, Warsaw, Poland) ; Hsiang, Tom (University of Guelph, Guelph, Canada) ; Sluraski, Slawomir (Forest Protection Department, Forest Research Institute, Sekocin Stary, Poland) ; Oszako, Tomasz (Bialystok University of Technology, Bialystok, Poland ; Forest Protection Department, Forest Research Institute, Sekocin Stary, Poland) ; Klisz, Marcin (Department of Silviculture and Genetics, Forest Research Institute, Swkocin Stary, Poland) ; Tarakowski, Rafal (Warsaw University of Technology, Warsaw, Poland) ; Nowakowska, Justyna Anna (Cardinal Stefan Wyszynski University in Warsaw, Warsaw, Poland)

Fungi and oomycetes release volatiles into their environment which could be used for olfactory detection and identification of these organisms by electronic-nose (e-nose). The aim of this study was to survey volatile compound emission using an e-nose device and to identify released molecules through solid phase microextraction–gas chromatography/mass spectrometry (SPME–GC/MS) analysis to ultimately develop a detection system for fungi and fungi-like organisms. To this end, cultures of eight fungi (Armillaria gallica, Armillaria ostoyae, Fusarium avenaceum, Fusarium culmorum, Fusarium oxysporum, Fusarium poae, Rhizoctonia solani, Trichoderma asperellum) and four oomycetes (Phytophthora cactorum, P. cinnamomi, P. plurivora, P. ramorum) were tested with the e-nose system and investigated by means of SPME-GC/MS. Strains of F. poae, R. solani and T. asperellum appeared to be the most odoriferous. All investigated fungal species (except R. solani) produced sesquiterpenes in variable amounts, in contrast to the tested oomycetes strains. Other molecules such as aliphatic hydrocarbons, alcohols, aldehydes, esters and benzene derivatives were found in all samples. The results suggested that the major differences between respective VOC emission ranges of the tested species lie in sesquiterpene production, with fungi emitting some while oomycetes released none or smaller amounts of such molecules. Our e-nose system could discriminate between the odors emitted by P. ramorum, F. poae, T. asperellum and R. solani, which accounted for over 88% of the PCA variance. These preliminary results of fungal and oomycete detection make the e-nose device suitable for further sensor design as a potential tool for forest managers, other plant managers, as well as regulatory agencies such as quarantine services.


Keywords:
Article Type:
scientifique
Faculty:
Ingénierie et Architecture
School:
HEPIA - Genève
Institute:
inTNE - Institut Terre-Nature-Environnement
Date:
2020-12
Pagination:
27 p.
Published in:
Molecules
Numeration (vol. no.):
2020, vol. 25, no. 23, article no. 5749
DOI:
ISSN:
1420-3049
Appears in Collection:



 Record created 2021-01-19, last modified 2021-02-26

Fulltext:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)