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Characterization of volatile signatures of Pectobacterium and Dickeya spp. as biomarkers for early detection and identification - A major tool in potato blackleg and tuber soft rot management
Year:
2021
Source of publication :
LWT - Food Science and Technology
Authors :
Eltzov, Evgeni
;
.
Lebiush-Mordechai, Sara
;
.
Namdar, Dvory
;
.
Tietel, Zipora
;
.
Tsror, Leah
;
.
Voet, Hillary
;
.
Volume :
144
Co-Authors:

Tietel, Z.
Melamed, S.
Lebiush, S.
Voet, H.
Namdar, D.
Eltzov, E.
Tsror (Lahkim), L.

Facilitators :
From page:
0
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Total pages:
1
)
Abstract:

Potato blackleg and tuber soft rot diseases, caused by the pectinolytic bacteria Pectobacterium and Dickeya spp., result in severe yield losses worldwide. Early detection of pectinolytic bacterial infections is an important tool in disease management for sustainable potato production. The main goal of the current study was to profile the volatile composition of tubers inoculated with pectinolytic bacteria, in order to identify biomarkers for inoculation with different pathogens. Potato tubers were inoculated with two genera of bacteria (five species and/or sub-species, 4–5 strains of each). The headspace was sampled via solid-phase microextraction method, and volatiles were further profiled using gas chromatography-mass spectrometry. Using discriminant analysis, we were able to identify volatiles as differentiating biomarkers, indicating either non-specific or species-specific inoculation. Dimethyl ether was increased in all inoculated samples regardless of the genus or species; hexanal was increased in inoculation with Dickeya compared to Pectobacterium; 2-methylbutanol and 2,3-octanedione differentiated between Pectobacterium species inoculation; and 2-pentyl thiophene differentiated between Dickeya species inoculation. Early detection of pectinolytic bacteria through continuous monitoring of storage facility and tuber shipments atmosphere may be a powerful tool in preventing and mitigating tuber soft rots, avoiding severe economic damages and global food loss.

Note:
Related Files :
bacteria
Bacterial Infections
discriminant analysis
Gas Chromatography
monitoring
Solanum tuberosum
Show More
Related Content
More details
DOI :
10.1016/j.lwt.2021.111236
Article number:
111236
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
54519
Last updated date:
02/03/2022 17:27
Creation date:
11/04/2021 16:07
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Scientific Publication
Characterization of volatile signatures of Pectobacterium and Dickeya spp. as biomarkers for early detection and identification - A major tool in potato blackleg and tuber soft rot management
144

Tietel, Z.
Melamed, S.
Lebiush, S.
Voet, H.
Namdar, D.
Eltzov, E.
Tsror (Lahkim), L.

Characterization of volatile signatures of Pectobacterium and Dickeya spp. as biomarkers for early detection and identification - A major tool in potato blackleg and tuber soft rot management

Potato blackleg and tuber soft rot diseases, caused by the pectinolytic bacteria Pectobacterium and Dickeya spp., result in severe yield losses worldwide. Early detection of pectinolytic bacterial infections is an important tool in disease management for sustainable potato production. The main goal of the current study was to profile the volatile composition of tubers inoculated with pectinolytic bacteria, in order to identify biomarkers for inoculation with different pathogens. Potato tubers were inoculated with two genera of bacteria (five species and/or sub-species, 4–5 strains of each). The headspace was sampled via solid-phase microextraction method, and volatiles were further profiled using gas chromatography-mass spectrometry. Using discriminant analysis, we were able to identify volatiles as differentiating biomarkers, indicating either non-specific or species-specific inoculation. Dimethyl ether was increased in all inoculated samples regardless of the genus or species; hexanal was increased in inoculation with Dickeya compared to Pectobacterium; 2-methylbutanol and 2,3-octanedione differentiated between Pectobacterium species inoculation; and 2-pentyl thiophene differentiated between Dickeya species inoculation. Early detection of pectinolytic bacteria through continuous monitoring of storage facility and tuber shipments atmosphere may be a powerful tool in preventing and mitigating tuber soft rots, avoiding severe economic damages and global food loss.

Scientific Publication
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