Population, virulence, and mycotoxin profile of Fusarium spp. associated with basal rot of Allium spp. in Vietnam
- Author
- Dung Le, Maarten Ameye (UGent) , Marthe De Boevre (UGent) , Sarah De Saeger (UGent) , Kris Audenaert (UGent) and Geert Haesaert (UGent)
- Organization
- Abstract
- Fusarium basal rot (FBR) is particularly problematic to Allium producers worldwide. In Vietnam, information on the profile of FBR is scarce, even though the presence of Fusarium spp. in Allium plants has long been recorded. In this study, a total of 180 isolates of Fusarium spp. were recovered from Allium bulbs/plants showing symptoms of FBR in 34 commercial Allium fields around Da Lat, Lam Dong, Vietnam. These isolates were identified to the species level by sequencing the internal transcribed spacer region and the translation elongation factor 1 alpha gene. F. oxysporum was most prevalent (81%) in samples from all locations and Allium varieties, followed by F. solani (15%) and F. proliferatum (4%), which were only found in onion (Allium cepa L.). Pathogenicity tests on onion seedlings (56 isolates) and mini bulbs (10 isolates) indicated that onion can be infected by all of these species but virulence varied greatly between isolates. Moreover, isolates that were virulent on seedlings were sometimes not virulent on bulbs and vice versa, which points to a specialization of isolates for the host phenology. Mycotoxin analyses showed that the highest amounts of beauvericin were detected in seedlings and bulbs infected by F. oxysporum, whereas F. proliferatum was mainly responsible for the presence of fumonisin B-1 in bulbs, suggesting a natural occurrence of beauvericin and fumonisin B-1 in onions infected by these pathogens.
- Keywords
- Agronomy and Crop Science, Plant Science, Allium, Fusarium basal rot, LC-MS/MS, mycotoxins, virulence variability, PROLIFERATUM CAUSING ROT, F-SP CEPAE, FUMONISIN B-1, ONION BULBS, GARLIC BULBS, 1ST REPORT, OXYSPORUM, RESISTANCE, IDENTIFICATION, PATHOGENICITY
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8704624
- MLA
- Le, Dung, et al. “Population, Virulence, and Mycotoxin Profile of Fusarium Spp. Associated with Basal Rot of Allium Spp. in Vietnam.” PLANT DISEASE, vol. 105, no. 7, 2021, pp. 1942–50, doi:10.1094/pdis-08-20-1850-re.
- APA
- Le, D., Ameye, M., De Boevre, M., De Saeger, S., Audenaert, K., & Haesaert, G. (2021). Population, virulence, and mycotoxin profile of Fusarium spp. associated with basal rot of Allium spp. in Vietnam. PLANT DISEASE, 105(7), 1942–1950. https://doi.org/10.1094/pdis-08-20-1850-re
- Chicago author-date
- Le, Dung, Maarten Ameye, Marthe De Boevre, Sarah De Saeger, Kris Audenaert, and Geert Haesaert. 2021. “Population, Virulence, and Mycotoxin Profile of Fusarium Spp. Associated with Basal Rot of Allium Spp. in Vietnam.” PLANT DISEASE 105 (7): 1942–50. https://doi.org/10.1094/pdis-08-20-1850-re.
- Chicago author-date (all authors)
- Le, Dung, Maarten Ameye, Marthe De Boevre, Sarah De Saeger, Kris Audenaert, and Geert Haesaert. 2021. “Population, Virulence, and Mycotoxin Profile of Fusarium Spp. Associated with Basal Rot of Allium Spp. in Vietnam.” PLANT DISEASE 105 (7): 1942–1950. doi:10.1094/pdis-08-20-1850-re.
- Vancouver
- 1.Le D, Ameye M, De Boevre M, De Saeger S, Audenaert K, Haesaert G. Population, virulence, and mycotoxin profile of Fusarium spp. associated with basal rot of Allium spp. in Vietnam. PLANT DISEASE. 2021;105(7):1942–50.
- IEEE
- [1]D. Le, M. Ameye, M. De Boevre, S. De Saeger, K. Audenaert, and G. Haesaert, “Population, virulence, and mycotoxin profile of Fusarium spp. associated with basal rot of Allium spp. in Vietnam,” PLANT DISEASE, vol. 105, no. 7, pp. 1942–1950, 2021.
@article{8704624,
abstract = {{Fusarium basal rot (FBR) is particularly problematic to Allium producers worldwide. In Vietnam, information on the profile of FBR is scarce, even though the presence of Fusarium spp. in Allium plants has long been recorded. In this study, a total of 180 isolates of Fusarium spp. were recovered from Allium bulbs/plants showing symptoms of FBR in 34 commercial Allium fields around Da Lat, Lam Dong, Vietnam. These isolates were identified to the species level by sequencing the internal transcribed spacer region and the translation elongation factor 1 alpha gene. F. oxysporum was most prevalent (81%) in samples from all locations and Allium varieties, followed by F. solani (15%) and F. proliferatum (4%), which were only found in onion (Allium cepa L.). Pathogenicity tests on onion seedlings (56 isolates) and mini bulbs (10 isolates) indicated that onion can be infected by all of these species but virulence varied greatly between isolates. Moreover, isolates that were virulent on seedlings were sometimes not virulent on bulbs and vice versa, which points to a specialization of isolates for the host phenology. Mycotoxin analyses showed that the highest amounts of beauvericin were detected in seedlings and bulbs infected by F. oxysporum, whereas F. proliferatum was mainly responsible for the presence of fumonisin B-1 in bulbs, suggesting a natural occurrence of beauvericin and fumonisin B-1 in onions infected by these pathogens.}},
author = {{Le, Dung and Ameye, Maarten and De Boevre, Marthe and De Saeger, Sarah and Audenaert, Kris and Haesaert, Geert}},
issn = {{0191-2917}},
journal = {{PLANT DISEASE}},
keywords = {{Agronomy and Crop Science,Plant Science,Allium,Fusarium basal rot,LC-MS/MS,mycotoxins,virulence variability,PROLIFERATUM CAUSING ROT,F-SP CEPAE,FUMONISIN B-1,ONION BULBS,GARLIC BULBS,1ST REPORT,OXYSPORUM,RESISTANCE,IDENTIFICATION,PATHOGENICITY}},
language = {{eng}},
number = {{7}},
pages = {{1942--1950}},
title = {{Population, virulence, and mycotoxin profile of Fusarium spp. associated with basal rot of Allium spp. in Vietnam}},
url = {{http://doi.org/10.1094/pdis-08-20-1850-re}},
volume = {{105}},
year = {{2021}},
}
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