Cargando…

Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage

Blackleg, caused by Leptosphaeria maculans, is a major threat to canola production in Canada. With the exception of China, L. maculans is present in areas around the world where cruciferous crops are grown. The pathogen can cause trade barriers in international canola seed export due to its potentia...

Descripción completa

Detalles Bibliográficos
Autores principales: Fernando, W. G. Dilantha, Zhang, Xuehua, Amarasinghe, Chami C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4844414/
https://www.ncbi.nlm.nih.gov/pubmed/27135232
http://dx.doi.org/10.3390/plants5010012
_version_ 1782428767881265152
author Fernando, W. G. Dilantha
Zhang, Xuehua
Amarasinghe, Chami C.
author_facet Fernando, W. G. Dilantha
Zhang, Xuehua
Amarasinghe, Chami C.
author_sort Fernando, W. G. Dilantha
collection PubMed
description Blackleg, caused by Leptosphaeria maculans, is a major threat to canola production in Canada. With the exception of China, L. maculans is present in areas around the world where cruciferous crops are grown. The pathogen can cause trade barriers in international canola seed export due to its potential risk as a seed contaminant. The most recent example is China restricting canola seeds imported from Canada and Australia in 2009. Therefore, it is important to assess the level of Blackleg infection in Canadian canola seed lots and dockage (seeds and admixture). In this study, canola seed lots and dockage samples collected from Western Canada were tested for the presence of the aggressive L. maculans and the less aggressive L. biglobosa. Results showed that both L. maculans and L. biglobosa were present in seed lots and dockage samples, with L. biglobosa being predominant in infected seeds. Admixture separated from dockage had higher levels of L. maculans and L. biglobosa infection than samples from seed lots. Admixture appears to harbour higher levels of L. maculans infection compared to seeds and is more likely to be a major source of inoculum for the spread of the disease than infected seeds.
format Online
Article
Text
id pubmed-4844414
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-48444142016-04-29 Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage Fernando, W. G. Dilantha Zhang, Xuehua Amarasinghe, Chami C. Plants (Basel) Article Blackleg, caused by Leptosphaeria maculans, is a major threat to canola production in Canada. With the exception of China, L. maculans is present in areas around the world where cruciferous crops are grown. The pathogen can cause trade barriers in international canola seed export due to its potential risk as a seed contaminant. The most recent example is China restricting canola seeds imported from Canada and Australia in 2009. Therefore, it is important to assess the level of Blackleg infection in Canadian canola seed lots and dockage (seeds and admixture). In this study, canola seed lots and dockage samples collected from Western Canada were tested for the presence of the aggressive L. maculans and the less aggressive L. biglobosa. Results showed that both L. maculans and L. biglobosa were present in seed lots and dockage samples, with L. biglobosa being predominant in infected seeds. Admixture separated from dockage had higher levels of L. maculans and L. biglobosa infection than samples from seed lots. Admixture appears to harbour higher levels of L. maculans infection compared to seeds and is more likely to be a major source of inoculum for the spread of the disease than infected seeds. MDPI 2016-03-01 /pmc/articles/PMC4844414/ /pubmed/27135232 http://dx.doi.org/10.3390/plants5010012 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fernando, W. G. Dilantha
Zhang, Xuehua
Amarasinghe, Chami C.
Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage
title Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage
title_full Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage
title_fullStr Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage
title_full_unstemmed Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage
title_short Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage
title_sort detection of leptosphaeria maculans and leptosphaeria biglobosa causing blackleg disease in canola from canadian canola seed lots and dockage
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4844414/
https://www.ncbi.nlm.nih.gov/pubmed/27135232
http://dx.doi.org/10.3390/plants5010012
work_keys_str_mv AT fernandowgdilantha detectionofleptosphaeriamaculansandleptosphaeriabiglobosacausingblacklegdiseaseincanolafromcanadiancanolaseedlotsanddockage
AT zhangxuehua detectionofleptosphaeriamaculansandleptosphaeriabiglobosacausingblacklegdiseaseincanolafromcanadiancanolaseedlotsanddockage
AT amarasinghechamic detectionofleptosphaeriamaculansandleptosphaeriabiglobosacausingblacklegdiseaseincanolafromcanadiancanolaseedlotsanddockage