Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.

Common scab is a potato disease characterized by the formation of scab-like lesions on the surface of potato tubers. The actinobacterium Streptomyces scabiei is the main causal agent of common scab. During infection, this bacterium synthesizes the phytotoxin thaxtomin A which is essential for the pr...

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Autores principales:	Nathalie Beaudoin, Iauhenia Isayenka, Audrey Ducharme, Sophie Massie, André Gagnon, Richard Hogue, Carole Beaulieu, Dominique Michaud
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d9bb6b63100043589518d579da8ae169
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spelling	oai:doaj.org-article:d9bb6b63100043589518d579da8ae1692021-12-02T20:10:34ZHabituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.1932-620310.1371/journal.pone.0253414https://doaj.org/article/d9bb6b63100043589518d579da8ae1692021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253414https://doaj.org/toc/1932-6203Common scab is a potato disease characterized by the formation of scab-like lesions on the surface of potato tubers. The actinobacterium Streptomyces scabiei is the main causal agent of common scab. During infection, this bacterium synthesizes the phytotoxin thaxtomin A which is essential for the production of disease symptoms. While thaxtomin A can activate an atypical programmed cell death in plant cell suspensions, it is possible to gradually habituate plant cells to thaxtomin A to provide resistance to lethal phytotoxin concentrations. Potato 'Russet Burbank' calli were habituated to thaxtomin A to regenerate the somaclone RB9 that produced tubers more resistant to common scab than those obtained from the original cultivar. Compared to the Russet Burbank cultivar, somaclone RB9 generated up to 22% more marketable tubers with an infected tuber area below the 5% threshold. Enhanced resistance was maintained over at least two years of cultivation in the field. However, average size of tubers was significantly reduced in somaclone RB9 compared to the parent cultivar. Small RB9 tubers had a thicker phellem than Russet Burbank tubers, which may contribute to improving resistance to common scab. These results show that thaxtomin A-habituation in potato is efficient to produce somaclones with increased and durable resistance to common scab.Nathalie BeaudoinIauhenia IsayenkaAudrey DucharmeSophie MassieAndré GagnonRichard HogueCarole BeaulieuDominique MichaudPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0253414 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nathalie Beaudoin Iauhenia Isayenka Audrey Ducharme Sophie Massie André Gagnon Richard Hogue Carole Beaulieu Dominique Michaud Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.
description	Common scab is a potato disease characterized by the formation of scab-like lesions on the surface of potato tubers. The actinobacterium Streptomyces scabiei is the main causal agent of common scab. During infection, this bacterium synthesizes the phytotoxin thaxtomin A which is essential for the production of disease symptoms. While thaxtomin A can activate an atypical programmed cell death in plant cell suspensions, it is possible to gradually habituate plant cells to thaxtomin A to provide resistance to lethal phytotoxin concentrations. Potato 'Russet Burbank' calli were habituated to thaxtomin A to regenerate the somaclone RB9 that produced tubers more resistant to common scab than those obtained from the original cultivar. Compared to the Russet Burbank cultivar, somaclone RB9 generated up to 22% more marketable tubers with an infected tuber area below the 5% threshold. Enhanced resistance was maintained over at least two years of cultivation in the field. However, average size of tubers was significantly reduced in somaclone RB9 compared to the parent cultivar. Small RB9 tubers had a thicker phellem than Russet Burbank tubers, which may contribute to improving resistance to common scab. These results show that thaxtomin A-habituation in potato is efficient to produce somaclones with increased and durable resistance to common scab.
format	article
author	Nathalie Beaudoin Iauhenia Isayenka Audrey Ducharme Sophie Massie André Gagnon Richard Hogue Carole Beaulieu Dominique Michaud
author_facet	Nathalie Beaudoin Iauhenia Isayenka Audrey Ducharme Sophie Massie André Gagnon Richard Hogue Carole Beaulieu Dominique Michaud
author_sort	Nathalie Beaudoin
title	Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.
title_short	Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.
title_full	Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.
title_fullStr	Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.
title_full_unstemmed	Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.
title_sort	habituation to thaxtomin a increases resistance to common scab in 'russet burbank' potato.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/d9bb6b63100043589518d579da8ae169
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Habituation to thaxtomin A increases resistance to common scab in 'Russet Burbank' potato.

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