Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.

Zebra chip disease of potato is caused by a bacterial pathogen, 'Candidatus Liberibacter solanacearum', vectored by the tomato potato psyllid (Bactericera cockerelli Sulc.). The plant response to the disease was explored using a combined transcriptomic and metabolomic approach. The effects...

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Main Authors: Margaret A Carpenter, Tonya J Frew, Helen L Boldingh, Simona Nardozza, Martin L Shaw, Susan J Thomson, Rebecca D Cooper, Gail M Timmerman-Vaughan
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0328035
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author Margaret A Carpenter
Tonya J Frew
Helen L Boldingh
Simona Nardozza
Martin L Shaw
Susan J Thomson
Rebecca D Cooper
Gail M Timmerman-Vaughan
author_facet Margaret A Carpenter
Tonya J Frew
Helen L Boldingh
Simona Nardozza
Martin L Shaw
Susan J Thomson
Rebecca D Cooper
Gail M Timmerman-Vaughan
author_sort Margaret A Carpenter
collection DOAJ
description Zebra chip disease of potato is caused by a bacterial pathogen, 'Candidatus Liberibacter solanacearum', vectored by the tomato potato psyllid (Bactericera cockerelli Sulc.). The plant response to the disease was explored using a combined transcriptomic and metabolomic approach. The effects of the disease were greater in tuber than in leaf or stem tissues, and represent a massive reprogramming of the tuber metabolism, with expression changes observed for many genes. In the tuber, starch synthesis was severely disrupted, with reduced expression of most starch synthesis genes, but increased expression of the gene encoding vacuolar invertase. This was consistent with increased glucose and fructose and reduced starch in the tuber, which are the hallmarks of the disease and the causes of the symptoms problematic to the potato industry. The phenylpropanoid pathway was more active in diseased tubers, as shown by increased transcript accumulation for phenylalanine ammonia lyase, cinnamate-4-hydroxylase, 4-coumarate:CoA ligase and cinnamyl alcohol dehydrogenase, and increased quantities of hydroxycinnamic acid amides, phenolic acids and coumarins. The expression of several genes encoding patatin storage proteins in the tuber was also decreased. In addition to the carbohydrate changes which cause undesirable visual symptoms associated with frying, the diseased tubers showed detrimental changes in nutritional value, such as increased toxic glycoalkaloids and decreased ascorbic acid.
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spelling doaj-art-c882ed2a49744c6aae3ba4864e952fd02025-08-20T02:37:01ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01207e032803510.1371/journal.pone.0328035Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.Margaret A CarpenterTonya J FrewHelen L BoldinghSimona NardozzaMartin L ShawSusan J ThomsonRebecca D CooperGail M Timmerman-VaughanZebra chip disease of potato is caused by a bacterial pathogen, 'Candidatus Liberibacter solanacearum', vectored by the tomato potato psyllid (Bactericera cockerelli Sulc.). The plant response to the disease was explored using a combined transcriptomic and metabolomic approach. The effects of the disease were greater in tuber than in leaf or stem tissues, and represent a massive reprogramming of the tuber metabolism, with expression changes observed for many genes. In the tuber, starch synthesis was severely disrupted, with reduced expression of most starch synthesis genes, but increased expression of the gene encoding vacuolar invertase. This was consistent with increased glucose and fructose and reduced starch in the tuber, which are the hallmarks of the disease and the causes of the symptoms problematic to the potato industry. The phenylpropanoid pathway was more active in diseased tubers, as shown by increased transcript accumulation for phenylalanine ammonia lyase, cinnamate-4-hydroxylase, 4-coumarate:CoA ligase and cinnamyl alcohol dehydrogenase, and increased quantities of hydroxycinnamic acid amides, phenolic acids and coumarins. The expression of several genes encoding patatin storage proteins in the tuber was also decreased. In addition to the carbohydrate changes which cause undesirable visual symptoms associated with frying, the diseased tubers showed detrimental changes in nutritional value, such as increased toxic glycoalkaloids and decreased ascorbic acid.https://doi.org/10.1371/journal.pone.0328035
spellingShingle Margaret A Carpenter
Tonya J Frew
Helen L Boldingh
Simona Nardozza
Martin L Shaw
Susan J Thomson
Rebecca D Cooper
Gail M Timmerman-Vaughan
Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.
PLoS ONE
title Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.
title_full Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.
title_fullStr Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.
title_full_unstemmed Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.
title_short Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.
title_sort transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease
url https://doi.org/10.1371/journal.pone.0328035
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