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Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato

Disease caused by the bacterial pathogen “Candidatus Liberibacter solanacearum” (Lso) represents a serious threat to solanaceous crop production. Insecticide applications to control the psyllid vector, Bactericera cockerelli Šulc (Hemiptera: Triozidae) has led to the emergence of resistance in psyll...

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Autores principales: Tiénébo, Eric-Olivier, Harrison, Kyle, Abo, Kouabenan, Brou, Yao Casimir, Pierson, Leland S., Tamborindeguy, Cecilia, Pierson, Elizabeth A., Levy, Julien G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6918281/
https://www.ncbi.nlm.nih.gov/pubmed/31731657
http://dx.doi.org/10.3390/plants8110507
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author Tiénébo, Eric-Olivier
Harrison, Kyle
Abo, Kouabenan
Brou, Yao Casimir
Pierson, Leland S.
Tamborindeguy, Cecilia
Pierson, Elizabeth A.
Levy, Julien G.
author_facet Tiénébo, Eric-Olivier
Harrison, Kyle
Abo, Kouabenan
Brou, Yao Casimir
Pierson, Leland S.
Tamborindeguy, Cecilia
Pierson, Elizabeth A.
Levy, Julien G.
author_sort Tiénébo, Eric-Olivier
collection PubMed
description Disease caused by the bacterial pathogen “Candidatus Liberibacter solanacearum” (Lso) represents a serious threat to solanaceous crop production. Insecticide applications to control the psyllid vector, Bactericera cockerelli Šulc (Hemiptera: Triozidae) has led to the emergence of resistance in psyllids populations. Efforts to select natural resistant cultivars have been marginally successful and have been complicated by the presence of distinct Lso haplotypes (LsoA, LsoB) differing in symptoms severity on potato and tomato. A potentially promising management tool is to boost host resistance to the pathogen and/or the insect vector by promoting mycorrhization. Here we tested the hypothesis that mycorrhizal fungi can mitigate the effect of Lso infection on tomato plants. The presence of mycorrhizal fungi substantially delayed and reduced the incidence of Lso-induced symptoms on tomato as compared to non-mycorrhized plants. However, PCR with specific Lso primers revealed that mycorrhization did not prevent Lso transmission or translocation to newly formed leaves. Mycorrhization significantly reduced oviposition by psyllids harboring LsoA and survival of nymphs from these eggs. However, mycorrhization had no effect on oviposition by psyllids harboring LsoB or the survival of nymphs from parents harboring LsoB. These findings indicate the use of mycorrhizal fungi is a promising strategy for the mitigation of disease caused by both LsoA and LsoB and warrants additional field testing.
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spelling pubmed-69182812019-12-24 Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato Tiénébo, Eric-Olivier Harrison, Kyle Abo, Kouabenan Brou, Yao Casimir Pierson, Leland S. Tamborindeguy, Cecilia Pierson, Elizabeth A. Levy, Julien G. Plants (Basel) Article Disease caused by the bacterial pathogen “Candidatus Liberibacter solanacearum” (Lso) represents a serious threat to solanaceous crop production. Insecticide applications to control the psyllid vector, Bactericera cockerelli Šulc (Hemiptera: Triozidae) has led to the emergence of resistance in psyllids populations. Efforts to select natural resistant cultivars have been marginally successful and have been complicated by the presence of distinct Lso haplotypes (LsoA, LsoB) differing in symptoms severity on potato and tomato. A potentially promising management tool is to boost host resistance to the pathogen and/or the insect vector by promoting mycorrhization. Here we tested the hypothesis that mycorrhizal fungi can mitigate the effect of Lso infection on tomato plants. The presence of mycorrhizal fungi substantially delayed and reduced the incidence of Lso-induced symptoms on tomato as compared to non-mycorrhized plants. However, PCR with specific Lso primers revealed that mycorrhization did not prevent Lso transmission or translocation to newly formed leaves. Mycorrhization significantly reduced oviposition by psyllids harboring LsoA and survival of nymphs from these eggs. However, mycorrhization had no effect on oviposition by psyllids harboring LsoB or the survival of nymphs from parents harboring LsoB. These findings indicate the use of mycorrhizal fungi is a promising strategy for the mitigation of disease caused by both LsoA and LsoB and warrants additional field testing. MDPI 2019-11-15 /pmc/articles/PMC6918281/ /pubmed/31731657 http://dx.doi.org/10.3390/plants8110507 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tiénébo, Eric-Olivier
Harrison, Kyle
Abo, Kouabenan
Brou, Yao Casimir
Pierson, Leland S.
Tamborindeguy, Cecilia
Pierson, Elizabeth A.
Levy, Julien G.
Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato
title Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato
title_full Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato
title_fullStr Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato
title_full_unstemmed Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato
title_short Mycorrhization Mitigates Disease Caused by “Candidatus Liberibacter solanacearum” in Tomato
title_sort mycorrhization mitigates disease caused by “candidatus liberibacter solanacearum” in tomato
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6918281/
https://www.ncbi.nlm.nih.gov/pubmed/31731657
http://dx.doi.org/10.3390/plants8110507
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