Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and Sugarcane

Gluconacetobacter diazotrophicus is a plant-growth-promoting bacterium that colonizes sugarcane. In order to investigate molecular aspects of the G. diazotrophicus–sugarcane interaction, we performed a quantitative mass spectrometry-based proteomic analysis by 15N metabolic labeling of bacteria, roo...

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Main Authors: Letícia M. S. Lery, Adriana S. Hemerly, Eduardo M. Nogueira, Wanda M. A. von Krüger, Paulo M. Bisch
Format: Article
Language:English
Published: The American Phytopathological Society 2011-05-01
Series:Molecular Plant-Microbe Interactions
Online Access:https://apsjournals.apsnet.org/doi/10.1094/MPMI-08-10-0178
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author Letícia M. S. Lery
Adriana S. Hemerly
Eduardo M. Nogueira
Wanda M. A. von Krüger
Paulo M. Bisch
author_facet Letícia M. S. Lery
Adriana S. Hemerly
Eduardo M. Nogueira
Wanda M. A. von Krüger
Paulo M. Bisch
author_sort Letícia M. S. Lery
collection DOAJ
description Gluconacetobacter diazotrophicus is a plant-growth-promoting bacterium that colonizes sugarcane. In order to investigate molecular aspects of the G. diazotrophicus–sugarcane interaction, we performed a quantitative mass spectrometry-based proteomic analysis by 15N metabolic labeling of bacteria, root samples, and co-cultures. Overall, more than 400 proteins were analyzed and 78 were differentially expressed between the plant–bacterium interaction model and control cultures. A comparative analysis of the G. diazotrophicus in interaction with two distinct genotypes of sugarcane, SP70-1143 and Chunee, revealed proteins with fundamental roles in cellular recognition. G. diazotrophicus presented proteins involved in adaptation to atypical conditions and signaling systems during the interaction with both genotypes. However, SP70-1143 and Chunee, sugarcane genotypes with high and low contribution of biological nitrogen fixation, showed divergent responses in contact with G. diazotrophicus. The SP70-1143 genotype overexpressed proteins from signaling cascades and one from a lipid metabolism pathway, whereas Chunee differentially synthesized proteins involved in chromatin remodeling and protein degradation pathways. In addition, we have identified 30 bacterial proteins in the roots of the plant samples; from those, nine were specifically induced by plant signals. This is the first quantitative proteomic analysis of a bacterium–plant interaction, which generated insights into early signaling of the G. diazotrophicus–sugarcane interaction.
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spelling doaj.art-ac322f6f722d444cae8ed556e1dd45612022-12-21T22:09:32ZengThe American Phytopathological SocietyMolecular Plant-Microbe Interactions0894-02821943-77062011-05-0124556257610.1094/MPMI-08-10-0178Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and SugarcaneLetícia M. S. LeryAdriana S. HemerlyEduardo M. NogueiraWanda M. A. von KrügerPaulo M. BischGluconacetobacter diazotrophicus is a plant-growth-promoting bacterium that colonizes sugarcane. In order to investigate molecular aspects of the G. diazotrophicus–sugarcane interaction, we performed a quantitative mass spectrometry-based proteomic analysis by 15N metabolic labeling of bacteria, root samples, and co-cultures. Overall, more than 400 proteins were analyzed and 78 were differentially expressed between the plant–bacterium interaction model and control cultures. A comparative analysis of the G. diazotrophicus in interaction with two distinct genotypes of sugarcane, SP70-1143 and Chunee, revealed proteins with fundamental roles in cellular recognition. G. diazotrophicus presented proteins involved in adaptation to atypical conditions and signaling systems during the interaction with both genotypes. However, SP70-1143 and Chunee, sugarcane genotypes with high and low contribution of biological nitrogen fixation, showed divergent responses in contact with G. diazotrophicus. The SP70-1143 genotype overexpressed proteins from signaling cascades and one from a lipid metabolism pathway, whereas Chunee differentially synthesized proteins involved in chromatin remodeling and protein degradation pathways. In addition, we have identified 30 bacterial proteins in the roots of the plant samples; from those, nine were specifically induced by plant signals. This is the first quantitative proteomic analysis of a bacterium–plant interaction, which generated insights into early signaling of the G. diazotrophicus–sugarcane interaction.https://apsjournals.apsnet.org/doi/10.1094/MPMI-08-10-0178
spellingShingle Letícia M. S. Lery
Adriana S. Hemerly
Eduardo M. Nogueira
Wanda M. A. von Krüger
Paulo M. Bisch
Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and Sugarcane
Molecular Plant-Microbe Interactions
title Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and Sugarcane
title_full Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and Sugarcane
title_fullStr Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and Sugarcane
title_full_unstemmed Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and Sugarcane
title_short Quantitative Proteomic Analysis of the Interaction Between the Endophytic Plant-Growth-Promoting Bacterium Gluconacetobacter diazotrophicus and Sugarcane
title_sort quantitative proteomic analysis of the interaction between the endophytic plant growth promoting bacterium gluconacetobacter diazotrophicus and sugarcane
url https://apsjournals.apsnet.org/doi/10.1094/MPMI-08-10-0178
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