Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature data

IntroductionPruning wounds are the main entry points for fungi causing grapevine trunk diseases (GTDs). Several studies identified factors influencing the temporal dynamics of wound susceptibility, which include the fungal species and inoculum dose, weather conditions, grape variety, pruning date, a...

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Main Authors: Maria Chiara Rosace, Sara Elisabetta Legler, Irene Salotti, Vittorio Rossi
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-02-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2023.1063932/full
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author Maria Chiara Rosace
Sara Elisabetta Legler
Irene Salotti
Vittorio Rossi
author_facet Maria Chiara Rosace
Sara Elisabetta Legler
Irene Salotti
Vittorio Rossi
author_sort Maria Chiara Rosace
collection DOAJ
description IntroductionPruning wounds are the main entry points for fungi causing grapevine trunk diseases (GTDs). Several studies identified factors influencing the temporal dynamics of wound susceptibility, which include the fungal species and inoculum dose, weather conditions, grape variety, pruning date, and so forth. Here, we conducted a quantitative analysis of literature data to synthesise outcomes across studies and to identify the factors that most affect the length of pruning wound susceptibility.MethodsWe extracted data on the frequency at which the inoculated wounds showed GTD symptoms or an inoculated pathogen was reisolated following artificial inoculation at the time of pruning or in the following days. A negative exponential model was fit to these data to describe changes in wound susceptibility as a function of time since pruning, in which the rate parameter changed depending on specific factors.Results and DiscussionThe results show that wound susceptibility is high at the time of pruning, and they remain susceptible to invasion by GTD fungi for months after pruning. Infection incidence on wounds was higher for fungi associated with Botryosphaeria dieback than those associated with Eutypa dieback or Esca complex, and wound susceptibility decreased faster for Eutypa dieback than for other GTD agents. Grapevine variety and pruning season also affected the wound susceptibility period. Sauvignon Blanc remains susceptible to GTDs longer than other varieties. We also found that the time of pruning can affect infection dynamics, especially for more susceptible varieties. The results increase our understanding of GTD epidemiology and should help growers control infections.
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spelling doaj.art-b8e92e7710e944b197c0062360df01b92023-02-23T12:03:19ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-02-011410.3389/fpls.2023.10639321063932Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature dataMaria Chiara Rosace0Sara Elisabetta Legler1Irene Salotti2Vittorio Rossi3Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, ItalyHORTA S.r.l., Piacenza, ItalyDepartment of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, ItalyDepartment of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, ItalyIntroductionPruning wounds are the main entry points for fungi causing grapevine trunk diseases (GTDs). Several studies identified factors influencing the temporal dynamics of wound susceptibility, which include the fungal species and inoculum dose, weather conditions, grape variety, pruning date, and so forth. Here, we conducted a quantitative analysis of literature data to synthesise outcomes across studies and to identify the factors that most affect the length of pruning wound susceptibility.MethodsWe extracted data on the frequency at which the inoculated wounds showed GTD symptoms or an inoculated pathogen was reisolated following artificial inoculation at the time of pruning or in the following days. A negative exponential model was fit to these data to describe changes in wound susceptibility as a function of time since pruning, in which the rate parameter changed depending on specific factors.Results and DiscussionThe results show that wound susceptibility is high at the time of pruning, and they remain susceptible to invasion by GTD fungi for months after pruning. Infection incidence on wounds was higher for fungi associated with Botryosphaeria dieback than those associated with Eutypa dieback or Esca complex, and wound susceptibility decreased faster for Eutypa dieback than for other GTD agents. Grapevine variety and pruning season also affected the wound susceptibility period. Sauvignon Blanc remains susceptible to GTDs longer than other varieties. We also found that the time of pruning can affect infection dynamics, especially for more susceptible varieties. The results increase our understanding of GTD epidemiology and should help growers control infections.https://www.frontiersin.org/articles/10.3389/fpls.2023.1063932/fullartificial inoculationBotryosphaeria diebackEsca complexEutypa diebackfungal pathogens
spellingShingle Maria Chiara Rosace
Sara Elisabetta Legler
Irene Salotti
Vittorio Rossi
Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature data
Frontiers in Plant Science
artificial inoculation
Botryosphaeria dieback
Esca complex
Eutypa dieback
fungal pathogens
title Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature data
title_full Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature data
title_fullStr Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature data
title_full_unstemmed Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature data
title_short Susceptibility of pruning wounds to grapevine trunk diseases: A quantitative analysis of literature data
title_sort susceptibility of pruning wounds to grapevine trunk diseases a quantitative analysis of literature data
topic artificial inoculation
Botryosphaeria dieback
Esca complex
Eutypa dieback
fungal pathogens
url https://www.frontiersin.org/articles/10.3389/fpls.2023.1063932/full
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AT irenesalotti susceptibilityofpruningwoundstograpevinetrunkdiseasesaquantitativeanalysisofliteraturedata
AT vittoriorossi susceptibilityofpruningwoundstograpevinetrunkdiseasesaquantitativeanalysisofliteraturedata