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Depicting the battle between nectarine and Monilinia laxa:the fruit developmental stage dictates the effectiveness of the host defenses and the pathogen’s infection strategies

引用

Horticulture Research 2020年第1期7卷 619-633页

作者： Marta Balsells-Llauradó Christian J.Silva Josep Usall Núria Vall-llaura Sandra Serrano-Prieto neus teixidó Saskia D.Mesquida-Pesci Antonieta de Cal Barbara Blanco-Ulate Rosario Torres IRTA XaRTA-PostharvestEdifici FruitcentreParc Científic i Tecnològic Agroalimentari de Lleida25003 LleidaCataloniaSpain Department of Plant Sciences University of CaliforniaDavisDavisCA 95616USA Department of Plant Protection INIACtra.de La Coruña Km.728040 MadridCommunity of MadridSpain

Infections by the fungus Monilinia laxa,the main cause of brown rot in Europe,result in considerable losses of stone ***,we present a comprehensive transcriptomic approach to unravel strategies deployed by nectarine fruit and *** during their *** used ***-inoculated immature and mature fruit,which was resistant and susceptible to brown rot,respectively,to perform a dual RNA-Seq *** immature fruit,host responses,pathogen biomass,and pathogen transcriptional activity peaked at 14–24 h post inoculation(hpi),at which point *** appeared to switch its transcriptional response to either quiescence or *** fruit experienced an exponential increase in host and pathogen activity beginning at 6 *** analyses in both host and pathogen highlighted differences in stage-dependent *** example,in immature fruit,*** unsuccessfully employed carbohydrate-active enzymes(CAZymes)for penetration,which the fruit was able to combat with tightly regulated hormone responses and an oxidative burst that challenged the pathogen’s survival at later time *** contrast,in mature fruit,*** was more dependent on proteolytic effectors than CAZymes,and was able to invest in filamentous growth early during the *** analyses of mature fruit infected with *** indicated that,while jasmonic acid activity was likely useful for defense,high ethylene activity may have promoted susceptibility through the induction of ripening ***,we identified *** genes that were highly induced in both quiescent and active infections and may serve as targets for control of brown rot.

关键词： fruit pathogen strategies

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