Janz, Dennis

[["dc.contributor.author","Kaling, Moritz"],["dc.contributor.author","Schmidt, Anna"],["dc.contributor.author","Moritz, Franco"],["dc.contributor.author","Rosenkranz, Maaria"],["dc.contributor.author","Witting, Michael"],["dc.contributor.author","Kasper, Karl"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Schmitt-Kopplin, Philippe"],["dc.contributor.author","Schnitzler, Jörg-Peter"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2018-02-22T11:00:06Z"],["dc.date.available","2018-02-22T11:00:06Z"],["dc.date.issued","2018"],["dc.description.abstract","Symbioses between plants and mycorrhizal fungi are ubiquitous in ecosystems and strengthen the plants' defense against aboveground herbivores. Here, we studied the underlying regulatory networks and biochemical mechanisms in leaves induced by ectomycorrhizae that modify herbivore interactions. Feeding damage and oviposition by the widespread poplar leaf beetle Chrysomela populi were reduced on ectomycorrhizal hybrid poplar Populus x canescens. Integration of transcriptomics, metabolomics and volatile emission patterns via mass difference networks demonstrated changes in nitrogen allocation in leaves of mycorrhizal poplars, down-regulation of phenolic pathways and up-regulation of defensive systems, including protease inhibitors, chitinases and aldoxime biosynthesis. Ectomycorrhizae had a systemic influence on jasmonate-related signalling transcripts. Our results suggest that ectomycorrhizae prime wounding responses and shift resources from constitutive phenol-based to specialized protective compounds. Consequently, symbiosis with ectomycorrhizal fungi enabled poplars to respond to leaf beetle feeding with a more effective arsenal of defense mechanisms than non-mycorrhizal poplars, thus demonstrating the importance of belowground plant-microbe associations in mitigating aboveground biotic stress."],["dc.identifier.doi","10.1104/pp.17.01810"],["dc.identifier.eissn","1532-2548"],["dc.identifier.pmid","29439210"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12418"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.title","Mycorrhiza-Triggered Transcriptomic and Metabolomic Networks Impinge on Herbivore Fitness"],["dc.type","book"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","70"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","New Phytologist"],["dc.bibliographiccitation.lastpage","82"],["dc.bibliographiccitation.volume","194"],["dc.contributor.author","Behnke, Katja"],["dc.contributor.author","Grote, Rüdiger"],["dc.contributor.author","Brüggemann, Nicolas"],["dc.contributor.author","Zimmer, Ina"],["dc.contributor.author","Zhou, Guanwu"],["dc.contributor.author","Elobeid, Mudawi"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Polle, Andrea"],["dc.contributor.author","Schnitzler, Jörg-Peter"],["dc.date.accessioned","2017-09-07T11:49:09Z"],["dc.date.available","2017-09-07T11:49:09Z"],["dc.date.issued","2012"],["dc.description.abstract","Summary - Depending on the atmospheric composition, isoprene emissions from plants can have a severe impact on air quality and regional climate. For the plant itself, isoprene can enhance stress tolerance and also interfere with the attraction of herbivores and parasitoids. - Here, we tested the growth performance and fitness of Populus × canescens in which isoprene emission had been knocked down by RNA interference technology (PcISPS‐RNAi plants) for two growing seasons under outdoor conditions. - Neither the growth nor biomass yield of the PcISPS‐RNAi poplars was impaired, and they were even temporarily enhanced compared with control poplars. Modelling of the annual carbon balances revealed a reduced carbon loss of 2.2% of the total gross primary production by the absence of isoprene emission, and a 6.9% enhanced net growth of PcISPS‐RNAi poplars. However, the knock down in isoprene emission resulted in reduced susceptibility to fungal infection, whereas the attractiveness for herbivores was enhanced. - The present study promises potential for the use of non‐ or low‐isoprene‐emitting poplars for more sustainable and environmentally friendly biomass production, as reducing isoprene emission will presumably have positive effects on regional climate and air quality."],["dc.identifier.doi","10.1111/j.1469-8137.2011.03979.x"],["dc.identifier.gro","3147206"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/4838"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0028-646X"],["dc.title","Isoprene emission-free poplars - a chance to reduce the impact from poplar plantations on the atmosphere"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]