Janz, Dennis

[["dc.bibliographiccitation.firstpage","33"],["dc.bibliographiccitation.lastpage","41"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Polle, Andrea"],["dc.contributor.editor","Kharazipour, Alireza"],["dc.contributor.editor","Schöpper, C."],["dc.contributor.editor","Müller, C."],["dc.contributor.editor","Euring, Markus"],["dc.date.accessioned","2017-09-07T11:49:55Z"],["dc.date.available","2017-09-07T11:49:55Z"],["dc.date.issued","2009"],["dc.identifier.gro","3149758"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6455"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.publisher","Universität Göttingen"],["dc.publisher.place","Göttingen"],["dc.relation.isbn","978-3-940344-72-4"],["dc.relation.ispartof","Review of Forests, Wood Products and Wood Biotechnology of Iran and Germany- Part III"],["dc.title","Microarrays - a tool for analyzing salt tolerance in trees"],["dc.type","book_chapter"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1697"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Plant Physiology"],["dc.bibliographiccitation.lastpage","1709"],["dc.bibliographiccitation.volume","154"],["dc.contributor.author","Brinker, Monika"],["dc.contributor.author","Brosche, Mikael"],["dc.contributor.author","Vinocur, Basia"],["dc.contributor.author","Abo-Ogiala, Atef"],["dc.contributor.author","Fayyaz, Payam"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Ottow, Eric A."],["dc.contributor.author","Cullmann, Andreas D."],["dc.contributor.author","Saborowski, Joachim"],["dc.contributor.author","Kangasjärvi, Jaakko"],["dc.contributor.author","Altman, Arie"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2017-09-07T11:49:11Z"],["dc.date.available","2017-09-07T11:49:11Z"],["dc.date.issued","2010"],["dc.description.abstract","To investigate early salt acclimation mechanisms in a salt-tolerant poplar species (Populus euphratica), the kinetics of molecular, metabolic, and physiological changes during a 24-h salt exposure were measured. Three distinct phases of salt stress were identified by analyses of the osmotic pressure and the shoot water potential: dehydration, salt accumulation, and osmotic restoration associated with ionic stress. The duration and intensity of these phases differed between leaves and roots. Transcriptome analysis using P. euphratica-specific microarrays revealed clusters of coexpressed genes in these phases, with only 3% overlapping salt-responsive genes in leaves and roots. Acclimation of cellular metabolism to high salt concentrations involved remodeling of amino acid and protein biosynthesis and increased expression of molecular chaperones (dehydrins, osmotin). Leaves suffered initially from dehydration, which resulted in changes in transcript levels of mitochondrial and photosynthetic genes, indicating adjustment of energy metabolism. Initially, decreases in stress-related genes were found, whereas increases occurred only when leaves had restored the osmotic balance by salt accumulation. Comparative in silico analysis of the poplar stress regulon with Arabidopsis (Arabidopsis thaliana) orthologs was used as a strategy to reduce the number of candidate genes for functional analysis. Analysis of Arabidopsis knockout lines identified a lipocalin-like gene (AtTIL) and a gene encoding a protein with previously unknown functions (AtSIS) to play roles in salt tolerance. In conclusion, by dissecting the stress transcriptome of tolerant species, novel genes important for salt endurance can be identified."],["dc.identifier.doi","10.1104/pp.110.164152"],["dc.identifier.gro","3147214"],["dc.identifier.pmid","20959419"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7447"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/4847"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0032-0889"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Linking the Salt Transcriptome with Physiological Responses of a Salt-Resistant Populus Species as a Strategy to Identify Genes Important for Stress Acclimation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","199"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Agronomy"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Ryadin, Aisjah R."],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Schneider, Dominik"],["dc.contributor.author","Tjoa, Aiyen"],["dc.contributor.author","Irawan, Bambang"],["dc.contributor.author","Daniel, Rolf"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2022-02-23T09:56:05Z"],["dc.date.available","2022-02-23T09:56:05Z"],["dc.date.issued","2022"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2022"],["dc.identifier.doi","10.3390/agronomy12010199"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/100229"],["dc.language.iso","en"],["dc.relation","SFB 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)"],["dc.relation","SFB 990 | B | B02: Impact of rainforest transformation on phylogenetic and functional diversity of soil prokaryotic communities in Sumatra (Indonesia)"],["dc.relation","SFB 990 | B | B07: Functional diversity of mycorrhizal fungi along a tropical land-use gradient"],["dc.relation.issn","2073-4395"],["dc.rights","CC BY 4.0"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Early Effects of Fertilizer and Herbicide Reduction on Root-Associated Biota in Oil Palm Plantations"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","tpj.15802"],["dc.bibliographiccitation.journal","The Plant Journal"],["dc.contributor.author","Kasper, Karl"],["dc.contributor.author","Abreu, Ilka N."],["dc.contributor.author","Feussner, Kirstin"],["dc.contributor.author","Zienkiewicz, Krzysztof"],["dc.contributor.author","Herrfurth, Cornelia"],["dc.contributor.author","Ischebeck, Till"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Majcherczyk, Andrzej"],["dc.contributor.author","Schmitt, Kerstin"],["dc.contributor.author","Valerius, Oliver"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2022-06-01T09:39:32Z"],["dc.date.available","2022-06-01T09:39:32Z"],["dc.date.issued","2022"],["dc.identifier.doi","10.1111/tpj.15802"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108504"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-572"],["dc.relation.eissn","1365-313X"],["dc.relation.issn","0960-7412"],["dc.title","Multi‐omics analysis of xylem sap uncovers dynamic modulation of poplar defenses by ammonium and nitrate"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","plx067"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","AoB PLANTS"],["dc.bibliographiccitation.lastpage","18"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Paul, Shanty"],["dc.contributor.author","Wildhagen, Henning"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2018-02-22T11:03:06Z"],["dc.date.available","2018-02-22T11:03:06Z"],["dc.date.issued","2018"],["dc.description.abstract","Climate change with increasing periods of drought is expected to reduce the yield of biomass crops such as poplars. To combat yield loss, it is important to better understand the molecular mechanisms that control growth under drought. Here, the goal was to resolve the drought-induced changes of active cytokinins, a main growth hormone in plants, at the tissue level in different cell types and organs of poplars (Populus×canescens) in comparison with growth, biomass, leaf shedding, photosynthesis and water potential. Since cytokinin response is mediated by type-A response regulators,ARR5::GUSreporter lines were used to map cytokinin activity histochemically. The expression ofPtaRR3andPtaRR10was examined in different stem sections. Young leaves showed strong cytokinin activity in the veins and low staining under drought stress, accompanied by diminished leaf expansion. Leaf scars, at positions where drought-shedding occurred, showed strong reduction of cytokinin activity. The pith in the differentiation zone of stem showed high cytokinin activity with distinct, very active parenchymatic cells and enhanced activity close to primary xylem. This pattern was maintained under drought but the cytokinin activity was reduced. Mature phloem parenchymatic cells showed high cytokinin activity and mature wood showed no detectable cytokinin activity. Cytokinin activity in the cambium was apparent as a clear ring, which faded under drought. Xylem-localized cytokinin activities were also mirrored by the relative expression ofPtaRR3, whereasPtaRR10showed developmental but no drought-induced changes. Primary meristems exhibited high cytokinin activity regardless of drought stress, supporting a function of this phytohormone in meristem maintenance, whereas declining cytokinin activities in apical pith tissues and cambium of drought-stressed poplars linked cytokinin in these cell types with the control of primary and secondary growth processes. Changes in cytokinin activity further imply a role in drought avoidance mechanisms of poplars, especially in the reduction of leaf area."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2017"],["dc.identifier.doi","10.1093/aobpla/plx067"],["dc.identifier.pmid","29354257"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15020"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12421"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.doi","10.1093/aobpla/plx067"],["dc.rights.access","openAccess"],["dc.subject.ddc","570"],["dc.title","Drought effects on the tissue- and cell-specific cytokinin activity in poplar"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","129"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","New Phytologist"],["dc.bibliographiccitation.lastpage","141"],["dc.bibliographiccitation.volume","194"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Lautner, Silke"],["dc.contributor.author","Wildhagen, Henning"],["dc.contributor.author","Behnke, Katja"],["dc.contributor.author","Schnitzler, Jörg-Peter"],["dc.contributor.author","Rennenberg, Heinz"],["dc.contributor.author","Fromm, Jörg"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2017-09-07T11:49:19Z"],["dc.date.available","2017-09-07T11:49:19Z"],["dc.date.issued","2012"],["dc.description.abstract","Summary - Salinity causes osmotic stress and limits biomass production of plants. The goal of this study was to investigate mechanisms underlying hydraulic adaptation to salinity. - Anatomical, ecophysiological and transcriptional responses to salinity were investigated in the xylem of a salt‐sensitive (Populus × canescens) and a salt‐tolerant species (Populus euphratica). - Moderate salt stress, which suppressed but did not abolish photosynthesis and radial growth in P. × canescens, resulted in hydraulic adaptation by increased vessel frequencies and decreased vessel lumina. Transcript abundances of a suite of genes (FLA, COB‐like, BAM, XET, etc.) previously shown to be activated during tension wood formation, were collectively suppressed in developing xylem, whereas those for stress and defense‐related genes increased. A subset of cell wall‐related genes was also suppressed in salt‐exposed P. euphratica, although this species largely excluded sodium and showed no anatomical alterations. Salt exposure influenced cell wall composition involving increases in the lignin : carbohydrate ratio in both species. - In conclusion, hydraulic stress adaptation involves cell wall modifications reciprocal to tension wood formation that result in the formation of a novel type of reaction wood in upright stems named ‘pressure wood’. Our data suggest that transcriptional co‐regulation of a core set of genes determines reaction wood composition."],["dc.identifier.doi","10.1111/j.1469-8137.2011.03975.x"],["dc.identifier.gro","3147274"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7404"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/4894"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0028-646X"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Salt stress induces the formation of a novel type of ‘pressure wood’ in two Populus species"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","submitted_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","9899"],["dc.bibliographiccitation.issue","18"],["dc.bibliographiccitation.journal","International Journal of Molecular Sciences"],["dc.bibliographiccitation.volume","22"],["dc.contributor.affiliation","Yu, Dade; 1Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; lschen@bjfu.edu.cn"],["dc.contributor.affiliation","Janz, Dennis; 2Forest Botany and Tree Physiology, Büsgen-Institute, University of Goettingen, 37077 Göttingen, Germany; djanz@gwdg.de"],["dc.contributor.affiliation","Zienkiewicz, Krzysztof; 4Department of Plant Biochemistry, Albrecht-Von-Haller Institute, University of Goettingen, 37077 Göttingen, Germany; krzysztof.zienkiewicz@biologie.uni-goettingen.de (K.Z.); cherrfu@uni-goettingen.de (C.H.); ifeussn@uni-goettingen.de (I.F.)"],["dc.contributor.affiliation","Herrfurth, Cornelia; 4Department of Plant Biochemistry, Albrecht-Von-Haller Institute, University of Goettingen, 37077 Göttingen, Germany; krzysztof.zienkiewicz@biologie.uni-goettingen.de (K.Z.); cherrfu@uni-goettingen.de (C.H.); ifeussn@uni-goettingen.de (I.F.)"],["dc.contributor.affiliation","Feussner, Ivo; 4Department of Plant Biochemistry, Albrecht-Von-Haller Institute, University of Goettingen, 37077 Göttingen, Germany; krzysztof.zienkiewicz@biologie.uni-goettingen.de (K.Z.); cherrfu@uni-goettingen.de (C.H.); ifeussn@uni-goettingen.de (I.F.)"],["dc.contributor.affiliation","Chen, Shaoliang; 1Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; lschen@bjfu.edu.cn"],["dc.contributor.affiliation","Polle, Andrea; 1Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; lschen@bjfu.edu.cn"],["dc.contributor.author","Yu, Dade"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Zienkiewicz, Krzysztof"],["dc.contributor.author","Herrfurth, Cornelia"],["dc.contributor.author","Feussner, Ivo"],["dc.contributor.author","Chen, Shaoliang"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2021-10-01T09:58:40Z"],["dc.date.available","2021-10-01T09:58:40Z"],["dc.date.issued","2021"],["dc.date.updated","2022-09-03T10:10:13Z"],["dc.description.abstract","Drought is a severe environmental stress that exerts negative effects on plant growth. In trees, drought leads to reduced secondary growth and altered wood anatomy. The mechanisms underlying wood stress adaptation are not well understood. Here, we investigated the physiological, anatomical, hormonal, and transcriptional responses of poplar to strong drought. Drought-stressed xylem was characterized by higher vessel frequencies, smaller vessel lumina, and thicker secondary fiber cell walls. These changes were accompanied by strong increases in abscisic acid (ABA) and antagonistic changes in salicylic acid in wood. Transcriptional evidence supported ABA biosynthesis and signaling in wood. Since ABA signaling activates the fiber-thickening factor NST1, we expected upregulation of the secondary cell wall (SCW) cascade under stress. By contrast, transcription factors and biosynthesis genes for SCW formation were down-regulated, whereas a small set of cellulose synthase-like genes and a huge array of genes involved in cell wall modification were up-regulated in drought-stressed wood. Therefore, we suggest that ABA signaling monitors normal SCW biosynthesis and that drought causes a switch from normal to “stress wood” formation recruiting a dedicated set of genes for cell wall biosynthesis and remodeling. This proposition implies that drought-induced changes in cell wall properties underlie regulatory mechanisms distinct from those of normal wood."],["dc.description.abstract","Drought is a severe environmental stress that exerts negative effects on plant growth. In trees, drought leads to reduced secondary growth and altered wood anatomy. The mechanisms underlying wood stress adaptation are not well understood. Here, we investigated the physiological, anatomical, hormonal, and transcriptional responses of poplar to strong drought. Drought-stressed xylem was characterized by higher vessel frequencies, smaller vessel lumina, and thicker secondary fiber cell walls. These changes were accompanied by strong increases in abscisic acid (ABA) and antagonistic changes in salicylic acid in wood. Transcriptional evidence supported ABA biosynthesis and signaling in wood. Since ABA signaling activates the fiber-thickening factor NST1, we expected upregulation of the secondary cell wall (SCW) cascade under stress. By contrast, transcription factors and biosynthesis genes for SCW formation were down-regulated, whereas a small set of cellulose synthase-like genes and a huge array of genes involved in cell wall modification were up-regulated in drought-stressed wood. Therefore, we suggest that ABA signaling monitors normal SCW biosynthesis and that drought causes a switch from normal to “stress wood” formation recruiting a dedicated set of genes for cell wall biosynthesis and remodeling. This proposition implies that drought-induced changes in cell wall properties underlie regulatory mechanisms distinct from those of normal wood."],["dc.identifier.doi","10.3390/ijms22189899"],["dc.identifier.pii","ijms22189899"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/90115"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-469"],["dc.relation.eissn","1422-0067"],["dc.rights","CC BY 4.0"],["dc.title","Wood Formation under Severe Drought Invokes Adjustment of the Hormonal and Transcriptional Landscape in Poplar"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","728"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","New Phytologist"],["dc.bibliographiccitation.lastpage","740"],["dc.bibliographiccitation.volume","228"],["dc.contributor.author","Vishwanathan, Kishore"],["dc.contributor.author","Zienkiewicz, Krzysztof"],["dc.contributor.author","Liu, Yang"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Feussner, Ivo"],["dc.contributor.author","Polle, Andrea"],["dc.contributor.author","Haney, Cara H."],["dc.date.accessioned","2021-04-14T08:24:05Z"],["dc.date.available","2021-04-14T08:24:05Z"],["dc.date.issued","2020"],["dc.description.abstract","Summary Below‐ground microbes can induce systemic resistance against foliar pests and pathogens on diverse plant hosts. The prevalence of induced systemic resistance (ISR) among plant‐microbe‐pest systems raises the question of host specificity in microbial induction of ISR. To test whether ISR is limited by plant host range, we tested the ISR‐inducing ectomycorrhizal fungus Laccaria bicolor on the nonmycorrhizal plant Arabidopsis thaliana. We used the cabbage looper Trichoplusia ni and bacterial pathogen Pseudomonas syringae pv. tomato DC3000 (Pto) as readouts for ISR on Arabidopsis. We found that root inoculation with L. bicolor triggered ISR against T. ni and induced systemic susceptibility (ISS) against the bacterial pathogen Pto. We found that L. bicolor‐triggered ISR against T. ni was dependent on jasmonic acid signaling and salicylic acid biosynthesis and signaling. Heat‐killed L. bicolor and chitin were sufficient to trigger ISR against T. ni and ISS against Pto. The chitin receptor CERK1 was necessary for L. bicolor‐mediated effects on systemic immunity. Collectively our findings suggest that some ISR responses might not require intimate symbiotic association, but rather might be the result of root perception of conserved microbial signals."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659"],["dc.description.sponsorship","Natural Sciences and Engineering Research Council of Canada http://dx.doi.org/10.13039/501100000038"],["dc.identifier.doi","10.1111/nph.16715"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81155"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1469-8137"],["dc.relation.issn","0028-646X"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited."],["dc.title","Ectomycorrhizal fungi induce systemic resistance against insects on a nonmycorrhizal plant in a CERK1‐dependent manner"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1075"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Forests"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Kuchma, Oleksandra"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Leinemann, Ludger"],["dc.contributor.author","Polle, Andrea"],["dc.contributor.author","Krutovsky, Konstantin"],["dc.contributor.author","Gailing, Oliver"],["dc.creator.author","Oleksandra Kuchma"],["dc.creator.author","Dennis Janz"],["dc.creator.author","Ludger Leinemann"],["dc.creator.author","Andrea Polle"],["dc.creator.author","Konstantin Krutovsky"],["dc.creator.author","Oliver Gailing"],["dc.date.accessioned","2021-04-14T08:31:08Z"],["dc.date.accessioned","2022-08-18T12:04:20Z"],["dc.date.available","2021-04-14T08:31:08Z"],["dc.date.available","2022-08-18T12:04:20Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.3390/f11101075"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83494"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112846"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1999-4907"],["dc.title","Hybrid and Environmental Effects on Gene Expression in Poplar Clones in Pure and Mixed with Black Locust Stands"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","150"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","BMC Plant Biology"],["dc.bibliographiccitation.lastpage","17"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Behnke, Katja"],["dc.contributor.author","Schnitzler, Jörg-Peter"],["dc.contributor.author","Kanawati, Basem"],["dc.contributor.author","Schmitt-Kopplin, Philippe"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2017-09-07T11:50:39Z"],["dc.date.available","2017-09-07T11:50:39Z"],["dc.date.issued","2010"],["dc.description.abstract","Background Populus euphratica is a salt tolerant and Populus × canescens a salt sensitive poplar species. Because of low transcriptional responsiveness of P. euphratica to salinity we hypothesized that this species exhibits an innate activation of stress protective genes compared with salt sensitive poplars. To test this hypothesis, the transcriptome and metabolome of mature unstressed leaves of P. euphratica and P. × canescens were compared by whole genome microarray analyses and FT-ICR-MS metabolite profiling. Results Direct cross-species comparison of the transcriptomes of the two poplar species from phylogenetically different sections required filtering of the data set. Genes assigned to the GO slim categories 'mitochondria', 'cell wall', 'transport', 'energy metabolism' and 'secondary metabolism' were significantly enriched, whereas genes in the categories 'nucleus', 'RNA or DNA binding', 'kinase activity' and 'transcription factor activity' were significantly depleted in P. euphratica compared with P. × canescens. Evidence for a general activation of stress relevant genes in P. euphratica was not detected. Pathway analyses of metabolome and transcriptome data indicated stronger accumulation of primary sugars, activation of pathways for sugar alcohol production, and faster consumption of secondary metabolites in P. euphratica compared to P. × canescens. Physiological measurements showing higher respiration, higher tannin and soluble phenolic contents as well as enrichment of glucose and fructose in P. euphratica compared to P. × canescens corroborated the results of pathway analyses. Conclusion P. euphratica does not rely on general over-expression of stress pathways to tolerate salt stress. Instead, it exhibits permanent activation of control mechanisms for osmotic adjustment (sugar and sugar alcohols), ion compartmentalization (sodium, potassium and other metabolite transporters) and detoxification of reactive oxygen species (phenolic compounds). The evolutionary adaptation of P. euphratica to saline environments is apparently linked with higher energy requirement of cellular metabolism and a loss of transcriptional regulation."],["dc.identifier.doi","10.1186/1471-2229-10-150"],["dc.identifier.gro","3147722"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5667"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5120"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","1471-2229"],["dc.rights","CC BY 2.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.0"],["dc.title","Pathway analysis of the transcriptome and metabolome of salt sensitive and tolerant poplar species reveals evolutionary adaption of stress tolerance mechanisms"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]