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Templer SE, Ammon A, Pscheidt D, Ciobotea O, Schuy C, McCollum C, Sonnewald U, Hanemann A, Förster J, Ordon F, von Korff M, Voll LM. Metabolite profiling of barley flag leaves under drought and combined heat and drought stress reveals metabolic QTLs for metabolites associated with antioxidant defense. J Exp Bot 2017; 68:1697-1713. [PMID: 28338908 PMCID: PMC5441916 DOI: 10.1093/jxb/erx038] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Barley (Hordeum vulgare L.) is among the most stress-tolerant crops; however, not much is known about the genetic and environmental control of metabolic adaptation of barley to abiotic stresses. We have subjected a genetically diverse set of 81 barley accessions, consisting of Mediterranean landrace genotypes and German elite breeding lines, to drought and combined heat and drought stress at anthesis. Our aim was to (i) investigate potential differences in morphological, physiological, and metabolic adaptation to the two stress scenarios between the Mediterranean and German barley genotypes and (ii) identify metabolic quantitative trait loci (mQTLs). To this end, we have genotyped the investigated barley lines with an Illumina iSelect 9K array and analyzed a set of 57 metabolites from the primary C and N as well as antioxidant metabolism in flag leaves under control and stress conditions. We found that drought-adapted genotypes attenuate leaf carbon metabolism much more strongly than elite lines during drought stress adaptation. Furthermore, we identified mQTLs for flag leaf γ-tocopherol, glutathione, and succinate content by association genetics that co-localize with genes encoding enzymes of the pathways producing these antioxidant metabolites. Our results provide the molecular basis for breeding barley cultivars with improved abiotic stress tolerance.
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Affiliation(s)
- Sven Eduard Templer
- Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Institute of Resistance Research and Stress Tolerance, Erwin-Baur-Str. 27, D-06484 Quedlinburg, Germany
- Max Planck Institute for Breeding Research, Carl-von-Linné-Weg 10, D-50829 Köln, Germany
| | - Alexandra Ammon
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Division of Biochemistry, Staudtstr. 5, D-91058 Erlangen, Germany
| | - David Pscheidt
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Division of Biochemistry, Staudtstr. 5, D-91058 Erlangen, Germany
| | - Otilia Ciobotea
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Division of Biochemistry, Staudtstr. 5, D-91058 Erlangen, Germany
| | - Christian Schuy
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Division of Biochemistry, Staudtstr. 5, D-91058 Erlangen, Germany
| | - Christopher McCollum
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Division of Biochemistry, Staudtstr. 5, D-91058 Erlangen, Germany
| | - Uwe Sonnewald
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Division of Biochemistry, Staudtstr. 5, D-91058 Erlangen, Germany
| | - Anja Hanemann
- Saatzucht Josef Breun GmbH & Co. KG, Amselweg 1, D-91074 Herzogenaurach, Germany
| | - Jutta Förster
- SAATEN-UNION BIOTEC GmbH, Hovedisser Strasse 92, D-33818 Leopoldshöhe, Germany
| | - Frank Ordon
- Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Institute of Resistance Research and Stress Tolerance, Erwin-Baur-Str. 27, D-06484 Quedlinburg, Germany
| | - Maria von Korff
- Max Planck Institute for Breeding Research, Carl-von-Linné-Weg 10, D-50829 Köln, Germany
- Cluster of Excellence on Plant Sciences, Heinrich-Heine-Universität Düsseldorf, Institute for Plant Genetics, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
| | - Lars Matthias Voll
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Division of Biochemistry, Staudtstr. 5, D-91058 Erlangen, Germany
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Voll LM, Horst RJ, Voitsik AM, Zajic D, Samans B, Pons-Kühnemann J, Doehlemann G, Münch S, Wahl R, Molitor A, Hofmann J, Schmiedl A, Waller F, Deising HB, Kahmann R, Kämper J, Kogel KH, Sonnewald U. Common Motifs in the Response of Cereal Primary Metabolism to Fungal Pathogens are not Based on Similar Transcriptional Reprogramming. Front Plant Sci 2011; 2:39. [PMID: 22645534 PMCID: PMC3355734 DOI: 10.3389/fpls.2011.00039] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Accepted: 08/01/2011] [Indexed: 05/05/2023]
Abstract
During compatible interactions with their host plants, biotrophic plant-pathogens subvert host metabolism to ensure the sustained provision of nutrient assimilates by the colonized host cells. To investigate, whether common motifs can be revealed in the response of primary carbon and nitrogen metabolism toward colonization with biotrophic fungi in cereal leaves, we have conducted a combined metabolome and transcriptome study of three quite divergent pathosystems, the barley powdery mildew fungus (Blumeria graminis f.sp. hordei), the corn smut fungus Ustilago maydis, and the maize anthracnose fungus Colletotrichum graminicola, the latter being a hemibiotroph that only exhibits an initial biotrophic phase during its establishment. Based on the analysis of 42 water-soluble metabolites, we were able to separate early biotrophic from late biotrophic interactions by hierarchical cluster analysis and principal component analysis, irrespective of the plant host. Interestingly, the corresponding transcriptome dataset could not discriminate between these stages of biotrophy, irrespective, of whether transcript data for genes of central metabolism or the entire transcriptome dataset was used. Strong differences in the transcriptional regulation of photosynthesis, glycolysis, the TCA cycle, lipid biosynthesis, and cell wall metabolism were observed between the pathosystems. However, increased contents of Gln, Asn, and glucose as well as diminished contents of PEP and 3-PGA were common to early post-penetration stages of all interactions. On the transcriptional level, genes of the TCA cycle, nucleotide energy metabolism and amino acid biosynthesis exhibited consistent trends among the compared biotrophic interactions, identifying the requirement for metabolic energy and the rearrangement of amino acid pools as common transcriptional motifs during early biotrophy. Both metabolome and transcript data were employed to generate models of leaf primary metabolism during early biotrophy for the three investigated interactions.
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Affiliation(s)
- Lars Matthias Voll
- Division of Biochemistry, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany
| | - Robin Jonathan Horst
- Division of Biochemistry, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany
| | - Anna-Maria Voitsik
- Division of Biochemistry, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany
| | - Doreen Zajic
- Division of Biochemistry, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany
| | - Birgit Samans
- Institute of Biometry and Population Genetics, Justus Liebig UniversityGiessen, Germany
- Research Center for BioSystems, Land Use and Nutrition, Justus Liebig UniversityGiessen, Germany
| | - Jörn Pons-Kühnemann
- Institute of Biometry and Population Genetics, Justus Liebig UniversityGiessen, Germany
- Research Center for BioSystems, Land Use and Nutrition, Justus Liebig UniversityGiessen, Germany
| | | | - Steffen Münch
- Faculty of Agricultural and Nutritional Sciences, Phytopathology and Plant Protection, Martin-Luther-University Halle-WittenbergHalle, Germany
| | - Ramon Wahl
- Department of Genetics, Institute of Applied Biosciences, University of KarlsruheKarlsruhe, Germany
| | - Alexandra Molitor
- Research Center for BioSystems, Land Use and Nutrition, Justus Liebig UniversityGiessen, Germany
- Institute of Phytopathology and Applied Zoology, Justus Liebig UniversityGiessen, Germany
| | - Jörg Hofmann
- Division of Biochemistry, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany
| | - Alfred Schmiedl
- Division of Biochemistry, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany
| | - Frank Waller
- Research Center for BioSystems, Land Use and Nutrition, Justus Liebig UniversityGiessen, Germany
- Institute of Phytopathology and Applied Zoology, Justus Liebig UniversityGiessen, Germany
| | - Holger Bruno Deising
- Faculty of Agricultural and Nutritional Sciences, Phytopathology and Plant Protection, Martin-Luther-University Halle-WittenbergHalle, Germany
| | - Regine Kahmann
- Max Planck Institute for Terrestrial MicrobiologyMarburg, Germany
| | - Jörg Kämper
- Department of Genetics, Institute of Applied Biosciences, University of KarlsruheKarlsruhe, Germany
| | - Karl-Heinz Kogel
- Research Center for BioSystems, Land Use and Nutrition, Justus Liebig UniversityGiessen, Germany
- Institute of Phytopathology and Applied Zoology, Justus Liebig UniversityGiessen, Germany
| | - Uwe Sonnewald
- Division of Biochemistry, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany
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