@Article{IPB-2581, author = {Wasternack, C.}, title = {{Sulfation switch in the shade}}, year = {2020}, pages = {186-187}, journal = {Nat Plants}, doi = {10.1038/s41477-020-0620-8}, url = {https://dx.doi.org/10.1038/s41477-020-0620-8}, volume = {6}, abstract = {Plants adjust the balance between growth and defence using photoreceptors and jasmonates. Levels of active jasmonates are reduced in a phytochrome B-dependent manner by upregulation of a 12-hydroxyjasmonate sulfotransferase, leading to increase in shade avoidance and decrease in defence.} } @Article{IPB-2454, author = {Wasternack, C. and Hause, B.}, title = {{The missing link in jasmonic acid biosynthesis}}, year = {2019}, pages = {776-777}, journal = {Nat Plants}, doi = {10.1038/s41477-019-0492-y}, url = {https://dx.doi.org/10.1038/s41477-019-0492-y}, volume = {5}, abstract = {Jasmonic acid biosynthesis starts in chloroplasts and is finalized in peroxisomes. The required export of a crucial intermediate out of the chloroplast is now shown to be mediated by a protein from the outer envelope called JASSY.} } @Article{IPB-2237, author = {Wasternack, C. and Strnad, M.}, title = {{Jasmonates: News on Occurrence, Biosynthesis, Metabolism and Action of an Ancient Group of Signaling Compounds}}, year = {2018}, pages = {2539}, journal = {Int J Mol Sci}, doi = {10.3390/ijms19092539}, url = {https://dx.doi.org/10.3390/ijms19092539}, volume = {19}, abstract = {Jasmonic acid (JA) and its related derivatives are ubiquitously occurring compounds of land plants acting in numerous stress responses and development. Recent studies on evolution of JA and other oxylipins indicated conserved biosynthesis. JA formation is initiated by oxygenation of α-linolenic acid (α-LeA, 18:3) or 16:3 fatty acid of chloroplast membranes leading to 12-oxo-phytodienoic acid (OPDA) as intermediate compound, but in Marchantiapolymorpha and Physcomitrellapatens, OPDA and some of its derivatives are final products active in a conserved signaling pathway. JA formation and its metabolic conversion take place in chloroplasts, peroxisomes and cytosol, respectively. Metabolites of JA are formed in 12 different pathways leading to active, inactive and partially active compounds. The isoleucine conjugate of JA (JA-Ile) is the ligand of the receptor component COI1 in vascular plants, whereas in the bryophyte M. polymorpha COI1 perceives an OPDA derivative indicating its functionally conserved activity. JA-induced gene expressions in the numerous biotic and abiotic stress responses and development are initiated in a well-studied complex regulation by homeostasis of transcription factors functioning as repressors and activators.} } @Article{IPB-1902, author = {Strehmel, N. and Mönchgesang, S. and Herklotz, S. and Krüger, S. and Ziegler, J. and Scheel, D.}, title = {{Piriformospora indica Stimulates Root Metabolism of Arabidopsis thaliana}}, year = {2016}, pages = {1091}, journal = {Int J Mol Sci}, doi = {10.3390/ijms17071091}, url = {https://dx.doi.org/10.3390/ijms17071091}, volume = {17}, abstract = {Piriformospora indica is a root-colonizing fungus, which interacts with a variety of plants including Arabidopsis thaliana. This interaction has been considered as mutualistic leading to growth promotion of the host. So far, only indolic glucosinolates and phytohormones have been identified as key players. In a comprehensive non-targeted metabolite profiling study, we analyzed Arabidopsis thaliana’s roots, root exudates, and leaves of inoculated and non-inoculated plants by ultra performance liquid chromatography/electrospray ionization quadrupole-time-of-flight mass spectrometry (UPLC/(ESI)-QTOFMS) and gas chromatography/electron ionization quadrupole mass spectrometry (GC/EI-QMS), and identified further biomarkers. Among them, the concentration of nucleosides, dipeptides, oligolignols, and glucosinolate degradation products was affected in the exudates. In the root profiles, nearly all metabolite levels increased upon co-cultivation, like carbohydrates, organic acids, amino acids, glucosinolates, oligolignols, and flavonoids. In the leaf profiles, we detected by far less significant changes. We only observed an increased concentration of organic acids, carbohydrates, ascorbate, glucosinolates and hydroxycinnamic acids, and a decreased concentration of nitrogen-rich amino acids in inoculated plants. These findings contribute to the understanding of symbiotic interactions between plant roots and fungi of the order of Sebacinales and are a valid source for follow-up mechanistic studies, because these symbioses are particular and clearly different from interactions of roots with mycorrhizal fungi or dark septate endophytes } } @Article{IPB-1018, author = {Schilling, S. and Wasternack, C. and Demuth, H.U.}, title = {{Glutaminyl cyclases from animals and plants: a case of functionally convergent protein evolution}}, year = {2008}, pages = {983-991}, journal = {Biol. Chem }, doi = {10.1515/BC.2008.111}, volume = {389}, } @Article{IPB-831, author = {Schilling, S. and Stenzel, I. and von Bohlen, A. and Wermann, M. and Schulz, K. and Demuth, H.-U. and Wasternack, C.}, title = {{Isolation and characterization of the glutaminyl cyclases from Solanum tuberosum and Arabidopsis thaliana: implications for physiological functions}}, year = {2007}, pages = {145-153}, journal = {Biol. Chem}, doi = {10.1515/BC.2007.016}, volume = {388}, }