Teichmann, Thomas

[["dc.bibliographiccitation.firstpage","2789"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","PLANT PHYSIOLOGY"],["dc.bibliographiccitation.lastpage","2804"],["dc.bibliographiccitation.volume","169"],["dc.contributor.author","Ghareeb, Hassan"],["dc.contributor.author","Drechsler, Frank"],["dc.contributor.author","Loefke, Christian"],["dc.contributor.author","Teichmann, Thomas"],["dc.contributor.author","Schirawski, Jan"],["dc.date.accessioned","2018-11-07T09:47:57Z"],["dc.date.available","2018-11-07T09:47:57Z"],["dc.date.issued","2015"],["dc.description.abstract","The biotrophic fungus Sporisorium reilianum causes head smut of maize (Zea mays) after systemic plant colonization. Symptoms include the formation of multiple female inflorescences at subapical nodes of the stalk because of loss of apical dominance. By deletion analysis of cluster 19-1, the largest genomic divergence cluster in S. reilianum, we identified a secreted fungal effector responsible for S. reilianum-induced loss of apical dominance, which we named SUPPRESSOR OF APICAL DOMINANCE1 (SAD1). SAD1 transcript levels were highly up-regulated during biotrophic fungal growth in all infected plant tissues. SAD1-green fluorescent protein fusion proteins expressed by recombinant S. reilianum localized to the extracellular hyphal space. Transgenic Arabidopsis (Arabidopsis thaliana)-expressing green fluorescent protein-SAD1 displayed an increased number of secondary rosette-leaf branches. This suggests that SAD1 manipulates inflorescence branching architecture in maize and Arabidopsis through a conserved pathway. Using a yeast (Saccharomyces cerevisiae) two-hybrid library of S. reilianum-infected maize tissues, we identified potential plant interaction partners that had a predicted function in ubiquitination, signaling, and nuclear processes. Presence of SAD1 led to an increase of the transcript levels of the auxin transporter PIN-FORMED1 in the root and a reduction of the branching regulator TEOSINTE BRANCHED1 in the stalk. This indicates a role of SAD1 in regulation of apical dominance by modulation of branching through increasing transcript levels of the auxin transporter PIN1 and derepression of bud outgrowth."],["dc.identifier.doi","10.1104/pp.15.01347"],["dc.identifier.isi","000368472700032"],["dc.identifier.pmid","26511912"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35208"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Soc Plant Biologists"],["dc.relation.issn","1532-2548"],["dc.relation.issn","0032-0889"],["dc.title","SUPPRESSOR OF APICAL DOMINANCE1 of Sporisorium reilianum Modulates Inflorescence Branching Architecture in Maize and Arabidopsis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3627"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA"],["dc.bibliographiccitation.lastpage","3632"],["dc.bibliographiccitation.volume","110"],["dc.contributor.author","Loefke, Christian"],["dc.contributor.author","Zwiewka, Marta"],["dc.contributor.author","Heilmann, Ingo"],["dc.contributor.author","van Montagu, Marc C. E."],["dc.contributor.author","Teichmann, Thomas"],["dc.contributor.author","Friml, Jiri"],["dc.date.accessioned","2018-11-07T09:28:00Z"],["dc.date.available","2018-11-07T09:28:00Z"],["dc.date.issued","2013"],["dc.description.abstract","Gravitropic bending of plant organs is mediated by an asymmetric signaling of the plant hormone auxin between the upper and lower side of the respective organ. Here, we show that also another plant hormone, gibberellie acid (GA), shows asymmetric action during gravitropic responses. lmmunodetection using an antibody against GA and monitoring GA signaling output by downstream degradation of DELLA proteins revealed an asymmetric GA distribution and response with the maximum at the lower side of gravistimulated roots. Genetic or pharmacological manipulation of GA levels or response affects gravity-mediated auxin redistribution and root bending response. The higher GA levels at the lower side of the root correlate with increased amounts of PIN-FORMED2 (PIN2) auxin transporter at the plasma membrane. The observed increase in PIN2 stability is caused by a specific GA effect on trafficking of PIN proteins to lytic vacuoles that presumably occurs downstream of brefeldin A-sensitive endosomes. Our results suggest that asymmetric auxin distribution instructive for gravity-induced differential growth is consolidated by the asymmetric action of GA that stabilizes the PIN-dependent auxin stream along the lower side of gravistimulated roots."],["dc.identifier.doi","10.1073/pnas.1300107110"],["dc.identifier.isi","000315841900083"],["dc.identifier.pmid","23391733"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30671"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Natl Acad Sciences"],["dc.relation.issn","0027-8424"],["dc.title","Asymmetric gibberellin signaling regulates vacuolar trafficking of PIN auxin transporters during root gravitropism"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4894"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","The Plant Cell"],["dc.bibliographiccitation.lastpage","4911"],["dc.bibliographiccitation.volume","25"],["dc.contributor.author","Ischebeck, Till"],["dc.contributor.author","Werner, Stephanie"],["dc.contributor.author","Krishnamoorthy, Praveen"],["dc.contributor.author","Lerche, Jennifer"],["dc.contributor.author","Meijon, Monica"],["dc.contributor.author","Stenzel, Irene"],["dc.contributor.author","Loefke, Christian"],["dc.contributor.author","Wiessner, Theresa"],["dc.contributor.author","Im, Yang Ju"],["dc.contributor.author","Perera, Imara Y."],["dc.contributor.author","Iven, Tim"],["dc.contributor.author","Feussner, Ivo"],["dc.contributor.author","Busch, Wolfgang"],["dc.contributor.author","Boss, Wendy F."],["dc.contributor.author","Teichmann, Thomas"],["dc.contributor.author","Hause, Bettina"],["dc.contributor.author","Persson, Staffan"],["dc.contributor.author","Heilmann, Ingo"],["dc.date.accessioned","2018-11-07T09:16:43Z"],["dc.date.available","2018-11-07T09:16:43Z"],["dc.date.issued","2013"],["dc.description.abstract","The functions of the minor phospholipid phosphatidylinositol-4,5-bisphosphate [PtdIns(4,5)P-2] during vegetative plant growth remain obscure. Here, we targeted two related phosphatidylinositol 4-phosphate 5-kinases (PI4P 5-kinases) PIP5K1 and PIP5K2, which are expressed ubiquitously in Arabidopsis thaliana. A pip5k1 pip5k2 double mutant with reduced PtdIns(4,5)P-2 levels showed dwarf stature and phenotypes suggesting defects in auxin distribution. The roots of the pip5k1 pip5k2 double mutant had normal auxin levels but reduced auxin transport and altered distribution. Fluorescence-tagged auxin efflux carriers PIN-FORMED (PIN1)-green fluorescent protein (GFP) and PIN2-GFP displayed abnormal, partially apolar distribution. Furthermore, fewer brefeldin A-induced endosomal bodies decorated by PIN1-GFP or PIN2-GFP formed in pip5k1 pip5k2 mutants. Inducible overexpressor lines for PIP5K1 or PIP5K2 also exhibited phenotypes indicating misregulation of auxin-dependent processes, and immunolocalization showed reduced membrane association of PIN1 and PIN2. PIN cycling and polarization require clathrin-mediated endocytosis and labeled clathrin light chain also displayed altered localization patterns in the pip5k1 pip5k2 double mutant, consistent with a role for PtdIns(4,5)P-2 in the regulation of clathrin-mediated endocytosis. Further biochemical tests on subcellular fractions enriched for clathrin-coated vesicles (CCVs) indicated that pip5k1 and pip5k2 mutants have reduced CCV-associated PI4P 5-kinase activity. Together, the data indicate an important role for PtdIns(4,5)P-2 in the control of clathrin dynamics and in auxin distribution in Arabidopsis."],["dc.identifier.doi","10.1105/tpc.113.116582"],["dc.identifier.isi","000330611200014"],["dc.identifier.pmid","24326589"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27998"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Soc Plant Biologists"],["dc.relation.issn","1532-298X"],["dc.relation.issn","1040-4651"],["dc.title","Phosphatidylinositol 4,5-Bisphosphate Influences PIN Polarization by Controlling Clathrin-Mediated Membrane Trafficking in Arabidopsis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","855"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Developmental Cell"],["dc.bibliographiccitation.lastpage","866"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Zhang, Jing"],["dc.contributor.author","Vanneste, Steffen"],["dc.contributor.author","Brewer, Philip B."],["dc.contributor.author","Michniewicz, Marta"],["dc.contributor.author","Grones, Peter"],["dc.contributor.author","Kleine-Vehn, Juergen"],["dc.contributor.author","Loefke, Christian"],["dc.contributor.author","Teichmann, Thomas"],["dc.contributor.author","Bielach, Agnieszka"],["dc.contributor.author","Cannoot, Bernard"],["dc.contributor.author","Hoyerova, Klara"],["dc.contributor.author","Chen, X. U."],["dc.contributor.author","Xue, H. W."],["dc.contributor.author","Benkova, Eva"],["dc.contributor.author","Zazimalova, Eva"],["dc.contributor.author","Friml, Jiri"],["dc.date.accessioned","2018-11-07T08:55:06Z"],["dc.date.available","2018-11-07T08:55:06Z"],["dc.date.issued","2011"],["dc.description.abstract","The phytohormone auxin is an important determinant of plant development. Directional auxin flow within tissues depends on polar localization of PIN auxin transporters. To explore regulation of PIN-mediated auxin transport, we screened for suppressors of PIN1 overexpression (supo) and identified an inositol polyphosphate 1-phosphatase mutant (supo1), with elevated inositol trisphosphate (InsP(3)) and cytosolic Ca2+ levels. Pharmacological and genetic increases in InsP(3) or Ca2+ levels also suppressed the PIN1 gain-of-function phenotypes and caused defects in basal PIN localization, auxin transport and auxin-mediated development. In contrast, the reductions in InsP(3) levels and Ca2+ signaling antagonized the effects of the supo1 mutation and disrupted preferentially apical PIN localization. InsP(3) and Ca2+ are evolutionarily conserved second messengers involved in various cellular functions, particularly stress responses. Our findings implicate them as modifiers of cell polarity and polar auxin transport, and highlight a potential integration point through which Ca2+ signaling-related stimuli could influence auxin-mediated development."],["dc.identifier.doi","10.1016/j.devcel.2011.05.013"],["dc.identifier.isi","000291763500013"],["dc.identifier.pmid","21664582"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22828"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Cell Press"],["dc.relation.issn","1534-5807"],["dc.title","Inositol Trisphosphate-Induced Ca2+ Signaling Modulates Auxin Transport and PIN Polarity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1554"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA"],["dc.bibliographiccitation.lastpage","1559"],["dc.bibliographiccitation.volume","109"],["dc.contributor.author","Grunewald, Wim"],["dc.contributor.author","De Smet, Ive"],["dc.contributor.author","Lewis, Daniel R."],["dc.contributor.author","Loefke, Christian"],["dc.contributor.author","Jansen, Leentje"],["dc.contributor.author","Goeminne, Geert"],["dc.contributor.author","Bossche, Robin Vanden"],["dc.contributor.author","Karimi, Mansour"],["dc.contributor.author","De Rybel, Bert"],["dc.contributor.author","Vanholme, Bartel"],["dc.contributor.author","Teichmann, Thomas"],["dc.contributor.author","Boerjan, Wout"],["dc.contributor.author","van Montagu, Marc C. E."],["dc.contributor.author","Gheysen, Godelieve"],["dc.contributor.author","Muday, Gloria K."],["dc.contributor.author","Friml, Jiri"],["dc.contributor.author","Beeckman, Tom"],["dc.date.accessioned","2018-11-07T09:14:11Z"],["dc.date.available","2018-11-07T09:14:11Z"],["dc.date.issued","2012"],["dc.description.abstract","Gradients of the plant hormone auxin, which depend on its active intercellular transport, are crucial for the maintenance of root meristematic activity. This directional transport is largely orchestrated by a complex interaction of specific influx and efflux carriers that mediate the auxin flow into and out of cells, respectively. Besides these transport proteins, plant-specific polyphenolic compounds known as flavonols have been shown to act as endogenous regulators of auxin transport. However, only limited information is available on how flavonol synthesis is developmentally regulated. Using reduction-of-function and overexpression approaches in parallel, we demonstrate that the WRKY23 transcription factor is needed for proper root growth and development by stimulating the local biosynthesis of flavonols. The expression of WRKY23 itself is controlled by auxin through the AUXIN RESPONSE FACTOR 7 (ARF7) and ARF19 transcriptional response pathway. Our results suggest a model in which WRKY23 is part of a transcriptional feedback loop of auxin on its own transport through local regulation of flavonol biosynthesis."],["dc.identifier.doi","10.1073/pnas.1121134109"],["dc.identifier.isi","000299731400046"],["dc.identifier.pmid","22307611"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27350"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Natl Acad Sciences"],["dc.relation.issn","0027-8424"],["dc.title","Transcription factor WRKY23 assists auxin distribution patterns during Arabidopsis root development through local control on flavonol biosynthesis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]