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17. THESEUS1 modulates cell wall stiffness and abscisic acid production in Arabidopsis thaliana

Author

Bacete, Laura, primary, Schulz, Julia, additional, Engelsdorf, Timo, additional, Bartosova, Zdenka, additional, Vaahtera, Lauri, additional, Yan, Guqi, additional, Gerhold, Joachim Matthias, additional, Tichá, Tereza, additional, Øvstebø, Camilla, additional, Gigli-Bisceglia, Nora, additional, Johannessen-Starheim, Svanhild, additional, Margueritat, Jeremie, additional, Kollist, Hannes, additional, Dehoux, Thomas, additional, McAdam, Scott A. M., additional, and Hamann, Thorsten, additional

Published
2021
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21. Current status of the multinational Arabidopsis community

Author

Parry, Geraint, Provart, Nicholas J., Brady, Siobhan M., Uzilday, Baris, Adams, Keith, Baginsky, Sacha, Bakker, Erica, Batley, Jacqui, Beale, Mike, Beilstein, Mark, Belkhadir, Youssef, Mendel, Gregor, Berardini, Tanya, Bergelson, Joy, Blanco?Herrera, Francisca, Brady, Siobhan, Braun, Hans?Peter, Briggs, Steve, Brownfield, Lynette, Cardarelli, Maura, Castellanos-Uribe, Marcos, Coruzzi, Gloria, Dassanayake, Maheshi, De Jaeger, Geert, Dilkes, Brian, Doherty, Colleen, Ecker, Joe, Edger, Pat, Edwards, David, El Kasmi, Farid, Eriksson, Maria, Exposito?Alonso, Moises, Falter?Braun, Pascal, Fernie, Alisdair, Ferro, Myriam, Fiehn, Oliver, Friesner, Joanna, Greenham, Katie, Guo, Yalong, Hamann, Thorsten, Hancock, Angela, Hauser, Marie?Theres, Heazlewood, Joshua, Ho, Cheng?Hsun, Huala, Eva, Hwang, Inhwan, Iuchi, Satoshi, Jaiswal, Pankaj, Jakobson, Liina, Jiang, Yunhe, Jiao, Yuling, Jones, Alexandra, Kadota, Yasuhiro, Khurana, Jitendra, Kliebenstein, Dan, Knee, Emma, Kobayashi, Masatomo, Koch, Marcus, Krouk, Gabriel, Larson, Tony, Last, Rob, Li, Song, Lurin, Claire, Lysak, Martin, Maere, Steven, Malinowski, Robert, Maumus, Florian, May, Sean, Mayer, Klaus, Mendoza?Cozatl, David, Mendoza?Poudereux, Isabel, Millar, Harvey, Mock, Hans?Peter, Mukhtar, Karolina, Mukhtar, Shahid, Murcha, Monika, Nakagami, Hirofumi, Nakamura, Yasukazu, Nicolov, Luke, Nikolau, Basil, Nowack, Moritz, Nunes?Nesi, Adriano, Palmgren, Michael, Patron, Nicola, Peck, Scott, Pedmale, Ullas, Perrot?Rechenmann, Catherine, Pieruschka, Roland, Pires, J. Chris, Provart, Nicholas, Reiser, Leonore, Rhee, Sue, Rigas, Stamatis, Rolland, Norbert, Romanowski, Andres, Savaldi?Goldstein, Sigal, Schmitz, Robert, Schulze, Waltraud, Seki, Motoaki, Shimizu, Kentaro K., Slotkin, Keith, Small, Ian, Somers, David, Sozzani, Rosangela, Spillane, Charles, Srinivasan, Ramamurthy, Taylor, Nicolas, Tello?Ruiz, Marcela?Karey, Thelen, Jay, Tohge, Takayuki, Town, Christopher, Toyoda, Tetsuro, Walley, Justin, Ware, Doreen, Weckwerth, Wolfram, Whitelegge, Julian, Wienkoop, Stefanie, Wright, Clay, Wrzaczek, Michael, Yamazaki, Misako, Yanovsky, Marcelo, Zhong, Xuehua, Peer, Yves, Wijk, Klaas, Gillhaussen, Philipp, and The Multinational Arabidopsis Steering Committee

Subjects
Arabidopsis thaliana, roadmap, collaboration, Research Network
Abstract

© 2020 The Authors. Plant Direct published by American Society of Plant Biologists and the Society for Experimental Biology and John Wiley & Sons Ltd The multinational Arabidopsis research community is highly collaborative and over the past thirty years these activities have been documented by the Multinational Arabidopsis Steering Committee (MASC). Here, we (a) highlight recent research advances made with the reference plant Arabidopsis thaliana; (b) provide summaries from recent reports submitted by MASC subcommittees, projects and resources associated with MASC and from MASC country representatives; and (c) initiate a call for ideas and foci for the “fourth decadal roadmap,” which will advise and coordinate the global activities of the Arabidopsis research community.

Published
2020

23. Efflux-dependent auxin gradients establish the apical-basal axis of Arabidopsis

Author

Friml, Jiři, Vieten, Anne, Sauer, Michael, Weijers, Dolf, Schwarz, Heinz, Hamann, Thorsten, Offringa, Remko, and Jurgens, Gerd

Subjects
Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Author(s): Jiří Friml (corresponding author) [1, 4]; Anne Vieten [1, 4]; Michael Sauer [1, 4]; Dolf Weijers [1, 2]; Heinz Schwarz [3]; Thorsten Hamann [1, 5]; Remko Offringa [2]; Gerd [...]

Published
2003
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26. The Arabidopsis BODENLOS gene encodes an auxin response protein inhibiting MONOPTEROS-mediated embryo patterning

Author

Hamann, Thorsten, Benkova, Eva, Baurle, Isabel, Kientz, Marika, and Jurgens, Gerd

Subjects
Genetic research -- Analysis, Arabidopsis -- Genetic aspects, Gene expression -- Physiological aspects, Auxin -- Genetic aspects, Proteins -- Physiological aspects, Developmental genetics -- Research, Plant hormones -- Genetic aspects, Biological sciences
Abstract

Research has been conducted on the developmental responses to plant hormone auxin mediated by short-lived inhibitory IAA proteins and ARF transcription factors. Results suggest that hypophysis is established in response to the auxin-dependent signal from the proembryo.

Published
2002

27. AtPIN4 mediates sink-driven auxin gradients and root patterning in Arabidopsis

Author

Friml, Jiri, Benkova, Eva, Blilou, Ikram, Wisniewska, Justyna, Hamann, Thorsten, Ljung, Karin, Woody, Scott, Sandberg, Goran, Scheres, Ben, Jurgens, Gerd, and Palme, Klaus

Subjects
Cell research -- Analysis, Arabidopsis -- Genetic aspects, Auxin -- Physiological aspects, Meristem -- Genetic aspects, Biological sciences
Abstract

Research has been conducted on the putative auxin efflux carriers Arabidopsis PIN4. Results indicate that AtPIN4 generates a sink for auxin the quiescent center of the root meristem essential for auxin distribution and patterning.

Published
2002

32. CRK2 and C-terminal Phosphorylation of NADPH Oxidase RBOHD Regulate Reactive Oxygen Species Production in Arabidopsis

Author

Kimura, Sachie, primary, Hunter, Kerri, additional, Vaahtera, Lauri, additional, Tran, Huy Cuong, additional, Citterico, Matteo, additional, Vaattovaara, Aleksia, additional, Rokka, Anne, additional, Stolze, Sara Christina, additional, Harzen, Anne, additional, Meißner, Lena, additional, Wilkens, Maya Melina Tabea, additional, Hamann, Thorsten, additional, Toyota, Masatsugu, additional, Nakagami, Hirofumi, additional, and Wrzaczek, Michael, additional

Published
2020
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35. THESEUS1 modulates cell wall stiffness and abscisic acid production in Arabidopsis thaliana.

Author

Bacete, Laura, Schulz, Julia, Engelsdorf, Timo, Bartosova, Zdenka, Vaahtera, Lauri, Yan, Guqi, Gerhold, Joachim Matthias, Tichá, Tereza, Øvstebø, Camilla, Gigli-Bisceglia, Nora, Johannessen-Starheim, Svanhild, Margueritat, Jeremie, Kollist, Hannes, Dehoux, Thomas, McAdam, Scott A. M., and Hamann, Thorsten

Subjects
ABSCISIC acid, ARABIDOPSIS thaliana, JASMONIC acid, COMMERCIAL products, PLANT cell walls, CELL anatomy
Abstract

Plant cells can be distinguished from animal cells by their cell walls and high-turgor pressure. Although changes in turgor and the stiffness of cell walls seem coordinated, we know little about the mechanism responsible for coordination. Evidence has accumulated that plants, like yeast, have a dedicated cell wall integrity maintenance mechanism. It monitors the functional integrity of the wall and maintains integrity through adaptive responses induced by cell wall damage arising during growth, development, and interactions with the environment. These adaptive responses include osmosensitive induction of phytohormone production, defense responses, as well as changes in cell wall composition and structure. Here, we investigate how the cell wall integrity maintenance mechanism coordinates changes in cell wall stiffness and turgor in Arabidopsis thaliana. We show that the production of abscisic acid (ABA), the phytohormone-modulating turgor pressure, and responses to drought depend on the presence of a functional cell wall. We find that the cell wall integrity sensor THESEUS1 modulates mechanical properties of walls, turgor loss point, ABA biosynthesis, and ABA-controlled processes. We identify RECEPTOR-LIKE PROTEIN 12 as a component of cell wall integrity maintenance-controlling, cell wall damage-induced jasmonic acid (JA) production. We propose that THE1 is responsible for coordinating changes in turgor pressure and cell wall stiffness. [ABSTRACT FROM AUTHOR]

Published
2022
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36. CRK2 and C-terminal phosphorylation of NADPH oxidase RBOHD regulate ROS production in Arabidopsis

Author

Kimura, Sachie, Hunter, Kerri, Vaahtera, Lauri, Tran, Huy Cuong, Citterico, Matteo, Vaattovaara, Aleksia, Rokka, Anne, Stolze, Sara Christina, Harzen, Anne, Meißner, Lena, Wilkens, Maya Melina Tabea, Hamann, Thorsten, Toyota, Masatsugu, Nakagami, Hirofumi, and Wrzaczek, Michael

Subjects
0106 biological sciences, chemistry.chemical_classification, 0303 health sciences, Reactive oxygen species, NADPH oxidase, biology, Chemistry, fungi, Mutant, biology.organism_classification, 01 natural sciences, Cell biology, 03 medical and health sciences, Arabidopsis, Extracellular, Pseudomonas syringae, biology.protein, Phosphorylation, Protein kinase A, 030304 developmental biology, 010606 plant biology & botany
Abstract

Reactive oxygen species (ROS) are important messengers in eukaryotic organisms and their production is tightly controlled. Active extracellular ROS production by NADPH oxidases in plants is triggered by receptor-like protein kinase (RLK)-dependent signaling networks. Here we show that the cysteine-rich RLK CRK2 kinase activity is required for plant growth and CRK2 exists in a preformed complex with the NADPH oxidase RBOHD in Arabidopsis. Functional CRK2 is required for the full elicitor-induced ROS burst and consequently the crk2 mutant is impaired in defense against the bacterial pathogen Pseudomonas syringae pv. tomato DC3000. Our work demonstrates that CRK2 regulates plant innate immunity. We identified in vitro CRK2-dependent phosphorylation sites in the C-terminal region of RBOHD. Phosphorylation of S703 RBOHD is enhanced upon flg22 treatment and substitution of S703 with alanine reduced ROS production in Arabidopsis. Phylogenetic analysis suggests that phospho-sites in C-terminal region of RBOHD are conserved throughout the plant lineage and between animals and plants. We propose that regulation of NADPH oxidase activity by phosphorylation of the C-terminal region might be an ancient mechanism and that CRK2 is an important element in regulating MAMP-triggered ROS production.One-sentence summaryCRK2 associates with and activates RBOHD to trigger MAMP-induced ROS production and reveals a novel regulatory mechanism for plant NADPH oxidases through phosphorylation of the C-terminus.

Published
2019

37. Additional file 1: of Functional characterization of genes mediating cell wall metabolism and responses to plant cell wall integrity impairment

Author

Engelsdorf, Timo, Kjaer, Lars, Gigli-Bisceglia, Nora, Vaahtera, Lauri, Bauer, Stefan, Miedes, Eva, Wormit, Alexandra, James, Lucinda, Issariya Chairam, Molina, Antonio, and Hamann, Thorsten

Abstract

Table S1. Overview of genes selected for FTIR analysis. Table S2. DNA microarray-based expression analysis of 23 candidate genes in a published dataset (Hamann et al., 2009). Figure S1. Graphic representation of the transcript levels for 23 candidate genes in different cell types and plant organs based on data from the Genevestigator database. Figure S2. Graphic representation of average FTIR spectra of wild-type (Col-0) and all insertion lines screened. (a-c) Difference spectra obtained by subtraction from the Col-0 average spectrum. Black lines indicate 2x SD of Col-0-derived seedling material. Differently coloured lines indicate data derived from the insertion lines analysed. Genes where insertion lines exhibit similar FTIR-phenotypes are arranged together in panels (a-c). (d) Col-0 average spectrum. Figure S3. Characterization of WSR T-DNA insertion lines. Transcript levels of (a) WSR1, (b) WSR2, (c) WSR3 and (d) WSR4 were determined by qRT-PCR in wsrmutant seedlings. Values were normalized to ACT2 and represent means from 3 independent experiments (n.d.: not detectable). Error bars indicate SD, asterisks indicate statistically significant differences to Col-0 according to Student‘s t test (*p

Published
2019
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40. CRK2 and C-terminal phosphorylation of NADPH oxidase RBOHD regulate ROS production in Arabidopsis

Author

Kimura, Sachie, primary, Hunter, Kerri, additional, Vaahtera, Lauri, additional, Tran, Huy Cuong, additional, Citterico, Matteo, additional, Vaattovaara, Aleksia, additional, Rokka, Anne, additional, Stolze, Sara Christina, additional, Harzen, Anne, additional, Meißner, Lena, additional, Wilkens, Maya Melina Tabea, additional, Hamann, Thorsten, additional, Toyota, Masatsugu, additional, Nakagami, Hirofumi, additional, and Wrzaczek, Michael, additional

Published
2019
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42. The plant cell wall integrity maintenance and immune signaling systems cooperate to control stress responses in Arabidopsis thaliana

Author

Engelsdorf, Timo, Gigli-Bisceglia, Nora, Veerabagu, Manikandan, McKenna, Joseph F., Vaahtera, Lauri, Augstein, Frauke, Van der Does, Dieuwertje, Zipfel, Cyril, Hamann, Thorsten, Engelsdorf, Timo, Gigli-Bisceglia, Nora, Veerabagu, Manikandan, McKenna, Joseph F., Vaahtera, Lauri, Augstein, Frauke, Van der Does, Dieuwertje, Zipfel, Cyril, and Hamann, Thorsten

Abstract

Cell walls surround all plant cells, and their composition and structure are modified in a tightly controlled, adaptive manner to meet sometimes opposing functional requirements during growth and development. The plant cell wall integrity (CWI) maintenance mechanism controls these functional modifications, as well as responses to cell wall damage (CWD). We investigated how the CWI system mediates responses to CWD in Arabidopsis thaliana. CWD induced by cell wall-degrading enzymes or an inhibitor of cellulose biosynthesis elicited similar, turgor-sensitive stress responses. Phenotypic clustering with 27 genotypes identified a core group of receptor-like kinases (RLKs) and ion channels required for the activation of CWD responses. A genetic analysis showed that the RLK FEI2 and the plasma membrane-localized mechanosensitive Ca2+ channel MCA1 functioned downstream of the RLK THE1 in CWD perception. In contrast, pattern-triggered immunity (PTI) signaling components, including the receptors for plant elicitor peptides (AtPeps) PEPR1 and PEPR2, repressed responses to CWD. CWD induced the expression of PROPEP1 and PROPEP3, which encode the precursors of AtPep1 and AtPep3, and the release of PROPEP3 into the growth medium. Application of AtPep1 and AtPep3 repressed CWD-induced phytohormone accumulation in a concentration-dependent manner. These results suggest that AtPep-mediated signaling suppresses CWD-induced defense responses controlled by the CWI mechanism. This suppression was alleviated when PTI signaling downstream of PEPR1 and PEPR2 was impaired. Defense responses controlled by the CWI maintenance mechanism might thus compensate to some extent for the loss of PTI signaling elements.

Published
2018
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49. Cell wall integrity modulates Arabidopsis thaliana cell cycle gene expression in a cytokinin- and nitrate reductase-dependent manner

Author

Gigli-Bisceglia, Nora, primary, Engelsdorf, Timo, additional, Strnad, Miroslav, additional, Vaahtera, Lauri, additional, Khan, Ghazanfar Abbas, additional, Jamoune, Amel, additional, Alipanah, Leila, additional, Novák, Ondřej, additional, Persson, Staffan, additional, Hejatko, Jan, additional, and Hamann, Thorsten, additional

Published
2018
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