Plant Plasticity Lab

Gaojie Li, Xuyao Zhao, Jingjing Yang, Shiqi Hu, Jathish Ponnu, Seisuke Kimura, Inhwan Hwang, Keiko U. Torii, Hongwei Hou (2024).  The water wisteria genome reveals environmental adaptation and heterophylly regulation in amphibious plants. Plant, Cell & Environment

Vasiliki Zacharaki*, Jathish Ponnu*, Nathalie Crepin, Tobias Langenecker, Jörg Hagmann, Noemi Skorzinskia, Magdalena Musialak-Lange, Vanessa Wahl, Filip Rolland, Markus Schmid (2022). SnRK1α1 impaired function restores developmental defects in the Arabidopsis trehalose 6-phosphate synthase1 (tps1) mutant. New Phytologist *Equal contribution

Jathish Ponnu, Armin Schlereth, Vasiliki Zacharaki, Magdalena A. Działo, Christin Abel, Regina Feil, Markus Schmid, Vanessa Wahl (2020). The Trehalose 6-Phosphate Pathway Regulates Vegetative Phase Change in Arabidopsis thaliana. The Plant Journal

Jathish Ponnu, Tabea Riedel, Eva Penner, Andrea Schrader, and Ute Hoecker (2019). Cryptochrome 2 competes with COP1 substrates to repress COP1 ubiquitin ligase activity during Arabidopsis photomorphogenesis. Proceedings of National Academy of Sciences USA

Vanessa Wahl, Jathish Ponnu, Armin Schlereth, Stéphanie Arrivault, Tobias Langenecker, Annika Franke, Regina Feil, John E. Lunn, Mark Stitt, Markus Schmid (2013). Regulation of Flowering by Trehalose-6-Phosphate Signaling in Arabidopsis thaliana. Science

Qianwei Liu and Jathish Ponnu (2026) Deciphering Protein Interaction Dynamics Using the Yeast Three-Hybrid System. Methods Mol Biol.

Qianwei Liu, Rainer Kembügler, Francesc Felipe, Jathish Ponnu (2025). A quantitative split firefly luciferase complementation assay (SplitLUC) for in planta protein-protein interactions. Protoplasma

Ruiyan Tao, Ira Trivedi, Laura Trimborn, Jathish Ponnu, Blanka Violetta Tóth, and Ute Hoecker (2025). TCP3 is a substrate of the COP1/SPA ubiquitin ligase to regulate anthocyanin accumulation and flowering time in Arabidopsis. Proceedings of National Academy of Sciences USA

Laura Trimborn, Franziska Kuttig, Jathish Ponnu, Pengxin Yu, Kris R. Korsching, Patrick Lederer, Uriel Urquiza-García, Matias D. Zurbriggen, Ute Hoecker (2025) Cryptochrome 1 promotes photomorphogenesis in Arabidopsis by displacing substrates from the COP1 ubiquitin ligase. The Plant Journal

Vladislav Gramma, Justyna Jadwiga Olas, Vasiliki Zacharaki, Jathish Ponnu, Magdalena Musialak-Lange, Vanessa Wahl (2025). Carbon and nitrogen signaling regulate FLOWERING LOCUS C and impact flowering time in Arabidopsis. Plant Physiology

Gaojie Li, Xuyao Zhao, Jingjing Yang, Shiqi Hu, Jathish Ponnu, Seisuke Kimura, Inhwan Hwang, Keiko U. Torii, Hongwei Hou (2024).  The water wisteria genome reveals environmental adaptation and heterophylly regulation in amphibious plants. Plant, Cell & Environment

Gaojie Li, Xuyao Zhao, Jingjing Yang, Shiqi Hu, Jathish Ponnu, Seisuke Kimura, Inhwan Hwang, Keiko U. Torii, Hongwei Hou (2024).  Outside Front Cover Image. Plant, Cell & Environment

Vladislav Gramma, Justyna Jadwiga Olas1, Vasiliki Zacharaki, Jathish Ponnu, Urszula Marta Luzarowska, Magdalena Musialak-Lange, and Vanessa Wahl (2024). FLOWERING LOCUS C integrates carbon and nitrogen signaling for the proper timing of flowering in Arabidopsis. Plant Physiology

Vladislav Gramma, Justyna Jadwiga Olas1, Vasiliki Zacharaki, Jathish Ponnu, Urszula Marta Luzarowska, Magdalena Musialak-Lange, and Vanessa Wahl (2024). FLOWERING LOCUS C integrates carbon and nitrogen signaling for the proper timing of flowering in Arabidopsis. BioRxiv

Eva Maleckova, Jathish Ponnu (2023). Sugar cravings during stress: Abscisic acid-mediated starch degradation promotes plant drought tolerance. Plant Physiology

Gaojie Li, Xuyao Zhao, Jingjing Yang, Yimeng Chen, Yan Chen, Yixian Li, Zuoliang Sun, Manli Xia, Xiaoyu Wang, Xiaozhe Li, Kangsheng Luo, Shiqi Hu, Jathish Ponnu, Seisuke Kimura, Inhwan Hwang, Keiko U Torii, Hongwei Hou (2022). The chromosome-level genome of Water-Wisteria establishes an ecological plant model and provides insight into the molecular mechanisms underlying heterophylly in amphibious plants. BioRxiv

Jathish Ponnu (2022). What plants do in the shadows: Gene transcription precedes histone methylation during shade responses. Plant Physiology

Jathish Ponnu (2022). B-BOXing against UV rays: The BBX11-HY5 feedback loop regulates plant ultraviolet B tolerance. Plant Physiology

Vasiliki Zacharaki*, Jathish Ponnu*, Nathalie Crepin, Tobias Langenecker, Jörg Hagmann, Noemi Skorzinskia, Magdalena Musialak-Lange, Vanessa Wahl, Filip Rolland, Markus Schmid (2022). SnRK1α1 impaired function restores developmental defects in the Arabidopsis trehalose 6-phosphate synthase1 (tps1) mutant. New Phytologist *Equal contribution

Jathish Ponnu (2022). Repressing a repressor:  Arabidopsis  COP1/SPA  promotes seed germination by targeting the DELLA protein RGL2. Plant Physiology

Laura Trimborn, Ute Hoecker, Jathish Ponnu (2022). A simple quantitative assay for measuring β-galactosidase activity using X-gal in yeast-based interaction analyses. Current Protocols in Molecular Biology

Jathish Ponnu and Ute Hoecker (2022). Signaling mechanisms by Arabidopsis cryptochromes. Frontiers in Plant Sciences

Jathish Ponnu (2022). Dephosphorylate to close: type 2C protein phosphatases regulate stomatal aperture. Plant Physiology

Jathish Ponnu (2022). Breaking bud: A gentian FLOWERING LOCUS T controls budbreak and dormancy. Plant Physiology

Philipp Schwenk, David J. Sheerin, Jathish Ponnu, Anne-Marie Staudt, Klara L. Lesch, Elisabeth Lichtenberg, Katalin F. Medzihradszky, Ute Hoecker, Eva Klement, András Viczián, Andreas Hiltbrunner (2021). Uncovering a novel function of the CCR4-NOT complex in phytochrome A-mediated light signalling in plants. eLife

Jathish Ponnu (2021). Shouldering the stress: Ubiquitin-mediated degradation of a B-box protein regulates drought responses in Apple. Plant Physiology

Jathish Ponnu and Ute Hoecker (2021). Illuminating the COP1/SPA ubiquitin ligase: Fresh insights into its structure and functions during plant photomorphogenesis. Frontiers in Plant Sciences

Jathish Ponnu (2021). Surviving hypoxia: aquaporin-like protein NIP2;1 mediates lactic acid transport. Plant Physiology

Jathish Ponnu (2021). Tuning the transitions: A thioredoxin regulates STATE TRANSITION 7 kinase during photoacclimation. Plant Physiology

Jathish Ponnu, Armin Schlereth, Vasiliki Zacharaki, Magdalena A. Działo, Christin Abel, Regina Feil, Markus Schmid, Vanessa Wahl (2020). The Trehalose 6-Phosphate Pathway Regulates Vegetative Phase Change in Arabidopsis thaliana. The Plant Journal

Jathish Ponnu (2020). Molecular mechanisms suppressing COP1/SPA E3 ubiquitin ligase activity in blue light. Physiologia Plantarum

Natalia Ordoñez-Herrera, Laura Trimborn, Melanie Menje, Monique Henschel, Lennart Robers, David Kaufholdt, Robert Hänsch, Jessika Adrian, Jathish Ponnu, Ute Hoecker (2018). The Transcription Factor COL12 Is a Substrate of the COP1/SPA E3 Ligase and Regulates Flowering Time and Plant Architecture. Plant Physiology

Xu Holtkotte, Jathish Ponnu, Margaret Ahmad, Ute Hoecker (2017). The blue light-induced interaction of cryptochrome 1 with COP1 requires SPA proteins during Arabidopsis light signalling. PLoS Genetics

Vanessa Wahl, Jathish Ponnu, Armin Schlereth, Stéphanie Arrivault, Tobias Langenecker, Annika Franke, Regina Feil, John E. Lunn, Mark Stitt, Markus Schmid (2013). Regulation of Flowering by Trehalose-6-Phosphate Signaling in Arabidopsis thaliana. Science