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HHU Plant Biochemistry / Molecular plant responses to combined abiotic stresses - Sewelam et al 2020
Arabidopsis molecular responses (transcript, metabolite) to single, double, and triple combinations of salt, osmotic, and heat stresses.
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Sample ARC created with the data from the Metabolights project MTBLS338. Only ISA part provided, no CWL (runs and workflows).
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Natural-Variation-and-Evolution / Microscopy_Collection / map-by-seq_CLSM-stacks
Creative Commons Attribution 4.0 InternationalUpdated -
Differential analysis of lpa2 mutant Chlamy complexome
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Andrea Schrader / Grow An ARC
Creative Commons Attribution 4.0 InternationalUpdated -
Dominik Brilhaus / Facultative CAM in Talinum
Creative Commons Attribution 4.0 InternationalReversible Burst of Transcriptional Changes during Induction of Crassulacean Acid Metabolism in Talinum triangulare.
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MAdLand Project - Schippers Lab
Evolutionary conserved and divergent responses to copper zinc superoxide dismutase inhibition in plants
After initial evolution in a reducing environment, life got successively challenged by reactive oxygen species (ROS), especially during the great oxidation event (GOE) that followed the development of photosynthesis. Therefore, ROS are deeply intertwined into the physiological, morphological and transcriptional responses of most present-day organisms. Copper-zinc superoxide dismutase (CuZnSOD) evolved during the GOE and are present in charophytes and extant land plants, but nearly absent from chlorophytes. The chemical inhibitor of CuZnSOD, lung cancer screen 1 (LCS-1), could greatly facilitate the study of SODs in diverse plants. Here, we determined the impact of chemical inhibition of plant CuZnSOD activity, on plant growth, transcription and metabolism. We followed a comparative approach by using different plant species, including Marchantia polymorpha and Physcomitrium patens, representing bryophytes, the sister lineage to vascular plants, and Arabidopsis thaliana. We show that LCS-1 causes oxidative stress in plants and that the inhibition of CuZnSODs provoked a similar core response that mainly impacted glutathione homeostasis in all plant species analyzed. That said, Physcomitrium and Arabidopsis, which contain multiple CuZnSOD isoforms showed a more complex and exacerbated response. In addition, an untargeted metabolomics approach revealed a specific metabolic signature for each plant species. Our comparative analysis exposes a conserved core response at the physiological and transcriptional level towards LCS-1, while the metabolic response largely varies. These differences correlate with the number and localization of the CuZnSOD isoforms present in each species.
Plant, Cell & Environment (in submission)
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Felix Jung / deepSTABp
MIT LicenseUpdated -
Nishant Kumar / deepSTABp
MIT LicenseUpdated -
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