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Konecny T, Asatryan A, Nikoghosyan M, Binder H. Unveiling Iso- and Aniso-Hydric Disparities in Grapevine-A Reanalysis by Transcriptome Portrayal Machine Learning. PLANTS (BASEL, SWITZERLAND) 2024; 13:2501. [PMID: 39273985 PMCID: PMC11396901 DOI: 10.3390/plants13172501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2024] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/15/2024]
Abstract
Mechanisms underlying grapevine responses to water(-deficient) stress (WS) are crucial for viticulture amid escalating climate change challenges. Reanalysis of previous transcriptome data uncovered disparities among isohydric and anisohydric grapevine cultivars in managing water scarcity. By using a self-organizing map (SOM) transcriptome portrayal, we elucidate specific gene expression trajectories, shedding light on the dynamic interplay of transcriptional programs as stress duration progresses. Functional annotation reveals key pathways involved in drought response, pinpointing potential targets for enhancing drought resilience in grapevine cultivation. Our results indicate distinct gene expression responses, with the isohydric cultivar favoring plant growth and possibly stilbenoid synthesis, while the anisohydric cultivar engages more in stress response and water management mechanisms. Notably, prolonged WS leads to converging stress responses in both cultivars, particularly through the activation of chaperones for stress mitigation. These findings underscore the importance of understanding cultivar-specific WS responses to develop sustainable viticultural strategies in the face of changing climate.
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Affiliation(s)
- Tomas Konecny
- Armenian Bioinformatics Institute, Yerevan 0014, Armenia
- Interdisciplinary Centre for Bioinformatics, University of Leipzig, 04107 Leipzig, Germany
| | - Armine Asatryan
- Armenian Bioinformatics Institute, Yerevan 0014, Armenia
- Group of Plant Genomics, Institute of Molecular Biology, National Academy of Sciences of Armenia, Yerevan 0014, Armenia
| | - Maria Nikoghosyan
- Armenian Bioinformatics Institute, Yerevan 0014, Armenia
- Bioinformatics Group, Institute of Molecular Biology, National Academy of Sciences of Armenia, Yerevan 0014, Armenia
| | - Hans Binder
- Armenian Bioinformatics Institute, Yerevan 0014, Armenia
- Interdisciplinary Centre for Bioinformatics, University of Leipzig, 04107 Leipzig, Germany
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Clayton EJ, Islam NS, Pannunzio K, Kuflu K, Sirjani R, Kohalmi SE, Dhaubhadel S. Soybean AROGENATE DEHYDRATASES (GmADTs): involvement in the cytosolic isoflavonoid metabolon or trans-organelle continuity? FRONTIERS IN PLANT SCIENCE 2024; 15:1307489. [PMID: 38322824 PMCID: PMC10845154 DOI: 10.3389/fpls.2024.1307489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 01/03/2024] [Indexed: 02/08/2024]
Abstract
Soybean (Glycine max) produces a class of phenylalanine (Phe) derived specialized metabolites, isoflavonoids. Isoflavonoids are unique to legumes and are involved in defense responses in planta, and they are also necessary for nodule formation with nitrogen-fixing bacteria. Since Phe is a precursor of isoflavonoids, it stands to reason that the synthesis of Phe is coordinated with isoflavonoid production. Two putative AROGENATE DEHYDRATASE (ADT) isoforms were previously co-purified with the soybean isoflavonoid metabolon anchor ISOFLAVONE SYNTHASE2 (GmIFS2), however the GmADT family had not been characterized. Here, we present the identification of the nine member GmADT family. We determined that the GmADTs share sequences required for enzymatic activity and allosteric regulation with other characterized plant ADTs. Furthermore, the GmADTs are differentially expressed, and multiple members have dual substrate specificity, also acting as PREPHENATE DEHYDRATASES. All GmADT isoforms were detected in the stromules of chloroplasts, and they all interact with GmIFS2 in the cytosol. In addition, GmADT12A interacts with multiple other isoflavonoid metabolon members. These data substantiate the involvement of GmADT isoforms in the isoflavonoid metabolon.
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Affiliation(s)
- Emily J. Clayton
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada
- Department of Biology, University of Western Ontario, London, ON, Canada
| | - Nishat S. Islam
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada
| | - Kelsey Pannunzio
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada
- Department of Biology, University of Western Ontario, London, ON, Canada
| | - Kuflom Kuflu
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada
| | - Ramtin Sirjani
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada
- Department of Biology, University of Western Ontario, London, ON, Canada
| | - Susanne E. Kohalmi
- Department of Biology, University of Western Ontario, London, ON, Canada
| | - Sangeeta Dhaubhadel
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada
- Department of Biology, University of Western Ontario, London, ON, Canada
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