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Originalpublikation
Führs, H.; Hartwig, M.; Molina, L.E.B.; Heintz, D.; Van Dorsselaer, A. et al.: Early manganese-toxicity response in Vigna unguiculata L. - A proteomic and transcriptomic study. In: Proteomics 8 (2008), Nr. 1, S. 149-159. DOI: https://doi.org/10.1002/pmic.200700478
Version im Repositorium
Zum Zitieren der Version im Repositorium verwenden Sie bitte diesen DOI:
https://doi.org/10.15488/11664
| Zusammenfassung: | |
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The apoplast is known to play a predominant role in the expression of manganese (Mn) toxicity in cowpea (Vigna unguiculata L.) leaves. To unravel early Mn-toxicity responses after 1-3 days Mn treatment also in the leaf symplast, we studied the symplastic reactions induced by Mn in two cultivars differing in Mn tolerance on a total cellular level. Comparative proteome analyses of plants exposed to low or high Mn allowed to identify proteins specifically affected by Mn, particularly in the Mn-sensitive cowpea cultivar. These proteins are involved in CO2 fixation, stabilization of the Mn cluster of the photosystem II, pathogenesis-response reactions and protein degradation. Chloroplastic proteins important for CO2 fixation and photosynthesis were of lower abundance upon Mn stress suggesting scavenging of metabolic energy for a specific stress response. Transcriptome analyses supported these findings, but additionally revealed an upregulation of genes involved in signal transduction only in the Mn-sensitive cultivar. In conclusion, a coordinated interplay of apoplastic and symplastic reactions seems to be important during the Mn-stress response in cowpea. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
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| Lizenzbestimmungen: | Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
| Publikationstyp: | Article |
| Publikationsstatus: | acceptedVersion |
| Erstveröffentlichung: | 2008 |
| Schlagwörter (englisch): | Apoplast, Cowpea, Manganese toxicity, Symplast, manganese, apoplast, article, carbon dioxide fixation, cell level, chloroplast, cowpea, cultivar, metabolism, metal tolerance, nonhuman, pathogenesis, photosynthesis, photosystem II, plant leaf, priority journal, protein degradation, proteomics, signal transduction, stress, symplast, toxicity, transcriptomics, upregulation, Amino Acid Sequence, Electrophoresis, Gel, Two-Dimensional, Fabaceae, Gene Expression Profiling, Gene Expression Regulation, Plant, Manganese, Molecular Sequence Data, Oxidative Stress, Photosystem II Protein Complex, Plant Diseases, Plant Leaves, Proteome, Vigna unguiculata |
| Fachliche Zuordnung (DDC): | 540 | Chemie |
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