Spreading the news: subcellular and organellar reactive oxygen species production and signalling
| Autor: | Niina Idänheimo, Enjun Xu, Jaakko Kangasjärvi, Mikael Brosché, Per Mühlenbock, Lorin F. Mignolet-Spruyt, Frank Van Breusegem, Frank A. Hoeberichts |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Physiology Plant Science Biology 01 natural sciences 03 medical and health sciences chemistry.chemical_compound Plant Cells Cellular compartment Reactive nitrogen species Plant Physiological Phenomena Calcium signaling chemistry.chemical_classification Organelles Reactive oxygen species Peroxisome Cell biology Crosstalk (biology) 030104 developmental biology Signalling chemistry Signal transduction Reactive Oxygen Species 010606 plant biology & botany Signal Transduction |
| Zdroj: | Journal of experimental botany. 67(13) |
| ISSN: | 1460-2431 |
| Popis: | As plants are sessile organisms that have to attune their physiology and morphology continuously to varying environmental challenges in order to survive and reproduce, they have evolved complex and integrated environment-cell, cell-cell, and cell-organelle signalling circuits that regulate and trigger the required adjustments (such as alteration of gene expression). Although reactive oxygen species (ROS) are essential components of this network, their pathways are not yet completely unravelled. In addition to the intrinsic chemical properties that define the array of interaction partners, mobility, and stability, ROS signalling specificity is obtained via the spatiotemporal control of production and scavenging at different organellar and subcellular locations (e.g. chloroplasts, mitochondria, peroxisomes, and apoplast). Furthermore, these cellular compartments may crosstalk to relay and further fine-tune the ROS message. Hence, plant cells might locally and systemically react upon environmental or developmental challenges by generating spatiotemporally controlled dosages of certain ROS types, each with specific chemical properties and interaction targets, that are influenced by interorganellar communication and by the subcellular location and distribution of the involved organelles, to trigger the suitable acclimation responses in association with other well-established cellular signalling components (e.g. reactive nitrogen species, phytohormones, and calcium ions). Further characterization of this comprehensive ROS signalling matrix may result in the identification of new targets and key regulators of ROS signalling, which might be excellent candidates for engineering or breeding stress-tolerant plants. |
| Databáze: | OpenAIRE |
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