ArticlePlant physiology2010
Leaf senescence is accompanied by an early disruption of the microtubule network in Arabidopsis.
Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 57 citations in OpenAlex.
- The NAC Transcription FactorsInternational journal of molecular sciences · 2025Article
- Phospholipase-mediated phosphate recycling during plant leaf senescence.Genome biology · 2024Article
- Metabolic control of arginine and ornithine levels paces the progression of leaf senescence.Plant physiology · 2022Article
- Transcriptional Programs and Regulators Underlying Age-Dependent and Dark-Induced Senescence inCells · 2022Article
- The Transcriptional Corepressor HOS15 Mediates Dark-Induced Leaf Senescence in Arabidopsis.Frontiers in plant science · 2022Article
- Wheat Transcription Factor TaSNAC11-4B Positively Regulates Leaf Senescence through Promoting ROS Production in TransgenicInternational journal of molecular sciences · 2020Article
- Dark-Induced Hormonal Regulation of Plant Growth and Development.Frontiers in plant science · 2020Review
- TheFrontiers in cell and developmental biology · 2019Article
- Autophagy counteracts instantaneous cell death during seasonal senescence of the fine roots and leaves in Populus trichocarpa.BMC plant biology · 2018Article
- A DREPP protein interacted with PeaT1 from Alternaria tenuissima and is involved in elicitor-induced disease resistance in Nicotiana plants.Journal of plant research · 2018Article
- Darkened Leaves Use Different Metabolic Strategies for Senescence and Survival.Plant physiology · 2018Article
- Class XI Myosins Contribute to Auxin Response and Senescence-Induced Cell Death inFrontiers in plant science · 2018Article
- The RiceFrontiers in plant science · 2018Article
- Balancing Strength and Flexibility: How the Synthesis, Organization, and Modification of Guard Cell Walls Govern Stomatal Development and Dynamics.Frontiers in plant science · 2018Review
- Katanin: A Sword Cutting Microtubules for Cellular, Developmental, and Physiological Purposes.Frontiers in plant science · 2017Review
- KATANIN 1 Is Essential for Embryogenesis and Seed Formation in Arabidopsis.Frontiers in plant science · 2017Article
- Katanin Effects on Dynamics of Cortical Microtubules and Mitotic Arrays inFrontiers in plant science · 2017Article
- Dissecting the Metabolic Role of Mitochondria during Developmental Leaf Senescence.Plant physiology · 2016Article
- Multifunctional Microtubule-Associated Proteins in Plants.Frontiers in plant science · 2016Review
- Calcium-dependent depletion zones in the cortical microtubule array coincide with sites of, but do not regulate, wall ingrowth papillae deposition in epidermal transfer cells.Journal of experimental botany · 2015Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The dynamic assembly and disassembly of microtubules (MTs) is essential for cell function. Although leaf senescence is a well-documented process, the role of the MT cytoskeleton during senescence in plants remains unknown. Here, we show that both natural leaf senescence and senescence of individually darkened Arabidopsis (Arabidopsis thaliana) leaves are accompanied by early degradation of the MT network in epidermis and mesophyll cells, whereas guard cells, which do not senesce, retain their MT network. Similarly, entirely darkened plants, which do not senesce, retain their MT network. While genes encoding the tubulin subunits and the bundling/stabilizing MT-associated proteins (MAPs) MAP65 and MAP70-1 were repressed in both natural senescence and dark-induced senescence, we found strong induction of the gene encoding the MT-destabilizing protein MAP18. However, induction of MAP18 gene expression was also observed in leaves from entirely darkened plants, showing that its expression is not sufficient to induce MT disassembly and is more likely to be part of a Ca(2+)-dependent signaling mechanism. Similarly, genes encoding the MT-severing protein katanin p60 and two of the four putative regulatory katanin p80s were repressed in the dark, but their expression did not correlate with degradation of the MT network during leaf senescence. Taken together, these results highlight the earliness of the degradation of the cortical MT array during leaf senescence and lead us to propose a model in which suppression of tubulin and MAP genes together with induction of MAP18 play key roles in MT disassembly during senescence.
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