ArticleJournal of experimental botany2013
MAP65-1a positively regulates H2O2 amplification and enhances brassinosteroid-induced antioxidant defence in maize.
Article in Journal of experimental botany, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 57 citations in OpenAlex.
- ROS inhibits microtubule dynamics and cell growth heterogeneity during Arabidopsis sepal morphogenesis.iScience · 2026Article
- Untargeted mutagenesis of brassinosteroid receptor SbBRI1 confers drought tolerance by altering phenylpropanoid metabolism in Sorghum bicolor.Plant biotechnology journal · 2024Article
- The Potential Role ofPlants (Basel, Switzerland) · 2024Article
- The contribution of Ca and Mg to the accumulation of amino acids in maize: from the response of physiological and biochemical processes.BMC plant biology · 2024Article
- Article
- AtKATANIN1 Modulates Microtubule Depolymerization and Reorganization in Response to Salt Stress inInternational journal of molecular sciences · 2019Article
- Comparative Proteomic Analysis Provides Insights into the Regulatory Mechanisms of Wheat Primary Root Growth.Scientific reports · 2019Article
- Nitric oxide acts downstream of abscisic acid in molybdenum-induced oxidative tolerance in wheat.Plant cell reports · 2018Article
- Over-Expression of a MaizeFrontiers in plant science · 2018Article
- Brassinosteroids: A Promising Option in Deciphering Remedial Strategies for Abiotic Stress Tolerance in Rice.Frontiers in plant science · 2017Review
- Nitric Oxide Mediates Molybdenum-Induced Antioxidant Defense in Wheat under Drought Stress.Frontiers in plant science · 2017Article
- Abiotic Stress Tolerance in Plants: Myriad Roles of Ascorbate Peroxidase.Frontiers in plant science · 2017Review
- Role of Reactive Oxygen Species during Cell Expansion in Leaves.Plant physiology · 2016Article
- Phosphorylation of a NAC Transcription Factor by a Calcium/Calmodulin-Dependent Protein Kinase Regulates Abscisic Acid-Induced Antioxidant Defense in Maize.Plant physiology · 2016Article
- Global Plant Stress Signaling: Reactive Oxygen Species at the Cross-Road.Frontiers in plant science · 2016Review
- ROS Regulation During Abiotic Stress Responses in Crop Plants.Frontiers in plant science · 2015Review
- The interplay between ROS and tubulin cytoskeleton in plants.Plant signaling & behavior · 2014Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Brassinosteroid (BR)-induced antioxidant defence has been shown to enhance stress tolerance. In this study, the role of the maize 65 kDa microtubule-associated protein (MAP65), ZmMAP65-1a, in BR-induced antioxidant defence was investigated. Treatment with BR increased the expression of ZmMAP65-1a in maize (Zea mays) leaves and mesophyll protoplasts. Transient expression and RNA interference silencing of ZmMAP65-1a in mesophyll protoplasts further revealed that ZmMAP65-1a is required for the BR-induced increase in expression and activity of superoxide dismutase (SOD) and ascorbate peroxidase (APX). Both exogenous and BR-induced endogenous H2O2 increased the expression of ZmMAP65-1a. Conversely, transient expression of ZmMAP65-1a in maize mesophyll protoplasts enhanced BR-induced H2O2 accumulation, while transient silencing of ZmMAP65-1a blocked the BR-induced expression of NADPH oxidase genes and inhibited BR-induced H2O2 accumulation. Inhibiting the activity and gene expression of ZmMPK5 significantly prevented the BR-induced expression of ZmMAP65-1a. Likewise, transient expression of ZmMPK5 enhanced BR-induced activities of the antioxidant defence enzymes SOD and APX in a ZmMAP65- 1a-dependent manner. ZmMPK5 directly interacted with ZmMAP65-1a in vivo and phosphorylated ZmMAP65-1a in vitro. These results suggest that BR-induced antioxidant defence in maize operates through the interaction of ZmMPK5 with ZmMAP65-1a. Furthermore, ZmMAP65-1a functions in H2O2 self-propagation via regulation of the expression of NADPH oxidase genes in BR signalling.
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