ArticleBMC plant biology2014
Consequences of induced brassinosteroid deficiency in Arabidopsis leaves.
Article in BMC plant biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Plant Signaling Hormones and Transcription Factors: Key Regulators of Plant Responses to Growth, Development, and Stress.Plants (Basel, Switzerland) · 2025Review
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- Synergistic effects of melatonin and 24-epibrassinolide on chickpea water deficit tolerance.BMC plant biology · 2024Article
- Application of 2,4-Epibrassinolide Improves Drought Tolerance in Tobacco through Physiological and Biochemical Mechanisms.Biology · 2022Article
- Deciphering the potential role of Maca compounds prescription influencing gut microbiota in the management of exercise-induced fatigue by integrative genomic analysis.Frontiers in nutrition · 2022Article
- Brassinosteroids and sucrose transport in mycorrhizal tomato plants.Plant signaling & behavior · 2020Article
- Early Pep-13-induced immune responses are SERK3A/B-dependent in potato.Scientific reports · 2019Article
- The Sugar-Signaling Hub: Overview of Regulators and Interaction with the Hormonal and Metabolic Network.International journal of molecular sciences · 2018Review
- Comparative transcriptomics reveals a reduction in carbon capture and flux between source and sink in cytokinin-treated inflorescences of3 Biotech · 2018Article
- Article
- Extensive Transcriptome Changes During Natural Onset and Release of Vegetative Bud Dormancy in Populus.Frontiers in plant science · 2015Article
- Signalling and regulation of plant development by carbon/nitrogen balance.Physiologia plantarumReview
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Authors and funding
10 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe identification of brassinosteroid (BR) deficient and BR insensitive mutants provided conclusive evidence that BR is a potent growth-promoting phytohormone. Arabidopsis mutants are characterized by a compact rosette structure, decreased plant height and reduced root system, delayed development, and reduced fertility. Cell expansion, cell division, and multiple developmental processes depend on BR. The molecular and physiological basis of BR action is diverse. The BR signalling pathway controls the activity of transcription factors, and numerous BR responsive genes have been identified. The analysis of dwarf mutants, however, may to some extent reveal phenotypic changes that are an effect of the altered morphology and physiology. This restriction holds particularly true for the analysis of established organs such as rosette leaves.
resultsIn this study, the mode of BR action was analysed in established leaves by means of two approaches. First, an inhibitor of BR biosynthesis (brassinazole) was applied to 21-day-old wild-type plants. Secondly, BR complementation of BR deficient plants, namely CPD (constitutive photomorphogenic dwarf)-antisense and cbb1 (cabbage1) mutant plants was stopped after 21 days. BR action in established leaves is associated with stimulated cell expansion, an increase in leaf index, starch accumulation, enhanced CO2 release by the tricarboxylic acid cycle, and increased biomass production. Cell number and protein content were barely affected.
conclusionPrevious analysis of BR promoted growth focused on genomic effects. However, the link between growth and changes in gene expression patterns barely provided clues to the physiological and metabolic basis of growth. Our study analysed comprehensive metabolic data sets of leaves with altered BR levels. The data suggest that BR promoted growth may depend on the increased provision and use of carbohydrates and energy. BR may stimulate both anabolic and catabolic pathways.
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