ArticlePlanta2009
BREVIS RADIX is involved in cytokinin-mediated inhibition of lateral root initiation in Arabidopsis.
Article in Planta, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 47 citations in OpenAlex.
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- The Genetics of Plant-Plant Interactions and Their Cascading Effects on Agroecosystems-from Model Plants to Applications.Plant & cell physiology · 2025Review
- Crosstalk among plant hormone regulates the root development.Plant signaling & behavior · 2024Review
- Comprehensive identification and systematical characterization of BRX gene family and the functional of GhBRXL5A in response to salt stress.BMC plant biology · 2024Article
- Article
- Receptor-like cytoplasmic kinases PBL34/35/36 are required for CLE peptide-mediated signaling to maintain shoot apical meristem and root apical meristem homeostasis in Arabidopsis.The Plant cell · 2022Article
- Auxin-Cytokinin Balance Shapes Maize Root Architecture by Controlling Primary Root Elongation and Lateral Root Development.Frontiers in plant science · 2022Article
- Transcriptomic profiles of non-embryogenic and embryogenic callus cells in a highly regenerative upland cotton line (Gossypium hirsutum L.).BMC developmental biology · 2020Article
- Genome-Wide Association and Prediction of Traits Related to Salt Tolerance in Autotetraploid Alfalfa (International journal of molecular sciences · 2020Article
- Selective auxin agonists induce specific AUX/IAA protein degradation to modulate plant development.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Subgenome parallel selection is associated with morphotype diversification and convergent crop domestication in Brassica rapa and Brassica oleracea.Nature genetics · 2016Article
- Cytokinin-induced promotion of root meristem size in the fern Azolla supports a shoot-like origin of euphyllophyte roots.The New phytologist · 2016Article
- Versatile roles of brassinosteroid in plants in the context of its homoeostasis, signaling and crosstalks.Frontiers in plant science · 2015Review
- Natural variation of root traits: from development to nutrient uptake.Plant physiology · 2014Review
- Glucose and phytohormone interplay in controlling root directional growth in Arabidopsis.Plant signaling & behavior · 2014Article
- Systems approaches to study root architecture dynamics.Frontiers in plant science · 2013Review
- Transcriptome profiling of cytokinin and auxin regulation in tomato root.Journal of experimental botany · 2013Article
- Quantitative analysis of lateral root development: pitfalls and how to avoid them.The Plant cell · 2012Review
- Dissecting the role of CHITINASE-LIKE1 in nitrate-dependent changes in root architecture.Plant physiology · 2011Article
- Cytokinin-induced root growth involves actin filament reorganization.Plant signaling & behavior · 2011Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In contrast to auxin, relatively little is known about the molecular mechanism of cytokinin (CTK) inhibition of lateral root initiation. Previous studies demonstrated that BREVIS RADIX (BRX), a protein of unknown biochemical function, maintains a rate-limiting brassinosteroid biosynthesis enzyme expression to keep brassinosteroid biosynthesis above a critical threshold. Here, we show that the brx-2 mutant is insensitive to exogenous CTK-induced inhibition of lateral root initiation and that this can be restored by embryonic brassinosteroid treatment. However post-embryonic brassinosteroid treatment can not rescue brx-2 mutant phenotype in the presence of CTK. Meanwhile the brassinosteroid receptor defective mutant bri1-6 shows normal CTK-mediated inhibition on LR growth. These results suggest the CTK-mediated inhibition of LR initiation is not directly dependent on brassinosteroid level. Furthermore, compared with wild type, brx-2 exhibits altered auxin response in presumptive founder cells, lateral root primodia and primary root tip in the presence of exogenous CTK. We concluded that CTK inhibition on lateral root initiation depend on specific auxin response loss in presumptive founder cell. The aberrant primary root growth caused by the embryonic brassinosteroid shortage can indirectly result in the lateral root phenotype of brx-2 in presence of CTK.
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