ArticlePlant physiology2010
Specification of cortical parenchyma and stele of maize primary roots by asymmetric levels of auxin, cytokinin, and cytokinin-regulated proteins.
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 20 papers.
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Who cites it
20 citing papers in PubMed, 59 citations in OpenAlex.
- Single-cell transcriptomes reveal spatiotemporal heat stress response in maize roots.Nature communications · 2025Article
- Chemical and Transcriptomic Analyses Provide New Insights into Key Genes for Ginsenoside Biosynthesis in the Rhizome ofMolecules (Basel, Switzerland) · 2024Article
- ZmPILS6 is an auxin efflux carrier required for maize root morphogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Roles of auxin pathways in maize biology.Journal of experimental botany · 2023Review
- Novel insights into maize (Zea mays) development and organogenesis for agricultural optimization.Planta · 2023Review
- X-ray microscopy enables multiscale high-resolution 3D imaging of plant cells, tissues, and organs.Plant physiology · 2022Article
- Temporal and spatial auxin responsive networks in maize primary roots.Quantitative plant biology · 2022Article
- Adventitious root primordia formation and development in the stem ofPlant signaling & behavior · 2021Article
- Silencing ofInternational journal of molecular sciences · 2020Article
- Proteomics of Maize Root Development.Frontiers in plant science · 2018Review
- Article
- Nonsyntenic Genes Drive Tissue-Specific Dynamics of Differential, Nonadditive, and Allelic Expression Patterns in Maize Hybrids.Plant physiology · 2016Article
- Extensive tissue-specific transcriptomic plasticity in maize primary roots upon water deficit.Journal of experimental botany · 2016Article
- Conserved and unique features of the homeologous maize Aux/IAA proteins ROOTLESS WITH UNDETECTABLE MERISTEM 1 and RUM1-like 1.Journal of experimental botany · 2016Article
- The role of cis-zeatin-type cytokinins in plant growth regulation and mediating responses to environmental interactions.Journal of experimental botany · 2015Review
- A high-resolution tissue-specific proteome and phosphoproteome atlas of maize primary roots reveals functional gradients along the root axes.Plant physiology · 2015Article
- The impact of the long-distance transport of a BEL1-like messenger RNA on development.Plant physiology · 2013Article
- Proteome analysis in Arabidopsis reveals shoot- and root-specific targets of cytokinin action and differential regulation of hormonal homeostasis.Plant physiology · 2013Article
- Phloem-associated auxin response maxima determine radial positioning of lateral roots in maize.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2012Article
- Novel cytokinin derivatives do not show negative effects on root growth and proliferation in submicromolar range.PloS one · 2012Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In transverse orientation, maize (Zea mays) roots are composed of a central stele that is embedded in multiple layers of cortical parenchyma. The stele functions in the transport of water, nutrients, and photosynthates, while the cortical parenchyma fulfills metabolic functions that are not very well characterized. To better understand the molecular functions of these root tissues, protein- and phytohormone-profiling experiments were conducted. Two-dimensional gel electrophoresis combined with electrospray ionization tandem mass spectrometry identified 59 proteins that were preferentially accumulated in the cortical parenchyma and 11 stele-specific proteins. Hormone profiling revealed preferential accumulation of indole acetic acid and its conjugate indole acetic acid-aspartate in the stele and predominant localization of the cytokinin cis-zeatin, its precursor cis-zeatin riboside, and its conjugate cis-zeatin O-glucoside in the cortical parenchyma. A root-specific beta-glucosidase that functions in the hydrolysis of cis-zeatin O-glucoside was preferentially accumulated in the cortical parenchyma. Similarly, four enzymes involved in ammonium assimilation that are regulated by cytokinin were preferentially accumulated in the cortical parenchyma. The antagonistic distribution of auxin and cytokinin in the stele and cortical parenchyma, together with the cortical parenchyma-specific accumulation of cytokinin-regulated proteins, suggest a molecular framework that specifies the function of these root tissues that also play a role in the formation of lateral roots from pericycle and endodermis cells.
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