ArticlePlant physiology2006
ZmPIN1a and ZmPIN1b encode two novel putative candidates for polar auxin transport and plant architecture determination of maize.
Article in Plant physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.
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72 citing papers in PubMed, 152 citations in OpenAlex.
- Unlocking grass leaf development: foundations for tunable cereal design.The New phytologist · 2025Review
- Identification of Auxin, Cytokinin, Transcription Factors, and Other Zygotic Embryogenesis-Related Genes inPlants (Basel, Switzerland) · 2025Article
- Differential cold stress intensities drive unique morphological and transcriptomic changes in Zea mays root hairs.BMC genomics · 2025Article
- ThePlants (Basel, Switzerland) · 2025Article
- Development of pollinated and unpollinated ovules in Ginkgo biloba: unravelling the role of pollen in ovule tissue maturation.Journal of experimental botany · 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
- A mutation in the brassinosteroid biosynthesis geneHorticulture research · 2024Article
- Roles of auxin pathways in maize biology.Journal of experimental botany · 2023Review
- Auxins and grass shoot architecture: how the most important hormone makes the most important plants.Journal of experimental botany · 2023Review
- The maize preligule band is subdivided into distinct domains with contrasting cellular properties prior to ligule outgrowth.Development (Cambridge, England) · 2023Article
- Article
- Novel insights into maize (Zea mays) development and organogenesis for agricultural optimization.Planta · 2023Review
- Molecular and functional dissection of LIGULELESS1 (LG1) in plants.Frontiers in plant science · 2023Review
- Conservation and divergence: Regulatory networks underlying reproductive branching in rice and maize.Journal of advanced research · 2022Review
- The Italian Research on the Molecular Characterization of Maize Kernel Development.International journal of molecular sciences · 2022Review
- Developmental regulation of leaf venation patterns: monocot versus eudicots and the role of auxin.The New phytologist · 2022Review
- ZmTE1 promotes plant height by regulating intercalary meristem formation and internode cell elongation in maize.Plant biotechnology journal · 2022Article
- Genetic dissection of maize plant architecture using a novel nested association mapping population.The plant genome · 2022Article
- Morphological Characterization and Transcriptome Analysis of New Dwarf and Narrow-Leaf (International journal of molecular sciences · 2022Article
- Article
12 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Shoot apical meristems produce organs in a highly stereotypic pattern that involves auxin. Auxin is supposed to be actively transported from cell to cell by influx (AUXIN/LIKE AUXIN proteins) and efflux (PIN-FORMED proteins) membrane carriers. Current hypotheses propose that, at the meristem surface, PIN proteins create patterns of auxin gradients that, in turn, create patterns of gene expression and morphogenesis. These hypotheses are entirely based on work in Arabidopsis (Arabidopsis thaliana). To verify whether these models also apply to other species, we studied the behavior of PIN proteins during maize (Zea mays) development. We identified two novel putative orthologs of AtPIN1 in maize and analyzed their expression pattern during development. The expression studies were complemented by immunolocalization studies using an anti-AtPIN1 antibody. Interestingly, the maize proteins visualized by this antibody are almost exclusively localized in subepidermal meristematic layers. Both tassel and ear were characterized by a compact group of cells, just below the surface, carrying PIN. In contrast to or to complement what was shown in Arabidopsis, these results point to the importance of internally localized cells in the patterning process. We chose the barren inflorescence2 (bif2) maize mutant to study the role of auxin polar fluxes in inflorescence development. In severe alleles of bif2, the tassel and the ear present altered ZmPIN1a and ZmPIN1b protein expression and localization patterns. In particular, the compact groups of cells in the tassel and ear of the mutant were missing. We conclude that BIF2 is important for PIN organization and could play a role in the establishment of polar auxin fluxes in maize inflorescence, indirectly modulating the process of axillary meristem formation and development.
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