ArticleAnnals of botany2020
Heterogeneous phosphate supply influences maize lateral root proliferation by regulating auxin redistribution.
Article in Annals of botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- ZmPHR1 and ZmPHR2 Mediate Metabolic and Microbial Regulation of Maize Adaptation to Phosphorus Heterogeneity.Plant, cell & environment · 2026Article
- Regulation of maize root growth by local phosphorus availability, sucrose metabolism, and partitioning.Annals of botany · 2025Article
- Phytic acid is an available phosphorus source for maize plants in juvenile phase belonging to two populations with different breeding backgrounds.BMC plant biology · 2025Article
- Article
- Roles of auxin pathways in maize biology.Journal of experimental botany · 2023Review
- Root Pulling Force Across Drought in Maize Reveals Genotype by Environment Interactions and Candidate Genes.Frontiers in plant science · 2022Article
- Recent Advances in the Analysis of Cold Tolerance in Maize.Frontiers in plant science · 2022Review
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
- Wheat growth responses to soil mechanical impedance are dependent on phosphorus supply.Soil & tillage research · 2021Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsRoots take up phosphorus (P) as inorganic phosphate (Pi). Enhanced root proliferation in Pi-rich patches enables plants to capture the unevenly distributed Pi, but the underlying control of root proliferation remains largely unknown. Here, the role of auxin in this response was investigated in maize (Zea mays).
methodsA split-root, hydroponics system was employed to investigate root responses to Pi supply, with one (heterogeneous) or both (homogeneous) sides receiving 0 or 500 μm Pi. KEY
resultsMaize roots proliferated in Pi-rich media, particularly with heterogeneous Pi supply. The second-order lateral root number was 3-fold greater in roots of plants receiving a heterogeneous Pi supply than in roots of plants with a homogeneous Pi supply. Root proliferation in a heterogeneous Pi supply was inhibited by the auxin transporter inhibitor 1-N-naphthylphthalamic acid (NPA). The proliferation of lateral roots was accompanied by an enhanced auxin response in the apical meristem and vascular tissues at the root tip, as demonstrated in a DR5::RFP marker line.
conclusionsIt is concluded that the response of maize root morphology to a heterogeneous Pi supply is modulated by local signals of Pi availability and systemic signals of plant P nutritional status, and is mediated by auxin redistribution.
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