ArticleAnnals of botany2025
Regulation of maize root growth by local phosphorus availability, sucrose metabolism, and partitioning.
Article in Annals of botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- ZmPHR1 and ZmPHR2 Mediate Metabolic and Microbial Regulation of Maize Adaptation to Phosphorus Heterogeneity.Plant, cell & environment · 2026Article
- ANFIS-derived response surfaces reveal organ-specific optimal conditions for nutrient supply, light quality, plant developmental status, and culture configuration in Phalaenopsis amabilis in vitro propagation.BMC plant biology · 2026Article
- Cell Wall Invertase Inhibitor SlINVINH1 Acts as a Negative Regulator in Fruit Ripening of Tomato.Plants (Basel, Switzerland) · 2026Article
- Synergistic adaptation of rice root phosphorus uptake kinetics and leaf carbon-nitrogen metabolism under low-phosphorus conditions.Frontiers in plant science · 2026Article
- Organ-specific transcriptional and metabolic adaptations of potato plants to limited phosphate availability prior and after tuberization.The Plant journal : for cell and molecular biology · 2025Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
BACKGROUND AND
aimsUnderstanding how maize roots proliferate in phosphorus (P)-rich soil patches is critical for improving nutrient acquisition and crop productivity. This study explores the mechanisms of root adaptation to heterogeneous P availability, focusing on sucrose metabolism and the role of local P signals.
methodsA split-root system with chambers of differing inorganic phosphate (Pi) concentrations (0 and 500 μm) was used to examine maize root responses. Various physiological and biochemical parameters, including root growth, sucrose partitioning, enzyme activities and gene expression, were measured to elucidate the underlying mechanisms. KEY
resultsRoot proliferation, particularly of second-order lateral roots, was markedly enhanced in P-rich patches. Sucrose was preferentially allocated to the Pi-supplied side, as confirmed by Fourier transform infrared microscopy. Sucrose content in these roots decreased, indicating active metabolism. Higher activities of cell-wall invertase and sucrose synthase were observed in the Pi-supplied roots, supporting enhanced carbohydrate utilization.
conclusionsLocal P availability triggers significant adjustments in sucrose metabolism and allocation, enhancing the sink capacity of maize roots in P-rich patches. These changes facilitate efficient lateral root proliferation and Pi utilization, highlighting the critical role of local P signals in nutrient acquisition strategies. This research provides deeper insights into the adaptive responses of maize to heterogeneous P environments, offering potential strategies for improving crop nutrient efficiency.
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