Rice Root and Leaf Physiological Responses to Low-Phosphorus Stress

A 2026 study by Chenglong Guan compares physiological responses of four rice cultivars to low-phosphorus stress. The dataset, shared under CC-BY-4.0, includes results from phenotypic screening, nutrient depletion experiments, gas exchange measurements, and enzymatic assays. It is a 2.8 MB document analyzing root phosphorus uptake kinetics and leaf carbon–nitrogen metabolism.

Use Cases

• Modeling root phosphorus uptake kinetics based on parameters like maximum uptake capacity (Imax) and affinity (Km).
• Analyzing the relationship between stomatal conductance and transpiration-driven nutrient transport under stress.
• Studying carbon allocation patterns based on reported changes in root-to-shoot ratio and sucrose phosphate synthase activity.
• Investigating metabolic balance through data on free amino acid accumulation and acid phosphatase activity.

Strengths

• Includes specific quantitative results, such as a 39.47–45.09% higher net photosynthetic rate in tolerant cultivars.
• Documents a systematic comparison of four cultivars selected from a preliminary screen of 156 germplasm resources.
• Applies multiple experimental methods: the Claassen–Barber nutrient depletion method, gas exchange measurements, and enzymatic assays.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The primary data format is a DOCX document, which may require extraction for computational analysis.

Provenance

Source

figshare, author Chenglong Guan.

Collection Method

Experimental study using phenotypic screening, nutrient depletion experiments, gas exchange measurements, and enzymatic assays.

Freshness

Last updated 2026-05-18 05:44:45; freshness should be verified.