Response of Agronomic Traits and Phosphorus Uptake to Soil P Deficiency During Rice Cultivars Improvement

Agronomy, Journal Year: 2025, Volume and Issue: 15(4), P. 983 - 983

Published: April 19, 2025

Developing high phosphorus (P) efficient rice varieties is essential for sustainable phosphate resource conservation. This study evaluated 16 cultivars from four breeding eras: ancient (<1940), early conventional (1940–2000), modern (2000–2020), and hybrid (2000–2020). Using pot experiments in low-P soil, we examined two P treatments: P0 (no application, simulating stress) P50 (50 kg hm−1 normal input). We systematically compared agronomic traits, distribution patterns, uptake efficiency across generations. The result showed that significantly increased root biomass, shoot grain yield while reducing plant height. Low-P stress (P0) had minimal impact on growth traits but negatively affected uptake, particularly content accumulation patterns. Under treatment, maintained a higher stem concentration (0.47–0.65 g·kg−1 vs. 0.27–0.49 varieties; 0.47–0.65 0.18–0.28 varieties, p < 0.05). allocation strategies varied eras. Root ratios decreased to the highest storage (24.1–30.5%), allocated largest partition of 76.4–78.1% grains. Additionally, fertilizer productivity by 131.09% 91.21% (p 0.01) rice, with hybrids exhibiting values both parameters. Principal component analysis (PCA) revealed distinct trait clusters separating ancient, conventional, based rhizosphere soil Random forest identified that, under conditions, was strongest predictor yield, whereas pH relationship yield. These findings demonstrate has enhanced adaptation through optimized architecture organ-specific strategies, which providing valuable insights developing future P-efficient varieties.

Language: Английский

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Fertilization type affects the genetic potential for phosphorus mineralization but not for phosphorus solubilization at the continental scale

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 211, P. 106112 - 106112

Published: April 22, 2025

Language: Английский

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N 6-methyladenosine modifications stabilize phosphate starvation response–related mRNAs in plant adaptation to nutrient-deficient stress

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: May 1, 2025

N6-methyladenosine (m6A), an abundant internal mRNA modification, is induced by various stress conditions and post-transcriptionally regulates gene expression. However, how m6A modifications help plants respond to nutrient-deficiency remains unclear. Here, we profile high-confidence in Arabidopsis transcriptome-wide under normal inorganic orthophosphate (Pi)-deficient (-P). High-confidence are identified using synthetic modification-free RNA libraries for systematic calibration. Pi starvation induces widespread modifications, mediated the response (PSR) master regulator PHOSPHATE STARVATION RESPONSE1 (PHR1) its family members. Many starvation-induced (PSI) occur on PSR-related mRNAs, including PHR1. In addition, PHR1 proteins interact with writers MRNA ADENOSINE METHYLASE (MTA) METHYLTRANSFERASE B (MTB) nuclei -P conditions. facilitate systemic PSR signaling, as reflected reduced content signaling a knockdown artificial miRNA line targeting MTA, which shows global decrease m6A. Transcriptome-wide decay analysis reveals that PSI-m6A increases stability of but not through alternative polyadenylation site shifts. Analysis transgenic mutations loci demonstrates stabilizes transcripts via positive feedback loop. Our findings indicate enhancing certain shedding light role nutrient responses plants.

Language: Английский

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Fungi deploy host phosphate signaling disrupter

Trends in Plant Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

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Modulation of plant immunity and biotic interactions under phosphate deficiency

Journal of Plant Research, Journal Year: 2024, Volume and Issue: 137(3), P. 343 - 357

Published: May 1, 2024

Language: Английский

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