Landrace of japonica rice, Akamai exhibits enhanced root growth and efficient leaf phosphorus remobilization in response to limited phosphorus availability

Dissanayaka, D. M. S. B.; Maruyama, Hayato; Nishida, Sho; Tawaraya, Keitaro; Wasaki, Jun

doi:10.1007/s11104-016-3129-1

Cited by 20 publications

(16 citation statements)

References 46 publications

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“…P recycling is an adaptive response of soybean to P deficiency. Recently, we observed that P remobilisation in P‐deficient leaves is higher in Akamai than in Koshihikari (Dissanayaka et al ). The higher efficiency of lipid remodelling in Akamai may contribute to P remobilisation in its leaves.…”

Section: Discussionmentioning

confidence: 93%

Ancient rice cultivar extensively replaces phospholipids with non‐phosphorus glycolipid under phosphorus deficiency

Tawaraya

Honda

Cheng

et al. 2018

Physiologia Plantarum

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Recycling of phosphorus (P) from P-containing metabolites is an adaptive strategy of plants to overcome soil P deficiency. This study was aimed at demonstrating differences in lipid remodelling between low-P-tolerant and -sensitive rice cultivars using lipidome profiling. The rice cultivars Akamai (low-P-tolerant) and Koshihikari (low-P-sensitive) were grown in a culture solution with [2 mg l (+P)] or without (-P) phosphate for 21 and 28 days after transplantation. Upper and lower leaves were collected. Lipids were extracted from the leaves and their composition was analysed by liquid chromatography/mass spectrometry (LC-MS). Phospholipids, namely phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylglycerol (PG) and phosphatidylinositol (PI), lysophosphatidylcholine (lysoPC), diacylglycerol (DAG), triacylglycerol (TAG) and glycolipids, namely sulfoquinovosyl diacylglycerol (SQDG), digalactosyldiacylglycerol (DGDG), monogalactosyldiacylglycerol (MGDG) and 1,2-diacyl-3-O-alpha-glucuronosyl glycerol (GlcADG), were detected. GlcADG level was higher in both cultivars grown in -P than in +P and the increase was larger in Akamai than in Koshihikari. DGDG, MGDG and SQDG levels were higher in Akamai grown in -P than in +P and the increase was larger in the upper leaves than in the lower leaves. PC, PE, PG and PI levels were lower in both cultivars grown in -P than in +P and the decrease was larger in the lower leaves than in the upper leaves and in Akamai than in Koshihikari. Akamai catabolised more phospholipids in older leaves and synthesised glycolipids in younger leaves. These results suggested that extensive phospholipid replacement with non-phosphorus glycolipids is a mechanism underlying low-P-tolerance in rice cultivars.

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Section: Discussionmentioning

confidence: 93%

Ancient rice cultivar extensively replaces phospholipids with non‐phosphorus glycolipid under phosphorus deficiency

Tawaraya

Honda

Cheng

et al. 2018

Physiologia Plantarum

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“…Low‐Pi tolerant Akamai rice cultivar grown under P‐deficient condition showed 18% and 46% reduction in total root P concentration, respectively, at the panicle initiation and physiological maturity compared with that of low‐Pi intolerant Koshihikari cultivar (Dissanayaka, Maruyama, Nishida, Tawaraya, & Wasaki, ; Dissanayaka, Nishida, Tawaraya, & Wasaki, ). However, in their vegetative stages (28 and 49 days after transplanting), total root P concentration of Akamai tended to be higher than that of Koshihikari.…”

Section: Roots: Potential Of the Hidden Half For Remobilization Of P mentioning

confidence: 99%

“…However, in their vegetative stages (28 and 49 days after transplanting), total root P concentration of Akamai tended to be higher than that of Koshihikari. The decline of total root P concentration at reproductive stages suggests the remobilization of P from the roots to the shoot in response to P‐deficiency (Dissanayaka et al, , ). Similarly, P content in canola ( Brassica napus L.) roots showed a significant reduction between 84 days after sowing and maturity, indicating that some root P may have been translocated to the developing seeds (Rose, Rengel, Qifu, & Bowden, ).…”

Section: Roots: Potential Of the Hidden Half For Remobilization Of P mentioning

confidence: 99%

“…The vegetative–vegetative P flux starts even during early vegetative growth in response to Pi deficiency in some low‐Pi tolerant rice genotypes (Dissanayaka et al, ). These authors demonstrated that the low‐Pi tolerant Akamai maintains very low P concentration in lower leaves and markedly greater concentrations in upper leaves in response to Pi starvation.…”

Section: Temporal Variation Of P Remobilization: Vegetative–vegetativmentioning

confidence: 99%

“…The PRE of P‐deficient Akamai at panicle initiation was 72% compared with P‐sufficient conditions (45%). The respective PRE values of low‐Pi intolerant Koshihikari under P‐deficient and sufficient conditions were, respectively, 27% and 24% (Dissanayaka et al, ). Phosphorus remobilization from non‐senescent mature leaves to younger leaves at early stages of vegetative growth as observed for rice (Dissanayaka et al, ) also occurs in barley ( Hordeum vulgare L.; Mimura, Sakano, & Shimmen, ).…”

Section: Temporal Variation Of P Remobilization: Vegetative–vegetativmentioning

confidence: 99%

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Molecular mechanisms underpinning phosphorus‐use efficiency in rice

Dissanayaka

Plaxton

Lambers

et al. 2018

Plant Cell & Environment

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Orthophosphate (H PO , Pi) is an essential macronutrient integral to energy metabolism as well as a component of membrane lipids, nucleic acids, including ribosomal RNA, and therefore essential for protein synthesis. The Pi concentration in the solution of most soils worldwide is usually far too low for maximum growth of crops, including rice. This has prompted the massive use of inefficient, polluting, and nonrenewable phosphorus (P) fertilizers in agriculture. We urgently need alternative and more sustainable approaches to decrease agriculture's dependence on Pi fertilizers. These include manipulating crops by (a) enhancing the ability of their roots to acquire limiting Pi from the soil (i.e. increased P-acquisition efficiency) and/or (b) increasing the total biomass/yield produced per molecule of Pi acquired from the soil (i.e. increased P-use efficiency). Improved P-use efficiency may be achieved by producing high-yielding plants with lower P concentrations or by improving the remobilization of acquired P within the plant so as to maximize growth and biomass allocation to developing organs. Membrane lipid remodelling coupled with hydrolysis of RNA and smaller P-esters in senescing organs fuels P remobilization in rice, the world's most important cereal crop.

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Multiple analysis of root exudates and microbiome in rice (Oryza sativa) under low P conditions

et al. 2021

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Landrace of japonica rice, Akamai exhibits enhanced root growth and efficient leaf phosphorus remobilization in response to limited phosphorus availability

Cited by 20 publications

References 46 publications

Ancient rice cultivar extensively replaces phospholipids with non‐phosphorus glycolipid under phosphorus deficiency

Ancient rice cultivar extensively replaces phospholipids with non‐phosphorus glycolipid under phosphorus deficiency

Molecular mechanisms underpinning phosphorus‐use efficiency in rice

Multiple analysis of root exudates and microbiome in rice (Oryza sativa) under low P conditions

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