Nitrate inhibits the remobilization of cell wall phosphorus under phosphorus-starvation conditions in rice (Oryza sativa)
The rice cultivars ‘Kasalath’ (Kas) and ‘Nipponbare’ (Nip) were used to demonstrate that the nitrogen source NO₃⁻ inhibits internal phosphorus (P) reutilization in rice under P-absence conditions. Analysis using Kas showed that the expression of-P-induced marker genes OsIPS1/2 and OsSPX1/2/3/5 are s...
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| Veröffentlicht in: | Planta 2018-07, Vol.248 (1), p.185-196 |
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| creator | Zhu, Chun Quan Zhu, Xiao Fang Wang, Chao Dong, Xiao Ying Shen, Ren Fang |
| description | The rice cultivars ‘Kasalath’ (Kas) and ‘Nipponbare’ (Nip) were used to demonstrate that the nitrogen source NO₃⁻ inhibits internal phosphorus (P) reutilization in rice under P-absence conditions. Analysis using Kas showed that the expression of-P-induced marker genes OsIPS1/2 and OsSPX1/2/3/5 are significantly higher under 1 mM NO₃⁻-P (1N-P) treatment than 0 mM NO₃⁻-P (0N-P) treatment. The absence of NO₃⁻ from the nutrient solution significantly increased cell wall P release by increasing pectin synthesis and increasing the activity of pectin methylesterase (PME), and also significantly improved the translocation of soluble P from the root to the shoot by increasing xylem sap P content under P-absence conditions. The rice seedlings grown in 0 mM NO₃⁻ accumulated significantly higher nitric oxide (NO) in the roots than those grown in 1 mM NO₃⁻. Exogenously applying the NO donor sodium nitroprusside (SNP) revealed that NO is a major contributor to differential cell wall P remobilization in rice by mediating pectin synthesis and demethylation under different NO₃⁻ concentrations (0 and 1 mM) under P-deprived conditions. |
| doi_str_mv | 10.1007/s00425-018-2892-z |
| format | Article |
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Analysis using Kas showed that the expression of-P-induced marker genes OsIPS1/2 and OsSPX1/2/3/5 are significantly higher under 1 mM NO₃⁻-P (1N-P) treatment than 0 mM NO₃⁻-P (0N-P) treatment. The absence of NO₃⁻ from the nutrient solution significantly increased cell wall P release by increasing pectin synthesis and increasing the activity of pectin methylesterase (PME), and also significantly improved the translocation of soluble P from the root to the shoot by increasing xylem sap P content under P-absence conditions. The rice seedlings grown in 0 mM NO₃⁻ accumulated significantly higher nitric oxide (NO) in the roots than those grown in 1 mM NO₃⁻. Exogenously applying the NO donor sodium nitroprusside (SNP) revealed that NO is a major contributor to differential cell wall P remobilization in rice by mediating pectin synthesis and demethylation under different NO₃⁻ concentrations (0 and 1 mM) under P-deprived conditions.</description><identifier>ISSN: 0032-0935</identifier><identifier>EISSN: 1432-2048</identifier><identifier>DOI: 10.1007/s00425-018-2892-z</identifier><identifier>PMID: 29663070</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Science + Business Media</publisher><subject>Agriculture ; Aquatic plants ; Biomedical and Life Sciences ; Cell Wall - drug effects ; Cell Wall - metabolism ; Cell walls ; Cultivars ; Demethylation ; Dose-Response Relationship, Drug ; Ecology ; Forestry ; Gene expression ; Homeostasis - drug effects ; Life Sciences ; Nitrate Reductase - metabolism ; Nitrates - pharmacology ; Nitric oxide ; Nutrient release ; ORIGINAL ARTICLE ; Oryza - drug effects ; Oryza - metabolism ; Oryza sativa ; Pectin ; Pectinesterase ; Phosphate starvation response ; Phosphorus ; Phosphorus - deficiency ; Phosphorus - metabolism ; Plant Roots - drug effects ; Plant Roots - metabolism ; Plant Sciences ; Real-Time Polymerase Chain Reaction ; Rice ; Seedlings ; Single-nucleotide polymorphism ; Sodium ; Sodium nitroprusside ; Synthesis ; Translocation ; Uronic Acids - metabolism ; Xylem</subject><ispartof>Planta, 2018-07, Vol.248 (1), p.185-196</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2018</rights><rights>Planta is a copyright of Springer, (2018). 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Analysis using Kas showed that the expression of-P-induced marker genes OsIPS1/2 and OsSPX1/2/3/5 are significantly higher under 1 mM NO₃⁻-P (1N-P) treatment than 0 mM NO₃⁻-P (0N-P) treatment. The absence of NO₃⁻ from the nutrient solution significantly increased cell wall P release by increasing pectin synthesis and increasing the activity of pectin methylesterase (PME), and also significantly improved the translocation of soluble P from the root to the shoot by increasing xylem sap P content under P-absence conditions. The rice seedlings grown in 0 mM NO₃⁻ accumulated significantly higher nitric oxide (NO) in the roots than those grown in 1 mM NO₃⁻. Exogenously applying the NO donor sodium nitroprusside (SNP) revealed that NO is a major contributor to differential cell wall P remobilization in rice by mediating pectin synthesis and demethylation under different NO₃⁻ concentrations (0 and 1 mM) under P-deprived conditions.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Science + Business Media</pub><pmid>29663070</pmid><doi>10.1007/s00425-018-2892-z</doi><tpages>12</tpages></addata></record> |
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| subjects | Agriculture Aquatic plants Biomedical and Life Sciences Cell Wall - drug effects Cell Wall - metabolism Cell walls Cultivars Demethylation Dose-Response Relationship, Drug Ecology Forestry Gene expression Homeostasis - drug effects Life Sciences Nitrate Reductase - metabolism Nitrates - pharmacology Nitric oxide Nutrient release ORIGINAL ARTICLE Oryza - drug effects Oryza - metabolism Oryza sativa Pectin Pectinesterase Phosphate starvation response Phosphorus Phosphorus - deficiency Phosphorus - metabolism Plant Roots - drug effects Plant Roots - metabolism Plant Sciences Real-Time Polymerase Chain Reaction Rice Seedlings Single-nucleotide polymorphism Sodium Sodium nitroprusside Synthesis Translocation Uronic Acids - metabolism Xylem |
| title | Nitrate inhibits the remobilization of cell wall phosphorus under phosphorus-starvation conditions in rice (Oryza sativa) |
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