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Reference Detail
| Reference | ||
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| Author | Marcus Vinícius Loss Sperandio, Leandro Azevedo Santos, Carlos Alberto Bucher, Manlio Silvestre Fernandes, Sonia Regina de Souza | |
| Title | Isoforms of plasma membrane H(+)-ATPase in rice root and shoot are differentially induced by starvation and resupply of NO₃⁻ or NH₄+. | |
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Abstract: The goal of this study was to evaluate the effects of nitrogen starvation and resupply in 10 PM H+-ATPase isoforms and the expression of NO₃⁻ and NH₄+ transporters in rice. The net uptake of both forms of NO₃⁻-N or NH₄+-N was increased with its resupply. Resupply of NO₃⁻ resulted in induction of the following PM H+-ATPase isoforms, OsA1, OsA2, OsA5 and OsA7 in the shoots and OsA2, OsA5, OsA7 and OsA8 in the roots. Resupply of NH₄+ resulted in the induction of the following OsA1, OsA3 and OsA7 isoforms in the roots while OsA1 was induced in the shoots. It was observed that increased PM H+-ATPase activity also resulted in increased net uptake of NO₃⁻ and NH₄+. In the roots, OsNRT2.1 and OsNRT2.2 were induced by NO₃⁻ resupply, while OsAMT1.1 and OsAMT1.2 were induced by NH₄+ deficiency. The results showed that the expression of PM H+-ATPase isoforms is related to NO₃⁻ and NH₄+ transporters as well as in which section of the plant it takes place. PM H+-ATPase isoforms OsA2 and OsA7 displayed the strongest induction in response to N resupply, therefore indicating that these genes could be involved in N uptake in rice. |
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| Journal | Plant Sci. | |
| Country | Brazil | |
| Volume | 180(2) | |
| Pages | 251-8 | |
| Year | 2011 | |
| PubMed ID | 21421368 | |
| PubMed Central ID | - | |
| DOI | 10.1016/j.plantsci.2010.08.018 | |
| URL | - | |
| Relation | ||
| Gene | AHA1 AHA2 AHA3 AHA4 AHA5 AHA8 AMT1;1 AMT1;2 LMPA NRT2.1 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
