Nitrate influences the metabolism of nitrogenous compounds in calopo (Calopogonium mucunoides) throughout the life cycle
| Autor: | Regiane Aparecida Canatto, Leandro Ferreira Aguiar, Gilberto Costa Justino, Lucas Anjos Souza, Liliane Santos Camargos |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Biotemas, Vol 27, Iss 1, Pp 1-8 (2014) |
| Druh dokumentu: | article |
| ISSN: | 2175-7925 0103-1643 |
| DOI: | 10.5007/2175-7925.2014v27n1p1http://dx.doi.org/10.5007/2175-7925.2014v27n1p1 |
| Popis: | In Calopogonium mucunoides, nitrogen metabolism was significantly altered between the various plant development stages. Throughout the life cycle, even in the presence of nitrate, the plant kept itself nodulated and high ureide concentrations were identified in xylem tissues and sap, evidencing that the species is tolerant to nitrate and that this does not affect nitrogen fixation over development. Nitrate biochemical reduction presents alterations throughout the life cycle, with change in the reduction site along with changes in total soluble amino acid concentrations. However, constitutive reductase nitrate activity in nodules disappears with the exposition to nitrate. |
| Databáze: | Directory of Open Access Journals |
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