Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response
ABSTRACT A hydroponic experiment was carried out to investigate the effect of phosphorus (P) nutrition on arsenic (As) uptake and translocation within the seedlings of rice cultivars. The experiment occurred in three stages: I 5 days of acclimatization (nutritive solution); II 10 days under P (0.0 a...
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Academia Brasileira de Ciências
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| Series: | Anais da Academia Brasileira de Ciências |
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| author | JÚLIA G. FARIAS KATIELI BERNARDY RAÍSSA SCHWALBERT BIANCA K. DEL FRARI ANDREW MEHARG MANUS CAREY ANDERSON C.R. MARQUES ANTONIO SIGNES-PASTOR DARLENE SAUSEN MÁRCIO R.W. SCHORR MIRIAN S. TAVARES FERNANDO T. NICOLOSO |
| author_facet | JÚLIA G. FARIAS KATIELI BERNARDY RAÍSSA SCHWALBERT BIANCA K. DEL FRARI ANDREW MEHARG MANUS CAREY ANDERSON C.R. MARQUES ANTONIO SIGNES-PASTOR DARLENE SAUSEN MÁRCIO R.W. SCHORR MIRIAN S. TAVARES FERNANDO T. NICOLOSO |
| author_sort | JÚLIA G. FARIAS |
| collection | DOAJ |
| description | ABSTRACT A hydroponic experiment was carried out to investigate the effect of phosphorus (P) nutrition on arsenic (As) uptake and translocation within the seedlings of rice cultivars. The experiment occurred in three stages: I 5 days of acclimatization (nutritive solution); II 10 days under P (0.0 and 0.09 mM) and As (0.0 and 100 mM) treatments; III 5 days under recovery. The As exposure had significant effect reducing dry weights of shoots or roots, resulted in elevated concentrations of As in shoot tissues. BR-IRGA 409 showed the highest susceptibility to As in biomass production and root system parameters regardless the P level. This cultivar showed contrasting responses of As translocation to shoot tissue dependent on P levels, with the highest As concentration under low P and lowest under normal P levels. P nutrition was most striking on plants recovery for all cultivars under As exposure. Clearer separation of cultivars for phosphorus use efficiency (PUE) occurred at lower shoot P contents, that was, at higher levels of P deficiency stress. IRGA 424 showed higher PUE as compared to the others cultivars. Our results go some way to understanding the role of P nutrition in controlling the effects of As in rice shoots. |
| first_indexed | 2024-04-13T08:15:41Z |
| format | Article |
| id | doaj.art-6ad66c467998492488c8d7192cb4ee59 |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-04-13T08:15:41Z |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-6ad66c467998492488c8d7192cb4ee592022-12-22T02:54:49ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-2690010.1590/0001-3765201720160320S0001-37652017005004101Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and responseJÚLIA G. FARIASKATIELI BERNARDYRAÍSSA SCHWALBERTBIANCA K. DEL FRARIANDREW MEHARGMANUS CAREYANDERSON C.R. MARQUESANTONIO SIGNES-PASTORDARLENE SAUSENMÁRCIO R.W. SCHORRMIRIAN S. TAVARESFERNANDO T. NICOLOSOABSTRACT A hydroponic experiment was carried out to investigate the effect of phosphorus (P) nutrition on arsenic (As) uptake and translocation within the seedlings of rice cultivars. The experiment occurred in three stages: I 5 days of acclimatization (nutritive solution); II 10 days under P (0.0 and 0.09 mM) and As (0.0 and 100 mM) treatments; III 5 days under recovery. The As exposure had significant effect reducing dry weights of shoots or roots, resulted in elevated concentrations of As in shoot tissues. BR-IRGA 409 showed the highest susceptibility to As in biomass production and root system parameters regardless the P level. This cultivar showed contrasting responses of As translocation to shoot tissue dependent on P levels, with the highest As concentration under low P and lowest under normal P levels. P nutrition was most striking on plants recovery for all cultivars under As exposure. Clearer separation of cultivars for phosphorus use efficiency (PUE) occurred at lower shoot P contents, that was, at higher levels of P deficiency stress. IRGA 424 showed higher PUE as compared to the others cultivars. Our results go some way to understanding the role of P nutrition in controlling the effects of As in rice shoots.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017005004101&lng=en&tlng=enmineral nutritionOryza sativaphosphateArsenic uptake. |
| spellingShingle | JÚLIA G. FARIAS KATIELI BERNARDY RAÍSSA SCHWALBERT BIANCA K. DEL FRARI ANDREW MEHARG MANUS CAREY ANDERSON C.R. MARQUES ANTONIO SIGNES-PASTOR DARLENE SAUSEN MÁRCIO R.W. SCHORR MIRIAN S. TAVARES FERNANDO T. NICOLOSO Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response Anais da Academia Brasileira de Ciências mineral nutrition Oryza sativa phosphate Arsenic uptake. |
| title | Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response |
| title_full | Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response |
| title_fullStr | Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response |
| title_full_unstemmed | Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response |
| title_short | Effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response |
| title_sort | effect of phosphorus on arsenic uptake and metabolism in rice cultivars differing in phosphorus use efficiency and response |
| topic | mineral nutrition Oryza sativa phosphate Arsenic uptake. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017005004101&lng=en&tlng=en |
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