Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants
The effect of two nutrient solution temperatures (cold (10 degrees C) and warm (22 degrees C)) during two flowering events of rose plants (Rosa x hybrida cv. Grand Gala) were examined by measuring chlorophyll (Ch1) a fluorescence, ammonium (NH4(+)) content and nitrate reductase (NR) activity in four...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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PERGAMON-ELSEVIER SCIENCE LTD
2017
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.11939/4923 |
| _version_ | 1855491835668987904 |
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| author | Calatayud, Ángeles Gorbe, Elisa Roca, Dolors Martínez, Pedro F. |
| author_browse | Calatayud, Ángeles Gorbe, Elisa Martínez, Pedro F. Roca, Dolors |
| author_facet | Calatayud, Ángeles Gorbe, Elisa Roca, Dolors Martínez, Pedro F. |
| author_sort | Calatayud, Ángeles |
| collection | ReDivia |
| description | The effect of two nutrient solution temperatures (cold (10 degrees C) and warm (22 degrees C)) during two flowering events of rose plants (Rosa x hybrida cv. Grand Gala) were examined by measuring chlorophyll (Ch1) a fluorescence, ammonium (NH4(+)) content and nitrate reductase (NR) activity in four different leaf types, that is, external and internal leaves of bent shoots and lower and upper leaves of flowering stems. Besides, nitrate (NO3-) uptake and water absorption, total nitrogen (N) concentration in the plant, dry biomass, and the ratios of shoot/root and thin-white roots/suberized-brown roots were determined. Generally, cold solution increased NO3- uptake and thin-white roots production but decreased water uptake, so plants grown at cold solution had to improve their NO3- uptake mechanisms to obtain a higher amount of nutrient with less water absorption than plants grown at warm solution. The higher NO3- uptake can be related to an increase in NR activity, NH4(+) content and total N concentration at cold solution. Nutrient Solution temperature also had an effect on the photosynthetic apparatus. In general terms, the effective quantum yield (phi(PSII)) and the fraction of open PSII reaction centres (q(L)) were higher in rose plants grown at cold solution. These effects can be associated to a higher NO3- uptake and total N concentration in the plants and were modulated by irradiance throughout all the experiment. Plants could adapt to cold solution by enhancing their metabolism without a decrease in total dry biomass. Nevertheless. the effect of nutrient solution temperature is not simple and also affected by climatic factors. |
| format | Artículo |
| id | ReDivia4923 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| publisherStr | PERGAMON-ELSEVIER SCIENCE LTD |
| record_format | dspace |
| spelling | ReDivia49232025-04-25T14:44:56Z Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants Calatayud, Ángeles Gorbe, Elisa Roca, Dolors Martínez, Pedro F. chlorophyll a fluorescence nitrate reductase nitrate uptake rose root temperature ROOT-ZONE TEMPERATURE SOIL-TEMPERATURE GREENHOUSE ROSES TROPICAL CONDITIONS AIR-TEMPERATURE NITROGEN UPTAKE GAS-EXCHANGE XYLEM SAP GROWTH LEAVES The effect of two nutrient solution temperatures (cold (10 degrees C) and warm (22 degrees C)) during two flowering events of rose plants (Rosa x hybrida cv. Grand Gala) were examined by measuring chlorophyll (Ch1) a fluorescence, ammonium (NH4(+)) content and nitrate reductase (NR) activity in four different leaf types, that is, external and internal leaves of bent shoots and lower and upper leaves of flowering stems. Besides, nitrate (NO3-) uptake and water absorption, total nitrogen (N) concentration in the plant, dry biomass, and the ratios of shoot/root and thin-white roots/suberized-brown roots were determined. Generally, cold solution increased NO3- uptake and thin-white roots production but decreased water uptake, so plants grown at cold solution had to improve their NO3- uptake mechanisms to obtain a higher amount of nutrient with less water absorption than plants grown at warm solution. The higher NO3- uptake can be related to an increase in NR activity, NH4(+) content and total N concentration at cold solution. Nutrient Solution temperature also had an effect on the photosynthetic apparatus. In general terms, the effective quantum yield (phi(PSII)) and the fraction of open PSII reaction centres (q(L)) were higher in rose plants grown at cold solution. These effects can be associated to a higher NO3- uptake and total N concentration in the plants and were modulated by irradiance throughout all the experiment. Plants could adapt to cold solution by enhancing their metabolism without a decrease in total dry biomass. Nevertheless. the effect of nutrient solution temperature is not simple and also affected by climatic factors. 2017-06-01T10:11:21Z 2017-06-01T10:11:21Z 2008 SEP article Calatayud, Angeles, Gorbe, Elisa, Roca, D., Martinez, P.F. (2008). Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+), concentration and chlorophyll a fluorescence in rose plants. Environmental and experimental botany, 64(1), 65-74. 0098-8472 http://hdl.handle.net/20.500.11939/4923 10.1016/j.envexpbot.2008.02.003 en openAccess PERGAMON-ELSEVIER SCIENCE LTD Impreso |
| spellingShingle | chlorophyll a fluorescence nitrate reductase nitrate uptake rose root temperature ROOT-ZONE TEMPERATURE SOIL-TEMPERATURE GREENHOUSE ROSES TROPICAL CONDITIONS AIR-TEMPERATURE NITROGEN UPTAKE GAS-EXCHANGE XYLEM SAP GROWTH LEAVES Calatayud, Ángeles Gorbe, Elisa Roca, Dolors Martínez, Pedro F. Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants |
| title | Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants |
| title_full | Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants |
| title_fullStr | Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants |
| title_full_unstemmed | Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants |
| title_short | Effect of two nutrient solution temperatures on nitrate uptake, nitrate reductase activity, NH4(+) concentration and chlorophyll a fluorescence in rose plants |
| title_sort | effect of two nutrient solution temperatures on nitrate uptake nitrate reductase activity nh4 concentration and chlorophyll a fluorescence in rose plants |
| topic | chlorophyll a fluorescence nitrate reductase nitrate uptake rose root temperature ROOT-ZONE TEMPERATURE SOIL-TEMPERATURE GREENHOUSE ROSES TROPICAL CONDITIONS AIR-TEMPERATURE NITROGEN UPTAKE GAS-EXCHANGE XYLEM SAP GROWTH LEAVES |
| url | http://hdl.handle.net/20.500.11939/4923 |
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