Short-term interactions between nitrate and iron nutrition in cucumber
Abstract
Cucumber (Cucumis sativus L.) plants were precultured for 7 days in either optimal (10 mu M) or low (0.5 mu M) Fe conditions and then grown for further 5 days in a N-free nutrient solution with (+Fe) or without (-Fe) 10 mu M Fe. Thereafter NO(3)(-) (4mM) was added to the nutrient solution for 24 h and, concomitantly, half of the -Fe plants were treated with 1 mu M Fe complexed to water extractable humic substances (WEHS). Supply of NO(3)(-) to + Fe-N-deprived plants caused a large induction in the capacity to take up the anion by roots, which was accompanied by a rise in root-shoot NO(3)(-) concentration. The -Fe plants showed a lower level of induction of NO(3)(-) uptake and hence a lower accumulation of the anion in the tissues, these effects being reversed by supply of Fe-WEHS. Supply of either NO(3)(-) - or NH(4)(+) -N (+/-Fe-WEHS) to -Fe plants promoted the development of the root Fe(III)-chelate reductase activity, but the capacity of roots to take up the Fe(2+) remained unaffect...ed. Results show that an inadequate Fe supply can limit the acquisition of NO(3)(-), whereas NO(3)(-) supply can affect Fe uptake by influencing the development and maintenance of a high Fe(III)-chelate reducing capacity.
Keywords:
uptake / humates / ferric chelate reductase / Fe deficiency / Cucumis sativus L.Source:
Functional Plant Biology, 2007, 34, 5, 402-408Publisher:
- Csiro Publishing, Collingwood
DOI: 10.1071/FP07022
ISSN: 1445-4408
PubMed: 32689367
WoS: 000246625000002
Scopus: 2-s2.0-34249101192
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Institution/Community
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Nikolic, Miroslav AU - Cesco, Stefano AU - Roemheld, Volker AU - Varanini, Zeno AU - Pinton, Roberto PY - 2007 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/187 AB - Cucumber (Cucumis sativus L.) plants were precultured for 7 days in either optimal (10 mu M) or low (0.5 mu M) Fe conditions and then grown for further 5 days in a N-free nutrient solution with (+Fe) or without (-Fe) 10 mu M Fe. Thereafter NO(3)(-) (4mM) was added to the nutrient solution for 24 h and, concomitantly, half of the -Fe plants were treated with 1 mu M Fe complexed to water extractable humic substances (WEHS). Supply of NO(3)(-) to + Fe-N-deprived plants caused a large induction in the capacity to take up the anion by roots, which was accompanied by a rise in root-shoot NO(3)(-) concentration. The -Fe plants showed a lower level of induction of NO(3)(-) uptake and hence a lower accumulation of the anion in the tissues, these effects being reversed by supply of Fe-WEHS. Supply of either NO(3)(-) - or NH(4)(+) -N (+/-Fe-WEHS) to -Fe plants promoted the development of the root Fe(III)-chelate reductase activity, but the capacity of roots to take up the Fe(2+) remained unaffected. Results show that an inadequate Fe supply can limit the acquisition of NO(3)(-), whereas NO(3)(-) supply can affect Fe uptake by influencing the development and maintenance of a high Fe(III)-chelate reducing capacity. PB - Csiro Publishing, Collingwood T2 - Functional Plant Biology T1 - Short-term interactions between nitrate and iron nutrition in cucumber EP - 408 IS - 5 SP - 402 VL - 34 DO - 10.1071/FP07022 ER -
@article{ author = "Nikolic, Miroslav and Cesco, Stefano and Roemheld, Volker and Varanini, Zeno and Pinton, Roberto", year = "2007", abstract = "Cucumber (Cucumis sativus L.) plants were precultured for 7 days in either optimal (10 mu M) or low (0.5 mu M) Fe conditions and then grown for further 5 days in a N-free nutrient solution with (+Fe) or without (-Fe) 10 mu M Fe. Thereafter NO(3)(-) (4mM) was added to the nutrient solution for 24 h and, concomitantly, half of the -Fe plants were treated with 1 mu M Fe complexed to water extractable humic substances (WEHS). Supply of NO(3)(-) to + Fe-N-deprived plants caused a large induction in the capacity to take up the anion by roots, which was accompanied by a rise in root-shoot NO(3)(-) concentration. The -Fe plants showed a lower level of induction of NO(3)(-) uptake and hence a lower accumulation of the anion in the tissues, these effects being reversed by supply of Fe-WEHS. Supply of either NO(3)(-) - or NH(4)(+) -N (+/-Fe-WEHS) to -Fe plants promoted the development of the root Fe(III)-chelate reductase activity, but the capacity of roots to take up the Fe(2+) remained unaffected. Results show that an inadequate Fe supply can limit the acquisition of NO(3)(-), whereas NO(3)(-) supply can affect Fe uptake by influencing the development and maintenance of a high Fe(III)-chelate reducing capacity.", publisher = "Csiro Publishing, Collingwood", journal = "Functional Plant Biology", title = "Short-term interactions between nitrate and iron nutrition in cucumber", pages = "408-402", number = "5", volume = "34", doi = "10.1071/FP07022" }
Nikolic, M., Cesco, S., Roemheld, V., Varanini, Z.,& Pinton, R.. (2007). Short-term interactions between nitrate and iron nutrition in cucumber. in Functional Plant Biology Csiro Publishing, Collingwood., 34(5), 402-408. https://doi.org/10.1071/FP07022
Nikolic M, Cesco S, Roemheld V, Varanini Z, Pinton R. Short-term interactions between nitrate and iron nutrition in cucumber. in Functional Plant Biology. 2007;34(5):402-408. doi:10.1071/FP07022 .
Nikolic, Miroslav, Cesco, Stefano, Roemheld, Volker, Varanini, Zeno, Pinton, Roberto, "Short-term interactions between nitrate and iron nutrition in cucumber" in Functional Plant Biology, 34, no. 5 (2007):402-408, https://doi.org/10.1071/FP07022 . .