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Short-term interactions between nitrate and iron nutrition in cucumber

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Authors
Nikolic, Miroslav
Cesco, Stefano
Roemheld, Volker
Varanini, Zeno
Pinton, Roberto
Article (Published version)
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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, 402-408
Publisher:
  • Csiro Publishing, Collingwood

DOI: 10.1071/FP07022

ISSN: 1445-4408

PubMed: 32689367

WoS: 000246625000002

Scopus: 2-s2.0-34249101192
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URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/187
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - 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 . .

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