Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.)

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Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.). / Ghanem, Michel Edmond; Martinez-Andujar, Cristina; Albacete, Alfonso et al.
In: Journal of Plant Growth Regulation, Vol. 30, No. 2, 06.2011, p. 144-157.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Ghanem, ME, Martinez-Andujar, C, Albacete, A, Pospisilova, H, Dodd, IC, Perez-Alfocea, F & Lutts, S 2011, 'Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.)', Journal of Plant Growth Regulation, vol. 30, no. 2, pp. 144-157. https://doi.org/10.1007/s00344-010-9178-4

APA

Ghanem, M. E., Martinez-Andujar, C., Albacete, A., Pospisilova, H., Dodd, I. C., Perez-Alfocea, F., & Lutts, S. (2011). Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.). Journal of Plant Growth Regulation, 30(2), 144-157. https://doi.org/10.1007/s00344-010-9178-4

Vancouver

Ghanem ME, Martinez-Andujar C, Albacete A, Pospisilova H, Dodd IC, Perez-Alfocea F et al. Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.). Journal of Plant Growth Regulation. 2011 Jun;30(2):144-157. doi: 10.1007/s00344-010-9178-4

Author

Ghanem, Michel Edmond ; Martinez-Andujar, Cristina ; Albacete, Alfonso et al. / Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.). In: Journal of Plant Growth Regulation. 2011 ; Vol. 30, No. 2. pp. 144-157.

Bibtex

@article{fedd768907e4466bb049cea9c7e78c30,

title = "Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.)",

abstract = "Mixed nitrate/ammonium fertilization can partially alleviate the negative effects of salinity on growth of some plant species compared to all-nitrate or all-ammonium fertilization. To gain insights about the mechanisms involved, tomato (Solanum lycopersicum L. cv Moneymaker) plants were grown hydroponically for 3 weeks with two NO3 (-)/NH4 (+) fertilization regimes (6/0.5 and 5/1.5; N-total = 6.5 mM) in the absence (control) or presence of salt stress (100 mM NaCl). Ammonium enrichment had no effect on growth and other parameters under control conditions. Under salinity, however, ammonium enrichment improved shoot and root biomass by 20% and maintained leaf PSII efficiency close to control levels. These changes were related to higher leaf K+, NO3 (-), and NH4 (+) concentrations and activities of the N-assimilatory enzymes glutamate synthase (GOGAT) and glutamine synthase (GS) in the leaves. Ammonium enrichment also attenuated the salt-induced increase in leaf abscisic acid (ABA) concentration and decrease in leaf concentrations of indole 3-acetic acid (IAA) and the cytokinins trans-zeatin (tZ) and trans-zeatin riboside (tZR). Enhanced cytokinin status was probably due to maintenance of root-to-shoot cytokinin transport and decreased leaf induction of the cytokinin-degrading enzyme cytokinin oxidase/dehydrogenase (CKX) under ammonium-enriched conditions. It is concluded that nitrogen form modifies salinity-induced physiological responses and that these modifications are associated with changes in plant hormone status.",

keywords = "Abscisic acid, Ammonium, Cytokinin, Indole-3-acetic acid, Nitrate, Nitrogen metabolism, Plant hormones, Salt stress, Sodium chloride, Tomato (Solanum lycopersicum L.), trans-Zeatin, trans-Zeatin riboside, PHOSPHOENOLPYRUVATE CARBOXYLASE ACTIVITY, GLUTAMATE-DEHYDROGENASE, NITRATE REDUCTASE, LEAF SENESCENCE, GENE-EXPRESSION, WATER-DEFICIT, ABSCISIC-ACID, XYLEM SAP, SALINITY, PLANTS",

author = "Ghanem, {Michel Edmond} and Cristina Martinez-Andujar and Alfonso Albacete and Hana Pospisilova and Dodd, {Ian C.} and Francisco Perez-Alfocea and Stanley Lutts",

year = "2011",

month = jun,

doi = "10.1007/s00344-010-9178-4",

language = "English",

volume = "30",

pages = "144--157",

journal = "Journal of Plant Growth Regulation",

issn = "0721-7595",

publisher = "Springer New York",

number = "2",

}

RIS

TY - JOUR

T1 - Nitrogen Form Alters Hormonal Balance in Salt-treated Tomato (Solanum lycopersicum L.)

AU - Ghanem, Michel Edmond

AU - Martinez-Andujar, Cristina

AU - Albacete, Alfonso

AU - Pospisilova, Hana

AU - Dodd, Ian C.

AU - Perez-Alfocea, Francisco

AU - Lutts, Stanley

PY - 2011/6

Y1 - 2011/6

N2 - Mixed nitrate/ammonium fertilization can partially alleviate the negative effects of salinity on growth of some plant species compared to all-nitrate or all-ammonium fertilization. To gain insights about the mechanisms involved, tomato (Solanum lycopersicum L. cv Moneymaker) plants were grown hydroponically for 3 weeks with two NO3 (-)/NH4 (+) fertilization regimes (6/0.5 and 5/1.5; N-total = 6.5 mM) in the absence (control) or presence of salt stress (100 mM NaCl). Ammonium enrichment had no effect on growth and other parameters under control conditions. Under salinity, however, ammonium enrichment improved shoot and root biomass by 20% and maintained leaf PSII efficiency close to control levels. These changes were related to higher leaf K+, NO3 (-), and NH4 (+) concentrations and activities of the N-assimilatory enzymes glutamate synthase (GOGAT) and glutamine synthase (GS) in the leaves. Ammonium enrichment also attenuated the salt-induced increase in leaf abscisic acid (ABA) concentration and decrease in leaf concentrations of indole 3-acetic acid (IAA) and the cytokinins trans-zeatin (tZ) and trans-zeatin riboside (tZR). Enhanced cytokinin status was probably due to maintenance of root-to-shoot cytokinin transport and decreased leaf induction of the cytokinin-degrading enzyme cytokinin oxidase/dehydrogenase (CKX) under ammonium-enriched conditions. It is concluded that nitrogen form modifies salinity-induced physiological responses and that these modifications are associated with changes in plant hormone status.

AB - Mixed nitrate/ammonium fertilization can partially alleviate the negative effects of salinity on growth of some plant species compared to all-nitrate or all-ammonium fertilization. To gain insights about the mechanisms involved, tomato (Solanum lycopersicum L. cv Moneymaker) plants were grown hydroponically for 3 weeks with two NO3 (-)/NH4 (+) fertilization regimes (6/0.5 and 5/1.5; N-total = 6.5 mM) in the absence (control) or presence of salt stress (100 mM NaCl). Ammonium enrichment had no effect on growth and other parameters under control conditions. Under salinity, however, ammonium enrichment improved shoot and root biomass by 20% and maintained leaf PSII efficiency close to control levels. These changes were related to higher leaf K+, NO3 (-), and NH4 (+) concentrations and activities of the N-assimilatory enzymes glutamate synthase (GOGAT) and glutamine synthase (GS) in the leaves. Ammonium enrichment also attenuated the salt-induced increase in leaf abscisic acid (ABA) concentration and decrease in leaf concentrations of indole 3-acetic acid (IAA) and the cytokinins trans-zeatin (tZ) and trans-zeatin riboside (tZR). Enhanced cytokinin status was probably due to maintenance of root-to-shoot cytokinin transport and decreased leaf induction of the cytokinin-degrading enzyme cytokinin oxidase/dehydrogenase (CKX) under ammonium-enriched conditions. It is concluded that nitrogen form modifies salinity-induced physiological responses and that these modifications are associated with changes in plant hormone status.

KW - Abscisic acid

KW - Ammonium

KW - Cytokinin

KW - Indole-3-acetic acid

KW - Nitrate

KW - Nitrogen metabolism

KW - Plant hormones

KW - Salt stress

KW - Sodium chloride

KW - Tomato (Solanum lycopersicum L.)

KW - trans-Zeatin

KW - trans-Zeatin riboside

KW - PHOSPHOENOLPYRUVATE CARBOXYLASE ACTIVITY

KW - GLUTAMATE-DEHYDROGENASE

KW - NITRATE REDUCTASE

KW - LEAF SENESCENCE

KW - GENE-EXPRESSION

KW - WATER-DEFICIT

KW - ABSCISIC-ACID

KW - XYLEM SAP

KW - SALINITY

KW - PLANTS

U2 - 10.1007/s00344-010-9178-4

DO - 10.1007/s00344-010-9178-4

M3 - Journal article

VL - 30

SP - 144

EP - 157

JO - Journal of Plant Growth Regulation

JF - Journal of Plant Growth Regulation

SN - 0721-7595

IS - 2

ER -

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