ArticleAnnals of botany2007
Changes in growth and activity of enzymes involved in nitrate reduction and ammonium assimilation in tomato seedlings in response to NaCl stress.
Article in Annals of botany, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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27 citing papers in PubMed, 151 citations in OpenAlex.
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- FERONIA regulates salt tolerance in Arabidopsis by controlling photorespiratory flux.The Plant cell · 2024Article
- Physiological, molecular, and environmental insights into plant nitrogen uptake, and metabolism under abiotic stresses.The plant genome · 2024Review
- Novel Proteins of the High-Affinity Nitrate Transporter Family NRT2, SaNRT2.1 and SaNRT2.5, from the EuhalophyteInternational journal of molecular sciences · 2024Article
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- Roles and Preliminary Mechanism of TobaccoInternational journal of molecular sciences · 2023Article
- Exogenous Calcium Reinforces Photosynthetic Pigment Content and Osmolyte, Enzymatic, and Non-Enzymatic Antioxidants Abundance and Alleviates Salt Stress in Bread Wheat.Plants (Basel, Switzerland) · 2023Article
- Changes in growth, physiology, and photosynthetic capacity of spinach (Spinacia oleracea L.) under different nitrate levels.PloS one · 2023Article
- Comparative Transcriptome Profiling Provides Insights into Plant Salt Tolerance in Watermelon (Life (Basel, Switzerland) · 2022Article
- Nitrogen assimilation and photorespiration become more efficient under chloride nutrition as a beneficial macronutrient.Frontiers in plant science · 2022Article
- The apple GARP family gene MdHHO3 regulates the nitrate response and leaf senescence.Frontiers in plant science · 2022Article
- Plastidial Expression of 3β-Hydroxysteroid Dehydrogenase and Progesterone 5β-Reductase Genes Confer Enhanced Salt Tolerance in Tobacco.International journal of molecular sciences · 2021Article
- Morphological, Physiological and Molecular Markers for Salt-Stressed Plants.Plants (Basel, Switzerland) · 2021Review
- Reduction of Nitrate Content in Baby-Leaf Lettuce andFrontiers in plant science · 2021Article
- Comparative Study of the Effects of Salinity on Growth, Gas Exchange, N Accumulation and Stable Isotope Signatures of Forage Oat (Plants (Basel, Switzerland) · 2020Article
- Nitrogen Assimilation in the Highly Salt- and Boron-Tolerant EcotypePlants (Basel, Switzerland) · 2020Article
- Article
- The effects of magnetic treatment on nitrogen absorption and distribution in seedlings of Populus × euramericana 'Neva' under NaCl stress.Scientific reports · 2019Article
- Using Tomato Recombinant Lines to Improve Plant Tolerance to Stress Combination Through a More Efficient Nitrogen Metabolism.Frontiers in plant science · 2019Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsIn Tunisia, salt water is largely used for tomato irrigation. In this work, a study was made of the changes in the nitrate reduction and ammonium assimilation into amino acids in tomato seedlings under salinity in order to providee further insight into the salt effects on plant growth. Methods Ten-day-old tomatoes (Solanum lycopersicum) were subjected to 100 mm NaCl stress, and nitrogen metabolism in leaves and roots was studied. KEY
resultsThe concentrations of Na+ and Cl- rapidly increased in the leaves and in the roots following exposure of tomato seedlings to NaCl stress. In contrast, the NO3- concentrations were lowered first in the roots and later in the leaves. From 5 to 10 d of treatment, salt ions provoked a decrease in the dry weight and an increase in the NH4+ concentrations in the leaves. Inhibition was observed in the leaves for the activities of nitrate reductase (NR, EC 1.6.6.1), ferredoxin-dependent glutamate synthase (Fd-GOGAT, EC 1.4.7.1) and deaminating glutamate dehydrogenase (NAD-GDH, EC 1.4.1.2). NaCl affected these enzyme activities less in the roots than in leaves. This was in accordance with the pronounced decrease of dry weight by salt in leaves compared with that in the roots.
conclusionsNaCl stress effects on growth, metabolite concentrations and enzyme activities depended on the duration of salt treatment and the plant tissue.
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