The role of nitrogen in photosynthetic acclimation to elevated [CO2] in tomatoes

Halpern, Moshe; Bar‐Tal, Asher; Lugassi, Nitsan; Egbaria, Aiman; Granot, David; Yermiyahu, Uri

doi:10.1007/s11104-018-3857-5

Cited by 39 publications

(37 citation statements)

References 37 publications

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“…In this study, [P] in moderate and high N supplies was decreased in higher [CO 2 ] levels at T1 stage, and was significantly decreased in roots and stems with the increasing N supply (Figure 3). The similar results were also found in tomatoes [17], beans [56], and soybeans [57]. This decrease of [P] in elevated [CO 2 ] especially associated with higher N supplies has been considered as the result of the dilution effect [10,17].…”

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumberssupporting

confidence: 79%

“…In the present work, only the [N] in leaves was significantly decreased by 6.1-9.3% in super-elevated [CO 2 ] treatment, whereas [N] in stems and roots were not influenced by [CO 2 ] levels (Figures 2 and 7). Therefore, the dilution effect is not the only cause of [ [17,19,21,22,55]. In the present work, a significant positive correlation between [N] and Tr, especially in leaves, also gave convincing evidence for this reason (Figure 7).…”

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumberssupporting

confidence: 77%

“…The similar results were also found in tomatoes [17], beans [56], and soybeans [57]. This decrease of [P] in elevated [CO 2 ] especially associated with higher N supplies has been considered as the result of the dilution effect [10,17]. When the larger biomass was accumulated in higher N supplies and elevated [CO 2 ] conditions, [P] in plants will decease if the P supply was not changed [20].…”

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumberssupporting

confidence: 74%

“…A possible reason is that the [N] in leaves treated with high N supplies was still enough for guaranteeing the RuBP regeneration and Rubisco activity to match the increased C-fixation [10,46]. These results also confirmed that increasing N supply could alleviate or prevent the photosynthetic acclimation under elevated [CO 2 ] condition and ensure the sustainability of the [CO 2 ] enrichment fertilization effects on crop growth [15][16][17]33].…”

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumbersmentioning

confidence: 52%

“…The main reason was the increased photosynthates and accumulated carbohydrates in plant tissues under elevated CO 2 concentrations ([CO 2 ]), which decreased the nitrogen to carbon ratio (N/C) and caused the imbalance between source and sink [7,13,14]. To deal with this problem, many researchers recommended higher N fertilization to minimize the reduction in N/C associated with high [CO 2 ] conditions [15][16][17]. However, when the dry matter accumulation outpaces N uptake, enriched CO 2 will still reduce N concentrations ([N]) in plants even if N uptake is enhanced by higher N supply [18].…”

Section: Introductionmentioning

confidence: 99%

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Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Dong

Gruda

et al. 2020

Agronomy

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The concentration changes of mineral elements in plants at different CO2 concentrations ([CO2]) and nitrogen (N) supplies and the mechanisms which control such changes are not clear. Hydroponic trials on cucumber plants with three [CO2] (400, 625, and 1200 μmol mol−1) and five N supply levels (2, 4, 7, 14, and 21 mmol L−1) were conducted. When plants were in high N supply, the increase in total biomass by elevated [CO2] was 51.7% and 70.1% at the seedling and initial fruiting stages, respectively. An increase in net photosynthetic rate (Pn) by more than 60%, a decrease in stomatal conductance (Gs) by 21.2–27.7%, and a decrease in transpiration rate (Tr) by 22.9–31.9% under elevated [CO2] were also observed. High N supplies could further improve the Pn and offset the decrease of Gs and Tr by elevated [CO2]. According to the mineral concentrations and the correlation results, we concluded the main factors affecting these changes. The dilution effect was the main factor driving the reduction of all mineral elements, whereas Tr also had a great impact on the decrease of [N], [K], [Ca], and [Mg] except [P]. In addition, the demand changes of N, Ca, and Mg influenced the corresponding element concentrations in cucumber plants.

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Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumberssupporting

confidence: 79%

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumberssupporting

confidence: 77%

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumberssupporting

confidence: 74%

Section: Impacts Of [Co 2 ] and N Supply On The Growth Of Cucumbersmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Dong

Gruda

et al. 2020

Agronomy

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Warm root‐zone temperature ensures the mineral concentrations in cucumber plants under elevated [CO₂] by improving the migration pathways of mineral elements from the soil to plants

Dong

et al. 2023

J. Plant Nutr. Soil Sci.

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Background:The mineral nutrient concentrations in plants are usually decreased under elevated CO 2 concentration ([CO 2 ]), while warm root-zone temperature (RZT) can improve plant growth and the absorption of mineral nutrients in plants. Aims:The effects of RZT on the growth and mineral nutrient concentrations in cucumber (Cucumis sativus L.) plants were investigated under different [CO 2 ] levels. Methods: A soil-cultured pot experiment was carried out on cucumber plants under two [CO 2 ] levels (ambient and elevated) and two RZT levels (cold and warm) in four open-top chambers. Results: Although elevated [CO 2 ] promoted root growth, it did not counteract the decrease in the concentration of nitrogen ([N]), potassium ([K]), calcium ([Ca]), and magnesium ([Mg]) in cucumber plants due to the decreased mass flow indicated by the decreased transpiration rate (Tr) under cold RZT. In comparison, warm RZT increased the [N], [K], [Ca], and [Mg] in cucumber plants under elevated [CO 2 ], attributed to a higher Tr and better root growth. In addition, the concentration of phosphorus ([P]), iron ([Fe]), manganese ([Mn]), and zinc ([Zn]) in cucumber plants was maintained or increased under elevated [CO 2 ] by the promoted root growth related to interception by warm RZT. Conclusions: Under elevated [CO 2 ], warm RZT could ensure the [N], [K], [Ca], and [Mg] in cucumber plants mainly by increasing the Tr and improving the root growth. Whereas warm RZT maintained or increased [P], [Fe], [Mn], and [Zn] primarily relied on the improved interception as indicated by the better root growth.

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CO2 and nitrogen interaction alters root anatomy, morphology, nitrogen partitioning and photosynthetic acclimation of tomato plants

Cohen

Halpern

Yermiyahu

et al. 2019

Planta

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The role of nitrogen in photosynthetic acclimation to elevated [CO2] in tomatoes

Cited by 39 publications

References 37 publications

Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Warm root‐zone temperature ensures the mineral concentrations in cucumber plants under elevated [CO₂] by improving the migration pathways of mineral elements from the soil to plants

CO2 and nitrogen interaction alters root anatomy, morphology, nitrogen partitioning and photosynthetic acclimation of tomato plants

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The role of nitrogen in photosynthetic acclimation to elevated [CO2] in tomatoes

Cited by 39 publications

References 37 publications

Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Interactive Effects of the CO2 Enrichment and Nitrogen Supply on the Biomass Accumulation, Gas Exchange Properties, and Mineral Elements Concentrations in Cucumber Plants at Different Growth Stages

Warm root‐zone temperature ensures the mineral concentrations in cucumber plants under elevated [CO2] by improving the migration pathways of mineral elements from the soil to plants

CO2 and nitrogen interaction alters root anatomy, morphology, nitrogen partitioning and photosynthetic acclimation of tomato plants

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Product

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Warm root‐zone temperature ensures the mineral concentrations in cucumber plants under elevated [CO₂] by improving the migration pathways of mineral elements from the soil to plants