Photosynthetic characteristics and nitrogen allocation in the black locust (Robinia pseudoacacia L.) grown in a FACE system

Choi, Dongsu; Watanabe, Yoko; Guy, Robert D.; Sugai, Tetsuto; Toda, Hiroto; Koike, Takao

doi:10.1007/s11738-017-2366-0

Cited by 17 publications

(10 citation statements)

References 85 publications

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“…Under high PPFD, WUE improved by the increase in N concentration, which is in line with the results of a previous study on Robinia pseudoacacia 43 . However, according to our data, when PPFD was limited to 75 µmol m −2 s −1 , WUE decreased by raise in N concentration.…”

Section: Discussionsupporting

confidence: 92%

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Esmaeili

Aliniaeifard

Daylami

et al. 2022

Sci Rep

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Identifying environmental factors that improve plant growth and development under nitrogen (N) constraint is essential for sustainable greenhouse production. In the present study, the role of light intensity and N concentrations on the biomass partitioning and physiology of chrysanthemum was investigated. Four light intensities [75, 150, 300, and 600 µmol m−2 s−1 photosynthetic photon flux density (PPFD)] and three N concentrations (5, 10, and 15 mM N L−1) were used. Vegetative and generative growth traits were improved by increase in PPFD and N concentration. High N supply reduced stomatal size and gs in plants under lowest PPFD. Under low PPFD, the share of biomass allocated to leaves and stem was higher than that of flower and roots while in plants grown under high PPFD, the share of biomass allocated to flower and root outweighed that of allocated to leaves and stem. As well, positive effects of high PPFD on chlorophyll content, photosynthesis, water use efficiency (WUE), Nitrogen use efficiency (NUE) were observed in N-deficient plants. Furthermore, photosynthetic functionality improved by raise in PPFD. In conclusion, high PPFD reduced the adverse effects of N deficiency by improving photosynthesis and stomatal functionality, NUE, WUE, and directing biomass partitioning toward the floral organs.

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Section: Discussionsupporting

confidence: 92%

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Esmaeili

Aliniaeifard

Daylami

et al. 2022

Sci Rep

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“…However, there were no differences in the chlorophyll: Rubisco ratio among the CO 2 treatments (Table 1), and chlorophyll were reduced by the effect of eCO 2 (Table 2). In contrast to the findings of our study, other studies have noted an increase in chlorophyll under eCO 2 conditions [65]. In addition, a small decrease in Rubisco content via suppression of Rubisco small subunit (RBC) genes led to increased chlorophyll content under eCO 2 conditions [16].…”

Section: Pnue and N Allocation Under Eco2 Conditions And N Fertilizationcontrasting

confidence: 99%

Down-Regulation of Photosynthesis to Elevated CO2 and N Fertilization in Understory Fraxinus rhynchophylla Seedlings

Byeon

Kim

Hong

et al. 2021

Forests

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(1) Background: Down-regulation of photosynthesis has been commonly reported in elevated CO2 (eCO2) experiments and is accompanied by a reduction of leaf nitrogen (N) concentration. Decreased N concentrations in plant tissues under eCO2 can be attributed to an increase in nonstructural carbohydrate (NSC) and are possibly related to N availability. (2) Methods: To examine whether the reduction of leaf N concentration under eCO2 is related to N availability, we investigated understory Fraxinus rhynchophylla seedlings grown under three different CO2 conditions (ambient, 400 ppm [aCO2]; ambient × 1.4, 560 ppm [eCO21.4]; and ambient × 1.8, 720 ppm [eCO21.8]) and three different N concentrations for 2 years. (3) Results: Leaf and stem biomass did not change under eCO2 conditions, whereas leaf production and stem and branch biomass were increased by N fertilization. Unlike biomass, the light-saturated photosynthetic rate and photosynthetic N-use efficiency (PNUE) increased under eCO2 conditions. However, leaf N, Rubisco, and chlorophyll decreased under eCO2 conditions in both N-fertilized and unfertilized treatments. Contrary to the previous studies, leaf NSC decreased under eCO2 conditions. Unlike leaf N concentration, N concentration of the stem under eCO2 conditions was higher than that under ambient CO2 (4). Conclusions: Leaf N concentration was not reduced by NSC under eCO2 conditions in the understory, and unlike other organs, leaf N concentration might be reduced due to increased PNUE.

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“…The previous studies are mainly focused on linking photosynthesis and leaf nitrogen allocation under eCO 2 (Sharwood et al, 2017). After systematic investigation, we indeed found a lower fraction of nitrogen allocated to Rubisco for eCO 2 -grown plants (Figure S5), which indicates a reallocation of leaf nitrogen from photosynthetic to non-photosynthetic functions (Choi et al, 2017;Lei et al, 2012). However, the contributions of mesophyll conductance and stomatal conductance to eCO 2 -induced decline in PNUE remain to be further explored.…”

Section: Implications For Pnue-driven Photosynthetic Acclimationmentioning

confidence: 76%

Nitrogen use strategy drives interspecific differences in plant photosynthetic CO₂ acclimation

Cui

Xia

Luo

2023

Global Change Biology

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Rising atmospheric CO2 concentration triggers an emergent phenomenon called plant photosynthetic acclimation to elevated CO2 (PAC). PAC is often characterized by a reduction in leaf photosynthetic capacity (Asat), which varies dramatically along the continuum of plant phylogeny. However, it remains unclear whether the mechanisms responsible for PAC are also different across plant phylogeny, especially between gymnosperms and angiosperms. Here, by compiling a dataset of 73 species, we found that although leaf Asat increased significantly from gymnosperms to angiosperms, there was no phylogenetic signal in the PAC magnitude along the phylogenetic continuum. Physio‐morphologically, leaf nitrogen concentration (Nm), photosynthetic nitrogen‐use efficiency (PNUE), and leaf mass per area (LMA) dominated PAC for 36, 29, and 8 species, respectively. However, there was no apparent difference in PAC mechanisms across major evolutionary clades, with 75% of gymnosperms and 92% of angiosperms regulated by the combination of Nm and PNUE. There was a trade‐off between Nm and PNUE in driving PAC across species, and PNUE dominated the long‐term changes and inter‐specific differences in Asat under elevated CO2. These findings indicate that nitrogen‐use strategy drives the acclimation of leaf photosynthetic capacity to elevated CO2 across terrestrial plant species.

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Photosynthetic characteristics and nitrogen allocation in the black locust (Robinia pseudoacacia L.) grown in a FACE system

Cited by 17 publications

References 85 publications

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Down-Regulation of Photosynthesis to Elevated CO2 and N Fertilization in Understory Fraxinus rhynchophylla Seedlings

Nitrogen use strategy drives interspecific differences in plant photosynthetic CO₂ acclimation

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Photosynthetic characteristics and nitrogen allocation in the black locust (Robinia pseudoacacia L.) grown in a FACE system

Cited by 17 publications

References 85 publications

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Down-Regulation of Photosynthesis to Elevated CO2 and N Fertilization in Understory Fraxinus rhynchophylla Seedlings

Nitrogen use strategy drives interspecific differences in plant photosynthetic CO2 acclimation

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Nitrogen use strategy drives interspecific differences in plant photosynthetic CO₂ acclimation