Accounting for the effect of temperature in clarifying the response of foliar nitrogen isotope ratios to atmospheric nitrogen deposition

Chen, Chongjuan; Li, Jiazhu; Wang, Guoan; Shi, Minrui

doi:10.1016/j.scitotenv.2017.06.088

Cited by 5 publications

(2 citation statements)

References 46 publications

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“…Such a leakage led to the enrichment of the proportion of N-containing substances with larger δ 15 N values according to general isotope effects [48]. In addition, plants react to O 3 stress by narrowing their stomatal openings at the following growth stages, N fixation is changed from the air more towards the soil, which has higher δ 15 N values compared with N in the air [49]. The correlation coefficient of -0.48 for δ 15 N with the g s in Mongibello could verify this inference (Figure 3).…”

Section: δ 15 N Valuesmentioning

confidence: 99%

The Effects of Elevated Tropospheric Ozone on Carbon Fixation and Stable Isotopic Signatures of Durum Wheat Cultivars with Different Biomass and Yield Stability

Chen

Cotrozzi

et al. 2022

Plants

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Tropospheric ozone (O3) enrichment caused by human activities can reduce important crop yields with huge economic loss and affect the global carbon cycle and climate change in the coming decades. In this study, two Italian cultivars of durum wheat (Claudio and Mongibello) were exposed to O3 (80 ppb, 5 h day−1 for 70 consecutive days), with the aim to investigate the changes in yield and biomass, ecophysiological traits, and stable carbon and nitrogen isotope values in plants, and to compare the stable isotope responses under environmental stressors. Both cultivars showed a relative O3 tolerance in terms of photosynthetic performance, but in cultivar Mongibello, O3 was detrimental to the grain yield and plant biomass. The δ13C values in the leaves of plants identified that the impact of O3 on CO2 fixation by RuBisCO was dominant. The δ15N value showed significant differences between treatments in both cultivars at seven days from the beginning of the exposure, which could be considered an early indicator of ozone pollution. Under increasingly frequent extreme climates globally, the relationships among stable isotope data, ecophysiological traits, and agronomic parameters could help breed future cultivars.

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Section: δ 15 N Valuesmentioning

confidence: 99%

The Effects of Elevated Tropospheric Ozone on Carbon Fixation and Stable Isotopic Signatures of Durum Wheat Cultivars with Different Biomass and Yield Stability

Chen

Cotrozzi

et al. 2022

Plants

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“…The relationships between leaf δ 15 N and leaf metallic nutrients at plant functional group level were examined, considering considerable differences of leaf δ 15 N and leaf metallic nutrients across plant functional groups (Chen et al, 2017;Han et al, 2011;Tan et al, 2019). Leaf δ 15 N in herbs, annual herbs and perennial herbs positively correlates to leaf K (all P < 0.001), whereas leaf δ 15 N in woody plants did not relate to leaf K (P > 0.05) (Fig.…”

Section: Relationships Between Leaf δ 15 N and Leaf Metallic Nutrientmentioning

confidence: 99%

Relationships between leaf δ15N and leaf metallic nutrients

Chen

Wang

et al. 2019

Preprint

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Abstract. Metallic nutrients play a vital role in plant physiological and biochemical processes such as nitrogen uptake and assimilation, which cause isotopic fractionation against 15N. Thus, investigating the relationships between leaf nitrogen isotope ratio (&#948;15N) and leaf metallic nutrients could enhance our understanding of nitrogen (N) cycling. However, to our knowledge, these relationships have not been examined as yet. To fill in this research gap, we analyzed leaf &#948;15N and leaf potassium (K), Calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn) and zinc (Zn) contents of 624 non-N2-fixing plant samples and revealed the relationships between leaf &#948;15N and these metallic elements. Overall, leaf &#948;15N correlated positively with leaf K, Ca, Mg and Zn, and negatively with leaf Fe, whereas not with leaf Mn. The relationships of leaf &#948;15N with leaf K, Ca, Mg, Zn and Fe were not affected by both vegetation type and soil type, suggesting that the observed relationships could be universally valid. However, the relationship between leaf &#948;15N and leaf Mn depended on vegetation type and soil type, therefore, the observed relationship should not be considered to be universal. These metallic nutrients together accounted for 55.7&#8201;% of the variations in leaf &#948;15N; this emphasized the significance of metallic nutrients in determining leaf &#948;15N.

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Topographical influences on foliar nitrogen concentration and stable isotope composition in a Mediterranean-climate catchment

Guan

Skrzypek

et al. 2022

Ecological Informatics

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Accounting for the effect of temperature in clarifying the response of foliar nitrogen isotope ratios to atmospheric nitrogen deposition

Cited by 5 publications

References 46 publications

The Effects of Elevated Tropospheric Ozone on Carbon Fixation and Stable Isotopic Signatures of Durum Wheat Cultivars with Different Biomass and Yield Stability

The Effects of Elevated Tropospheric Ozone on Carbon Fixation and Stable Isotopic Signatures of Durum Wheat Cultivars with Different Biomass and Yield Stability

Relationships between leaf δ<sup>15</sup>N and leaf metallic nutrients

Topographical influences on foliar nitrogen concentration and stable isotope composition in a Mediterranean-climate catchment

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Accounting for the effect of temperature in clarifying the response of foliar nitrogen isotope ratios to atmospheric nitrogen deposition

Cited by 5 publications

References 46 publications

The Effects of Elevated Tropospheric Ozone on Carbon Fixation and Stable Isotopic Signatures of Durum Wheat Cultivars with Different Biomass and Yield Stability

The Effects of Elevated Tropospheric Ozone on Carbon Fixation and Stable Isotopic Signatures of Durum Wheat Cultivars with Different Biomass and Yield Stability

Relationships between leaf δ&lt;sup&gt;15&lt;/sup&gt;N and leaf metallic nutrients

Topographical influences on foliar nitrogen concentration and stable isotope composition in a Mediterranean-climate catchment

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Relationships between leaf δ<sup>15</sup>N and leaf metallic nutrients