A review on nitrogen allocation in leaves and its effect factors

Zuomin, 史作民 Shi; Jingchao, 唐敬超 Tang; Ruimei, 程瑞梅 Cheng; Da, 罗达 Luo; Shirong, 刘世荣 Liu

doi:10.5846/stxb201401240184

Cited by 3 publications

(3 citation statements)

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“…In addition, Kentucky bluegrass uptakes soil nitrogen to supply plant growth, and the soil nitrogen can be gradually consumed with the increase in plantation age (Han et al, 2019). The decrease in soil nitrogen concentration is insufficient to meet plant requirements, leading to a decrease in leaf nitrogen concentration (Shi et al, 2015;Wang C. et al, 2023) when plantation age is below 6 years. However, when the plantation age is over 6 years, the accumulation of plant residues gradually increases soil nitrogen, and this added nitrogen can be released into the soil again (Hu et al, 2019;Zhang et al, 2021), which can provide relatively sufficient soil nitrogen for plant uptake, leading to an increase in leaf N when plantation age ranges from 6 to 9 years.…”

Section: Discussionmentioning

confidence: 99%

Effect of plantation age on plant and soil C:N:P stoichiometry in Kentucky bluegrass pastures

Wei,

He,

Wang

et al. 2024

Front. Sustain. Food Syst.

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Plant and soil C:N:P stoichiometry reflects the element content and energy flow, which are important for biogeochemical cycling in ecosystems. Although plantation age has been verified to affect leaf C:N:P stoichiometry in alfalfa plants, its effect on plant and soil C:N:P stoichiometry in grass remains poorly documented. A 10-year field experiment of Kentucky bluegrass (Poa pratensis) was used to test how plantation age affect plant and soil C:N:P stoichiometry in a perennial rhizomatous grass pasture. This study demonstrated that leaf C:N, C:P, and N:P ratios exhibited a rapid increasing trend from 2 to 6 years of age, whereas leaf C:N showed a slight decreasing trend, and leaf C:P and N:P maintained stability from 6 to 9 years of age. Stem C:N and N:P were not different among plantation ages, while stem C:P increased from 2 to 4 years of plantation age and then maintained stability from 4 to 9 years of plantation age. Root N:P showed an increasing trend from 2 to 6 years of plantation age and relative stability from 6 to 9 years of plantation age, whereas root C:N and C:P showed decreasing trends from 2 to 9 years of plantation age. Although soil C:P did not differ among nine plantation ages, soil C:N and N:P remained relatively stable from 2 to 6 years of plantation age. However, soil C:N showed a decreasing trend, while soil N:P showed an increasing trend after 6 years of plantation age. The results from an ecological stoichiometric homeostasis analysis further showed that N in the leaf, stem, and root and P in the stem had strict homeostasis, whereas P in the leaf and root showed plastic and weakly homeostatic status, respectively. These results present a pattern concerning the plantation age in relation to plant and soil C:N:P stoichiometry in a perennial grass and provide useful information for N and P management in Kentucky bluegrass pastures.

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Section: Discussionmentioning

confidence: 99%

Effect of plantation age on plant and soil C:N:P stoichiometry in Kentucky bluegrass pastures

Wei,

He,

Wang

et al. 2024

Front. Sustain. Food Syst.

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“…Nitrogen deficiency will decrease photosynthetic rate, photosynthetic quantum efficiency, and enzyme activities related to carbon metabolism (Warren et al., 2000; Wei et al., 2016). The deficiency or excess of soil potassium not only reduced chlorophyll, ATP, and Rubisco contents, but also hindered photosynthetic electron transport and photophosphorylation (Shi et al., 2015).…”

Section: Discussionmentioning

confidence: 99%

Seasonal Variations in Leaf Maximum Photosynthetic Capacity and Its Dependence on Climate Factors Across Global FLUXNET Sites

Wang

Chen

et al. 2022

JGR Biogeosciences

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The maximum carboxylation rate (Vcmax) of plant leaves refers to the maximum number of CO 2 moles that can be fixed per unit leaf area per unit time (unit: μmol m −2 s −1 ; Farquhar et al., 1980;Wullschleger, 1993). It determines the maximum net photosynthetic rate of leaves (Amax, maximum net photosynthetic rate), light mitochondrial respiration (Rd, mitochondrial respiration in light), photorespiration, etc (Farquhar et al., 1980;

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“…The C B was calculated as follows (Shi et al., 2015):

\begin{equation}{{C}_{\mathrm{B}}} = \ 1.94\ + \frac{{12.6}}{{{\mathrm{LMA}}}}{\mathrm{\ ,}}\end{equation}

where C B is the ratio of chlorophyll to nitrogen in the light‐harvesting component (mmol Chl (g N) −1 ).

\begin{equation}{{N}_B} = {{N}_A} \times {{P}_B},\end{equation}

\begin{equation}{{N}_C} = {{N}_A} \times {{P}_C},\end{equation}

\begin{equation}{{N}_L} = {{N}_A} \times {{P}_L},\end{equation}

\begin{equation}{{N}_T} = {{N}_A} \times {{P}_T},\end{equation}

where N L was the content of nitrogen in the light‐harvesting protein component (g m −2 ); N B was the content of nitrogen in the electron‐transfer component (g m −2 ); N C was the content of nitrogen in the carboxylation component (g m −2 ); and N T was the total content of nitrogen in the photosynthetic apparatus (g m −2 ).…”

Section: Methodsmentioning

confidence: 99%

Improving nitrogen content in the carboxylation and electron transfer component can boost the reproductive biomass of filmless cotton in arid areas

Li,

Shi

et al. 2024

Crop Science

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Deep drip irrigation combined with high‐density planting is one of the most economical and effective ways to address residual film pollution. This study aimed to explore the photosynthetic potential of and achieve water‐saving and high‐yielding filmless cotton (Gossypium hirsutum L.) by optimizing the irrigation amount. We analyzed the effect of source leaf activity on leaf nitrogen allocation and photosynthetic nitrogen utilization efficiency (PNUE) under different irrigation amounts (mm, 375 (W5), 348 (W4), 320 (W3), 293 (W2), and 265 (W1)) in a 2‐year field experiment under this planting mode. The photosynthetic pigment content, leaf mass per area, and light compensation point all decreased with increasing amounts of irrigation, while the apparent quantum yield of photosynthesis, light saturation point, maximum carboxylation rate (Vcmax), maximum electron transport rate (Jmax), triose phosphate utilization rate (VTPU), nitrogen content in the electron transfer component (NB), and nitrogen content in the carboxylation component (NC) showed opposite trends. At the later full boll stage, the W3 and W4 treatments increased the leaf area of a whole plant (LA) by 10.4% and 19.4%, respectively, compared to that in the W1 treatment, while the PNUE increased by 20.2% and 20.8%, respectively, compared to that in the W5 treatment. In addition, principal component analysis found that the factor variables total nitrogen content in the photosynthetic apparatus (NT), net photosynthetic rate (Pn), stomatal conductance (Gs), light‐saturated net photosynthetic rate (Amax), NC, and Vcmax had higher loadings and were all positively correlated with PNUE; LA had a higher loading and was positively correlated with reproductive organ biomass. Therefore, we recommend using an irrigation rate of 320 mm in this cultivation system to increase nitrogen in carboxylation and electron transport components, enhance photosynthetic capacity, and thereby improve PNUE to increase reproductive organ biomass and reduce the irrigation amount in arid areas.

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A review on nitrogen allocation in leaves and its effect factors

Cited by 3 publications

References 0 publications

Effect of plantation age on plant and soil C:N:P stoichiometry in Kentucky bluegrass pastures

Effect of plantation age on plant and soil C:N:P stoichiometry in Kentucky bluegrass pastures

Seasonal Variations in Leaf Maximum Photosynthetic Capacity and Its Dependence on Climate Factors Across Global FLUXNET Sites

Improving nitrogen content in the carboxylation and electron transfer component can boost the reproductive biomass of filmless cotton in arid areas

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