Responses of strawberry leaf photosynthesis, chlorophyll fluorescence and macronutrient contents to elevated CO2

Keutgen, Norbert; Chen, Kai; Lenz, F.

doi:10.1016/s0176-1617(97)80088-0

Cited by 60 publications

(32 citation statements)

References 19 publications

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“…Leaves with excessive accumulation of carbohydrates often exhibit yellowing in association with lower CO 2 assimilation. This has been observed in leaves of both herbaceous plants and trees grown at elevated CO 2 (Cave et al 1981;Wullschleger et al 1992;Keutgen et al 1997;Sicher 1998), in leaves of 'Golden Delicious' apple trees after deblossoming (Schupp et al 1992), in citrus leaves after branch girdling and fruit removal (Schaffer et al 1986), and in transgenic tobacco plants overexpressing yeast invertase in the cell wall (Stitt et al 1991). Although the effect of excessive accumulation of nonstructural carbohydrates on leaf CO 2 assimilation has been well documented, it remains unclear how the down-stream processes that utilize carbohydrates in leaves respond to excessive accumulation of carbohydrates.…”

Section: Introductionmentioning

confidence: 84%

Metabolism of organic acids, nitrogen and amino acids in chlorotic leaves of ‘Honeycrisp’ apple (Malus domestica Borkh) with excessive accumulation of carbohydrates

Wang

Cheng

2010

Planta

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Metabolite profiles and activities of key enzymes in the metabolism of organic acids, nitrogen and amino acids were compared between chlorotic leaves and normal leaves of 'Honeycrisp' apple to understand how accumulation of non-structural carbohydrates affects the metabolism of organic acids, nitrogen and amino acids. Excessive accumulation of non-structural carbohydrates and much lower CO(2) assimilation were found in chlorotic leaves than in normal leaves, confirming feedback inhibition of photosynthesis in chlorotic leaves. Dark respiration and activities of several key enzymes in glycolysis and tricarboxylic acid (TCA) cycle, ATP-phosphofructokinase, pyruvate kinase, citrate synthase, aconitase and isocitrate dehydrogenase were significantly higher in chlorotic leaves than in normal leaves. However, concentrations of most organic acids including phosphoenolpyruvate (PEP), pyruvate, oxaloacetate, 2-oxoglutarate, malate and fumarate, and activities of key enzymes involved in the anapleurotic pathway including PEP carboxylase, NAD-malate dehydrogenase and NAD-malic enzyme were significantly lower in chlorotic leaves than in normal leaves. Concentrations of soluble proteins and most free amino acids were significantly lower in chlorotic leaves than in normal leaves. Activities of key enzymes in nitrogen assimilation and amino acid synthesis, including nitrate reductase, glutamine synthetase, ferredoxin and NADH-dependent glutamate synthase, and glutamate pyruvate transaminase were significantly lower in chlorotic leaves than in normal leaves. It was concluded that, in response to excessive accumulation of non-structural carbohydrates, glycolysis and TCA cycle were up-regulated to "consume" the excess carbon available, whereas the anapleurotic pathway, nitrogen assimilation and amino acid synthesis were down-regulated to reduce the overall rate of amino acid and protein synthesis.

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Section: Introductionmentioning

confidence: 84%

Metabolism of organic acids, nitrogen and amino acids in chlorotic leaves of ‘Honeycrisp’ apple (Malus domestica Borkh) with excessive accumulation of carbohydrates

Wang

Cheng

2010

Planta

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“…Within the range of suitable CO2 concentration for crops, an increase of CO2 concentration results in an increase in net crop photosynthesis (Cure and Acock, 1986;Keutgen et al, 1997) and thereby promotes photosynthate translocation, which directly controls the crop yield and quality (Troughton and Currie, 1977;David et al, 2014). Therefore, in greenhouse horticulture, CO2 enrichment is commonly used to realize high crop productivity (Kawashima et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of Local CO<SUB>2</SUB> Enrichment on Strawberry Cultivation during the Winter Season

Miyoshi

Hidaka

Okayasu

et al. 2017

Environmental Control in Biology

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“…Under mild D, decreases in photosynthesis are generally considered to be the result of reduced availability of CO 2 due to stomatal closure (Mansfield and Davis 1981). However when D is prolonged, a decrease of photosynthesis is controlled by "non-stomatal" mechanisms of gas exchange connected with damages of mesophyll cells, membranes, and chloroplasts, decrease in chlorophyll content, and disturbances in assimilate synthesis and transport (Cornic and Massacci 1996, Giardi et al 1996, Mullet and Whitsitt 1996, Keutgen et al 1997. Limitations of photosynthesis by stomatal as well as non-stomatal mechanisms depend not only on duration and intensity of D-stress but also on plant species, stage of plant development, and leaf age (Kicheva et al 1994).…”

Section: Introductionmentioning

confidence: 99%

Changes of leaf water potential and gas exchange during and after drought in triticale and maize genotypes differing in drought tolerance

Grzesiak¹,

Grzesiak²,

Skoczowski³

2006

Photosynt.

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Influence of drought (D) on changes of leaf water potential (Ψ) and parameters of gas exchange in D-resistant and D-sensitive genotypes of triticale and maize was compared. Soil D (from -0.01 to -2.45 MPa) was simulated by mannitol solutions. At -0.013 MPa significant differences in Ψ, net photosynthetic rate (P N ), transpiration rate (E), stomatal conductance (g s ), and internal CO 2 concentration (C i ) of D-resistant and D-sensitive triticale and maize genotypes were not found. Together with the increase in concentration of the mannitol solution the impact of D on E and g s for D-sensitive genotypes (CHD-12, Ankora) became lower than for the D-resistant ones (CHD-247, Tina). Inversely, impact of D on Ψ was higher in D-sensitive than D-resistant genotypes. From 1 to 3 d of D, a higher decrease in P N was observed in D-resistant genotypes than in the D-sensitive ones. Under prolonged D (5-14 d) and simultaneous more severe D the decrease in P N was lower in D-resistant than in D-sensitive genotypes. Changes in Ψ, P N , E, and g s caused by D in genotypes differing in the drought susceptibility were similar for triticale and maize. Compared to control plants, increase of C i was different for triticale and maize genotypes. Hence one of the physiological reasons of different susceptibility to D between sensitive and resistant genotypes is more efficient protection of tissue water status in resistant genotypes reflected in higher decrease in g s and limiting E compared to the sensitive ones. Other reason, observed in D-resistant genotypes during the recovery from D-stress, was more efficient removal of detrimental effects of D.

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Responses of strawberry leaf photosynthesis, chlorophyll fluorescence and macronutrient contents to elevated CO2

Cited by 60 publications

References 19 publications

Metabolism of organic acids, nitrogen and amino acids in chlorotic leaves of ‘Honeycrisp’ apple (Malus domestica Borkh) with excessive accumulation of carbohydrates

Metabolism of organic acids, nitrogen and amino acids in chlorotic leaves of ‘Honeycrisp’ apple (Malus domestica Borkh) with excessive accumulation of carbohydrates

Effects of Local CO<SUB>2</SUB> Enrichment on Strawberry Cultivation during the Winter Season

Changes of leaf water potential and gas exchange during and after drought in triticale and maize genotypes differing in drought tolerance

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