Future climate alleviates stress impact on grassland productivity through altered antioxidant capacity

Naudts, Kim; Berge, Joke Van den; Farfán, Eduardo B.; Rose, Peter; AbdElgawad, Hamada; Ceulemans, R.; Janssens, Ivan A.; Asard, Han; Nijs, Ivan

doi:10.1016/j.envexpbot.2013.11.003

Cited by 49 publications

(33 citation statements)

References 61 publications

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“…The influence of high [CO 2 ] on other enzymes such as ADP-Glucose pyrophosphorylase, sucrose phosphate synthase, rubisco activase and PEPCase, in regulating carbon assimilation has also been studied. Increased activities of these enzymes resulted in higher levels of nonstructural carbohydrates including glucose, sucrose, fructose and starch (Makino and Mae, 1999;Davey et al, 2006;Fukayama et al, 2009;Ribeiro et al, 2012;AbdElgawad et al, 2014). The availability of additional photosynthates facilitates plants to grow faster under high [CO 2 ].…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…oxidative pressure (Farfan-Vignolo and Asard, 2012;Naudts et al, 2014;Zinta et al, 2014 Phosphorous being a major constituent of nucleic acid (about 40-60% P in the cell), P deficiency affects RNA synthesis and protein synthesis, and thus inhibits metabolism including photosynthesis. Optimum photosynthesis requires 2.0-2.5 mM P is required in the chloroplast.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…Many experiments have been carried out to study the responses of plants to high [CO 2 ] at various levels ranging from the ecosystem to the genome (e.g. Ainsworth and Long 2005;Luo et al, 2006;Teng et al, 2006;Niu et al, 2011;Dieleman et al, 2012;AbdElgawad et al, 2014;Zinta et al, 2014). Such studies revealed that elevated [CO 2 ] increases plant growth and crop yield by the stimulation of carboxylation and suppression of oxygenation activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) particularly in C3 plants, whereas the effects are marginal in C4 plants because Rubisco is already saturated at ambient [CO 2 ] (reviewed by Bowes 1991;Ghannoum et al, 2003;Feng et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Physiological and molecular alterations in plants exposed to high [CO2] under phosphorus stress

Pandey

Zinta

AbdElgawad

et al. 2015

Biotechnology Advances

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Physiological and molecular alterations in plants exposed to high [CO 2 ] under phosphorus stress, Biotechnology Advances (2015Advances ( ), doi: 10.1016Advances ( /j.biotechadv.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. This is the author's version of a work that was accepted for publication in Biotechnology Advances (Ed. Elsevier). Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Pandey, Renu et al. Fax: +91-11-25846420] has increased substantially in recent decades and will continue to do so, whereas the availability of phosphorus (P) is limited and unlikely to increase in the future. P is a non-renewable resource, and it is essential to every form of life. P is a key plant nutrient controlling the responsiveness of photosynthesis to [CO 2 ]. Increases in [CO 2 ] typically results in increased biomass through stimulation of net photosynthesis, and hence enhance the demand for P uptake. However, most soils contain low concentrations of available P.Therefore, low P is one of the major growth-limiting factors for plants in many agricultural and natural ecosystems. The adaptive responses of plants to [CO 2 ] and P availability encompass alterations at morphological, physiological, biochemical and molecular levels. In general low P reduces growth, whereas high [CO 2 ] enhances it particularly in C 3 plants. Photosynthetic capacity is often enhanced under high [CO

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Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physiological and molecular alterations in plants exposed to high [CO2] under phosphorus stress

Pandey

Zinta

AbdElgawad

et al. 2015

Biotechnology Advances

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“…The consistent patterns of Chl(a+b), Car and the Chl(a+b)/Car ratio were likely due to the lower rate of loss of Car than of Chl(a+b), which reflects an adaptive strategy because carotenoid plays an important role in photoprotection and antioxidation (Ebrahimiyan et al, 2013; Zhang et al, 2013). The information about increased antioxidant capacity under different stresses has been reported largely (Naudts et al, 2014; Xu et al, 2014, 2015). Decrease in antenna pigments such as Chl b suggested that plants experienced a process of antenna size readjustment.…”

Section: Discussionmentioning

confidence: 99%

Small-Scale Habitat-Specific Variation and Adaptive Divergence of Photosynthetic Pigments in Different Alkali Soils in Reed Identified by Common Garden and Genetic Tests

Tian

Jiang

et al. 2017

Front. Plant Sci.

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Flexibility of photosynthetic pigment traits is an important adaptive mechanism through which plants can increase mean fitness in a variable environment. Unlike morphological traits in plants, photosythesis has been shown to exhibit phenotypic plasticity, responding rapidly to environmental conditions. Meanwhile, local adaptation at small scales is considered to be rare. Thus, detecting the small-scale adaptive divergence of photosynthetic pigments presents a challenge. Leaf concentrations of photosynthetic pigments under stressful conditions may be reduced or maintained. Concentrations of some pigments and/or ratio of Chlorophyll a (Chla) to Chlorophyll b (Chlb) do not change markedly in some species, such as the common reed, Phragmites australis, a cosmopolitan grass and common invader. Little is known about photosynthetic responses of this plant to varying levels of alkali salt. Few studies have attempted to account for the relationship between pigment accumulation and leaf position in wild plant populations in grasslands. In this study, photosynthetic pigment concentrations and the total Chl(a+b)/Car ratio decreased as the growing season progressed and were shown to be significantly lower in the habitat with a higher soil pH value and less moisture when compared between habitats. The Chla/Chlb ratio did not differ significantly between habitats, although it increased significantly over time. Leaves in the middle position may be functionally important in the response to soil conditions because only pigment concentrations and the Chl(a+b)/Car ratio of those leaves varied between habitats significantly. The outlier loci, used to evaluate molecular signatures of selection, were detected by Arlequin, Bayescan, and Bayenv analyses. In the simulated habitats of common garden, the local genotypes had higher values of Chla, Chlb, Chl(a+b), Car in their home habitat than did genotypes originating from the other habitat. QST–FST comparisons provided evidence of divergent selection. It appears likely that soil moisture, pH and electric conductivity drove local adaptation. Combined approaches that utilize information on phenotypes from field and common garden experiments, genome-wide markers, and environmental data will be the most informative for understanding the adaptive nature of the intraspecific divergence.

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“…The accumulation of APX and other defencerelated proteins in spring wheat grains under elevated CO 2 was also reported by Qiu et al (2008) and Högy et al (2009b). In plants, SOD and APX are two of the main ROS-scavenging enzymes, and constitute a highly efficient system for removing (Cheeseman 2006;Qiu et al 2008;Naudts et al 2014). This increased oxidative stress under elevated CO 2 might be due to increased canopy temperatures (Kimball et al 1999;Högy et al 2009b).…”

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confidence: 88%

Elevated field atmospheric CO2 concentrations affect the characteristics of winter wheat (cv. Bologna) grains

Verrillo

Badeck²,

Terzi³

et al. 2017

Crop Pasture Sci.

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Abstract. The aim of this study was to investigate the impact of elevated concentration of carbon dioxide (CO 2 ), as expected over coming decades, on yield and quality of winter bread wheat (Triticum aestivum L.). Plants (cv. Bologna) were grown by using the free-air CO 2 enrichment (FACE) system at Fiorenzuola d'Arda under ambient (control) and elevated (570 ppm, e[CO 2 ]) CO 2 concentrations for two growing seasons. We addressed whether there would be a response of wheat grains to elevated CO 2 concentration in terms of the contents of nitrogen (N), micro-and macronutrients, proteins and free amino acids. Under e[CO 2 ], total wheat biomass and grain yield increased in both years of the study. Grain N percentage was reduced under e[CO 2 ], but grain N yield (kg ha -1 ) was increased. Among macro-and micronutrients, a decrease in zinc concentration was observed. The proteome pattern was significantly different in grains grown at the two different CO 2 levels, but the observed changes were highly dependent on interactions with prevailing environmental conditions. Finally, a negative trend was observed in the early germination rates of seeds from plants grown under e[CO 2 ] compared with the controls. The results suggest that the expected increase in CO 2 levels and their interactive effects with environmental variables may influence agronomic performance by increasing yield and negatively affecting quality.

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Future climate alleviates stress impact on grassland productivity through altered antioxidant capacity

Cited by 49 publications

References 61 publications

Physiological and molecular alterations in plants exposed to high [CO2] under phosphorus stress

Physiological and molecular alterations in plants exposed to high [CO2] under phosphorus stress

Small-Scale Habitat-Specific Variation and Adaptive Divergence of Photosynthetic Pigments in Different Alkali Soils in Reed Identified by Common Garden and Genetic Tests

Elevated field atmospheric CO2 concentrations affect the characteristics of winter wheat (cv. Bologna) grains

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