Elevated CO2 differentially affects the properties of grain from wild and domesticated rice

Rahman, Sayedur; Copeland, Les; Atwell, Brian J.; Roberts, Thomas H.

doi:10.1016/j.jcs.2021.103227

Cited by 6 publications

(5 citation statements)

References 26 publications

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Section: The Effect Of Elevated Co 2 On Grain Yield Was Highly Associ...mentioning

confidence: 61%

“…However, interestingly, although e[CO 2 ] increased the C concentration in leaves and stems, it decreased the C concentration in grain. Similar phenomena are rare, but in rice, it was found that grain C of some rice cultivars at e[CO 2 ] was decreased, as compared with plants grown under a[CO 2 ] ( Rahman et al, 2021). Just as for N, the grain C concentration also depends on the translocation of the carbohydrates from leaves (Roy & Mathur, 2021).…”

Section: Elevated Co 2 Affected the Concentration Of C And N In Diffe...mentioning

confidence: 90%

“…Thousand grain weight (TGW) increased due to e [CO 2 ] across all five wheat cultivars, which is consistent with previous studies (Li, Ulfat, et al, 2019; McKee et al, 2008). The increase in TGW at e [CO 2 ] may be due to increased grain length and/or grain width (Rahman et al, 2021). Meanwhile, it could also indicate a higher concentration of starch in the grains, as starch has a significantly greater density than that of structural polysaccharides and proteins (Fischer et al, 2004), which could partly explain the increase in TGW at e [CO 2 ] (Rahman et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…The increase in TGW at e [CO 2 ] may be due to increased grain length and/or grain width (Rahman et al, 2021). Meanwhile, it could also indicate a higher concentration of starch in the grains, as starch has a significantly greater density than that of structural polysaccharides and proteins (Fischer et al, 2004), which could partly explain the increase in TGW at e [CO 2 ] (Rahman et al, 2021). However, our results showed that e [CO 2 ] had no significant effect on the concentration of grain starch, although a slight increase was observed in the cultivar 30Shannong and 20Shannong at e [CO 2 ], compared with plants grown under a [CO 2 ].…”

Section: Discussionmentioning

confidence: 99%

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Effects of elevated CO₂ on grain yield and quality in five wheat cultivars

Wang

Zhong

et al. 2022

J Agronomy Crop Science

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Elevated atmospheric CO2 concentrations (e[CO2]) have a significant impact on plant physiology, grain yield and quality and the specific response of plants to e[CO2] is closely linked to cultivars. Here, five Chinese wheat (Triticum aestivum L.) cultivars were grown under ambient CO2 (a[CO2], 400 ppm) and e[CO2] (800 ppm). CO2 enrichment significantly increased net photosynthetic rate and water use efficiency but depressed stomatal conductance. e[CO2] increased the carbon (C) concentration but decreased the nitrogen (N) concentration in all five cultivars, whereas the effect of e[CO2] on grain yield was highly dependent on cultivar. Moreover, e[CO2] caused a significant reduction in grain minerals and protein, although the magnitude of reduction was different among these cultivars. The starch concentrations in the grains and flour viscosity were not significantly affected at e[CO2]. These findings improve our understanding of the interactive effect of CO2 conditions and cultivars on plant performances and provide a research basis to select suitable wheat cultivars to deal with food crisis in future climate.

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Section: The Effect Of Elevated Co 2 On Grain Yield Was Highly Associ...mentioning

confidence: 61%

Section: Elevated Co 2 Affected the Concentration Of C And N In Diffe...mentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of elevated CO₂ on grain yield and quality in five wheat cultivars

Wang

Zhong

et al. 2022

J Agronomy Crop Science

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show abstract

“…(2009) revealed that eCO 2 caused enhancements in the levels of non-structural carbohydrates and lipids but decreased the protein content in wheat grains. Elevated CO 2 improved grain size and weight but did not significantly affect its nitrogen and amylose content in wild and domesticated rice genotypes ( Rahman et al., 2021 ). Besides eCO 2 has found to enhance the activity of starch synthesizing enzymes and improve the accumulation of starch in wheat and maize plants grown under mercuric oxide nanoparticles ( AbdElgawad et al., 2020 ).…”

Section: Discussionmentioning

confidence: 99%

The impact of chromium toxicity on the yield and quality of rice grains produced under ambient and elevated levels of CO2

AbdElgawad

Mohammed²,

Dijk³

et al. 2023

Front. Plant Sci.

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Rice is a highly valuable crop consumed all over the world. Soil pollution, more specifically chromium (Cr), decreases rice yield and quality. Future climate CO2 (eCO2) is known to affect the growth and yield of crops as well as the quality parameters associated with human health. However, the detailed physiological and biochemical responses induced by Cr in rice grains produced under eCO2 have not been deeply studied. Cr (200 and 400 mg Cr6+/Kg soil) inhibited rice yield and photosynthesis in Sakha 106, but to less extend in Giza 181 rice cultivar. Elevated CO2 reduced Cr accumulation and, consequently, recovered the negative impact of the higher Cr dose, mainly in Sakha 106. This could be explained by improved photosynthesis which was consistent with increased carbohydrate level and metabolism (starch synthases and amylase). Moreover, these increases provided a route for the biosynthesis of organic, amino and fatty acids. At grain quality level, eCO2 differentially mitigated Cr stress-induced reductions in minerals (e.g., P, Mg and Ca), proteins (prolamin, globulin, albumin, glutelin), unsaturated fatty acids (e.g., C20:2 and C24:1) and antioxidants (phenolics and total antioxidant capacity) in both cultivars. This study provided insights into the physiological and biochemical bases of eCO2-induced grain yield and quality of Cr-stressed rice.

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Effects of drought stress and elevated CO2 on starch fine structures and functional properties in indica rice

Zhang

et al. 2022

Carbohydrate Polymers

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Elevated CO2 differentially affects the properties of grain from wild and domesticated rice

Cited by 6 publications

References 26 publications

Effects of elevated CO₂ on grain yield and quality in five wheat cultivars

Effects of elevated CO₂ on grain yield and quality in five wheat cultivars

The impact of chromium toxicity on the yield and quality of rice grains produced under ambient and elevated levels of CO2

Effects of drought stress and elevated CO2 on starch fine structures and functional properties in indica rice

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Elevated CO2 differentially affects the properties of grain from wild and domesticated rice

Cited by 6 publications

References 26 publications

Effects of elevated CO2 on grain yield and quality in five wheat cultivars

Effects of elevated CO2 on grain yield and quality in five wheat cultivars

The impact of chromium toxicity on the yield and quality of rice grains produced under ambient and elevated levels of CO2

Effects of drought stress and elevated CO2 on starch fine structures and functional properties in indica rice

Contact Info

Product

Resources

About

Effects of elevated CO₂ on grain yield and quality in five wheat cultivars

Effects of elevated CO₂ on grain yield and quality in five wheat cultivars