Crop Responses to Rising Atmospheric [CO<sub>2</sub>] and Global Climate Change

Lemonnier, Pauline; Ainsworth, Elizabeth A.

doi:10.1002/9781119180661.ch3

Cited by 10 publications

(8 citation statements)

References 79 publications

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“…Plants grown in natural environments often encounter multiple stresses at the same time. For instance, atmospheric CO 2 is predicted to double its current concentration by 2100 but could reach 443–541 ppm by 2050, 1 further contributing to water scarcity and global warming 2 . The mean annual temperature has increased by about 1.0 °C globally since 1881 3 .…”

Section: Introductionmentioning

confidence: 99%

Impact of climate change on wheat grain composition and quality

et al. 2022

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Wheat grain quality, an important determinant for human nutrition, is often overlooked when improving crop production for stressed environments. Climate change makes this task more difficult by imposing combined stresses. The scenarios relevant to climate change include elevated CO2 concentrations (eCO2) and extreme climatic events such as drought, heat waves, and salinity stresses. However, data on wheat quality in terms of climate change are limited, with no concerted efforts at the global level to provide an equitable and consistent climate risk assessment for wheat grain quality. Climate change induces changes in the quality and composition of wheat grain, a premier staple food crop globally. Climate‐change events, such as eCO2, heat, drought, salinity stress stresses, heat + drought, eCO2 + drought, and eCO2 + heat stresses, alter wheat grain quality in terms of grain weight, nutrient, anti‐nutrient, fiber, and protein content and composition, starch granules, and free amino acid composition. Interestingly, in comparison with other stresses, heat stress and drought stress increase phytate content, which restricts the bioavailability of essential mineral elements. All climatic events, except for eCO2 + heat stress, increase grain gliadin content in different wheat varieties. However, grain quality components depend more on inter‐varietal difference, stress type, and exposure time and intensity. The climatic events show differential regulation of protein and starch accumulation, and mineral metabolism in wheat grains. Rapid climate shifting impairs wheat productivity and causes grain quality to deteriorate by interrupting the allocation of essential nutrients and photoassimilates. © 2022 Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 99%

Impact of climate change on wheat grain composition and quality

et al. 2022

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“…Accumulation of starch in leaves is thought to be unfavourable for photosynthesis, because the down‐regulation of photosynthesis under e[CO 2 ] is often attributable to insufficient capacity of sink to use or store carbohydrates (Lemonnier & Ainsworth, 2018). In our study, leaf starch was increased by e[CO 2 ] at each K supply rate (Figure 9a), probably indicating a certain degree of down‐regulation of photosynthesis under e[CO 2 ].…”

Section: Discussionmentioning

confidence: 99%

Plant growth and water economy of Solanum tuberosum in response to doubled CO₂: Interaction between potassium and phosphorus

Yan

Yano

2021

J Agronomy Crop Science

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Potassium (K) and phosphorus (P) are essential macronutrients for potato (Solanum tuberosum L.); they play crucial roles in photoassimilate production that can also be affected by elevated atmospheric CO2 concentration (e[CO2]). However, the interactive effects of K and P nutrition under e[CO2] in potato have not been investigated. A pot experiment was carried out on potato plants in 1‐L pots with five K supply rates at two P supply rates in controlled‐environment chambers with ambient CO2 concentrations (a[CO2]) and an e[CO2] level of double a[CO2]. There was a significant interaction between K supply and P supply, but not between CO2 and K supply on total plant biomass, water use as well as water‐use efficiency (WUE). K supply could remarkably enhance the accumulation of plant biomass under e[CO2] by promoting tuber formation. The maximum total plant biomass increased by approximately 1.3‐fold under e[CO2] in this study, while the effect of CO2 was dependent on both P and K supply. Additionally, WUE was increased by e[CO2] and P and K supply. Both CO2 enrichment and K supply increased WUE by stimulating biomass accumulation and reducing water consumption. We concluded that the CO2‐fertilization effect and WUE were dependent on both P and K supply. Less biomass accumulation in response to K supply in plants with P deficiency indicates that a balanced nutrient status is crucial for crop production under e[CO2].

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“…These increases in CO 2 (and other greenhouse gases) will raise global mean temperatures by 1–3.7°C by the year 2100, with temperature increases of closer to 10°C in high latitude regions (Ciais et al, ). There has been considerable attention paid to the direct impacts of rising CO 2 and temperature for crop growth and productivity (see, e.g., Lawlor & Mitchell, ; Lemonnier & Ainsworth, ). However, most of the research on how climate change will alter seed quality has focused on nutritional effects, such as changes in N and protein content (Jablonski, Wang, & Curtis, ), or metabolic changes that occur during seed germination (Izdorczyk et al, ).…”

Section: Metabolic Alterations Of Seed Quality Under Climate Changementioning

confidence: 99%

Seed quality and carbon primary metabolism

Domergue

Abadie

Limami

et al. 2019

Plant Cell & Environment

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Improving seed quality is amongst the most important challenges of contemporary agriculture. In fact, using plant varieties with better germination rates that are more tolerant to stress during seedling establishment may improve crop yield considerably.Therefore, intense efforts are currently being devoted to improve seed quality in many species, mostly using genomics tools. However, despite its considerable importance during seed imbibition and germination processes, primary carbon metabolism in seeds is less studied. Our knowledge of the physiology of seed respiration and energy generation and the impact of these processes on seed performance have made limited progress over the past three decades. In particular, (isotope-assisted) metabolomics of seeds has only been assessed occasionally, and there is limited information on possible quantitative relationships between metabolic fluxes and seed quality. Here, we review the recent literature and provide an overview of potential links between metabolic efficiency, metabolic biomarkers, and seed quality and discuss implications for future research, including a climate change context.

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Crop Responses to Rising Atmospheric [CO₂] and Global Climate Change

Cited by 10 publications

References 79 publications

Impact of climate change on wheat grain composition and quality

Impact of climate change on wheat grain composition and quality

Plant growth and water economy of Solanum tuberosum in response to doubled CO₂: Interaction between potassium and phosphorus

Seed quality and carbon primary metabolism

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Crop Responses to Rising Atmospheric [CO2] and Global Climate Change

Cited by 10 publications

References 79 publications

Impact of climate change on wheat grain composition and quality

Impact of climate change on wheat grain composition and quality

Plant growth and water economy of Solanum tuberosum in response to doubled CO2: Interaction between potassium and phosphorus

Seed quality and carbon primary metabolism

Contact Info

Product

Resources

About

Crop Responses to Rising Atmospheric [CO₂] and Global Climate Change

Plant growth and water economy of Solanum tuberosum in response to doubled CO₂: Interaction between potassium and phosphorus