Growth and nutritional quality improvement in two differently pigmented lettuce cultivars grown under elevated CO2 and/or salinity

Pérez‐López, Usue; Miranda-Apodaca, Jon; Lacuesta, M.; Mena‐Petite, Amaia; Muñoz‐Rueda, Alberto

doi:10.1016/j.scienta.2015.08.034

Cited by 51 publications

(34 citation statements)

References 48 publications

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“…Additionally, CO 2 enrichments decreased protein concentration (Fig. f), consistent with several other studies in grains and other vegetables . Although cucumber is not the main protein source, the decreased protein concentration in both vegetables and grain crops potentially accelerates the imbalance in energy and protein uptake, particularly for vegans …”

Section: Discussionsupporting

confidence: 90%

“…The greater magnitude of carbohydrate accumulation may be attributed to the greater transformation of other compounds to glucose, starch, and dietary fiber. Elevated CO 2 has been shown to increase soluble sugar in vegetables like celery, tomato and lettuce, of starch in potato and palak, and of dietary fiber in carrot, radish, and turnip, which can enhance the taste flavor of fruits and alleviate the health risks caused by certain diseases (e.g. diabetes, cancer, and cardiovascular disease) due to potential greater intake of dietary fiber .…”

Section: Discussionmentioning

confidence: 99%

“…wheat, rice, and sorghum) and vegetables (e.g. lettuce, sweet pepper, and carrot and turnip). This similarity gives us a warning that the deficiency of Fe and Zn could possibly impose an inevitable threat to human nutrition from the consumption of either grain crops or vegetables if breeders or producers continue focusing on increasing vegetable yield in the future.…”

Section: Discussionmentioning

confidence: 99%

“…2f ), consistent with several other studies in grains 19 and other vegetables. 43,50 Although cucumber is not the main protein source, 51 the decreased protein concentration in both vegetables and grain crops potentially accelerates the imbalance in energy and protein uptake, particularly for vegans. 52 Super-elevated CO 2 compared with other CO 2 treatments did not concentrate minerals in high N availability as predicted.…”

Section: Fruit Qualitymentioning

confidence: 99%

See 3 more Smart Citations

Elevated and super‐elevated CO₂ differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Dong

Gruda

et al. 2018

J Sci Food Agric

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Fruit Qualitymentioning

confidence: 99%

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Elevated and super‐elevated CO₂ differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Dong

Gruda

et al. 2018

J Sci Food Agric

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“…Reductions in NO 3 -contents in lettuce cultivars under saline stress were also reported by Pérez-López et al (2015). The concentration of nitrate in lettuce varies according to varieties and cultivation conditions, exhibiting values between 0.94 and 3.42 g kg -1 of fresh matter (FM) (Paulus et Means followed by the same letters do not differ by Scott-Knott test at 0.05 significance level Figure 3.…”

Section: Resultssupporting

confidence: 56%

Content of inorganic solutes in lettuce grown with brackish water in different hydroponic systems

Cova

Freitas

Viana

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe objective of this study was to evaluate the growth and accumulation of ions in lettuce grown in different hydroponic systems and recirculation frequencies. The experimental design was randomized blocks with 8 treatments and 4 replicates. The evaluated hydroponic systems were Nutrient Flow Technique (NFT) and an adapted Deep Flow Technique (DFT), the latter with recirculation frequencies of 0.25, 2 and 4 h. Both systems used fresh water and brackish water. Plant growth, accumulation of inorganic solutes (Na + , K + , Cl -and NO 3 -) and the correlation between dry matter production and Na + /K + and Cl -/NO 3 -were evaluated. The salinity of the water used to prepare the nutrient solution caused decrease in growth and K + and NO 3 -levels, and increased contents of Na + and Cl -in the plants. When using fresh water the highest dry matter production was obtained in the NFT system. In case of brackish water the adapted DFT system increased the production, in relation to NFT system (at same recirculation frequency: 0.25 h). It was found that the choice of the type of hydroponic system and recirculation interval for the cultivation of lettuce depends on the quality of the water used to prepare the nutrient solution.Teor de solutos inorgânicos em alface cultivada com água salobra em diferentes sistemas hidropônicos R E S U M O Objetivou-se, neste trabalho, avaliar o crescimento e o acúmulo de íons em alface cultivada em diferentes sistemas hidropônicos e frequências de recirculação. O delineamento experimental foi o aleatorizado em blocos com 8 tratamentos e 4 repetições. Os sistemas hidropônicos avaliados foram a Técnica do Fluxo Laminar de Nutrientes (NFT) e a Técnica do Fluxo Profundo (DFT) adaptada, este último com frequências de recirculação de 0,25, 2 e 4 h. Foi utilizada, em ambos os sistemas, água doce e água salobra. Foram avaliados o crescimento, o acúmulo de solutos inorgânicos (Na + , K + , Cl -e NO 3 -) e a correlação entre a produção de matéria seca e a relação Na + /K + e Cl -/NO 3 -. A salinidade da água utilizada no preparo da solução nutritiva proporcionou diminuição no crescimento e nos teores de K + e NO 3 -e aumentou os teores de Na + e Cl -nas plantas. Quando foi empregada água doce, o sistema NFT proporcionou maior produção de massa de matéria seca. No caso de água salobra o sistema DFT adaptado aumentou a produção, em relação ao sistema NFT (na mesma frequência de recirculação: 0,25 h). Verificou-se que a escolha do sistema hidropônico e do intervalo de recirculação para o cultivo da alface depende da qualidade da água utilizada no preparo da solução nutritiva.

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Rising Atmospheric CO₂ Lowers Concentrations of Plant Carotenoids Essential to Human Health: A Meta‐Analysis

Loladze

Nolan

Ziska

et al. 2019

Molecular Nutrition Food Res

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Plant and human tissues (e.g., leaves, retina) share the need for carotenoids to protect against light‐induced and other oxidative stresses. While plants synthesize carotenoids de novo, humans must obtain them primarily through plant‐based foods. In plants, elevated levels of atmospheric carbon dioxide (eCO2) decrease the concentrations of essential minerals, including magnesium and zinc (essential for brain and eye health), but the overall effect of globally rising CO2 levels on carotenoids is unknown. Here, investigation is sought on how eCO2 affects carotenoids in plants. A meta‐analysis of 1026 experimental observations from 37 studies shows that eCO2 decreases plant carotenoid concentrations by 15% (95% CI: −26% to −6%). The meta‐analysis of available gene expression data for Arabidopsis thaliana points to a potential CO2‐induced downregulation of carotenoid biosynthesis (Log2 fold‐change −13%, 95% CI: −17% to −9%). Some other stoichiometric and biochemical mechanisms related to CO2‐induced changes in carotenoids are also highlighted. While overall eCO2 decreases carotenoid concentrations, individual CO2 studies report variable responses, including increases in carotenoid levels, especially in abiotically stressed plants. The initial assessment raises a novel question about the potential effects of rising CO2 on human health through its global effect on plant carotenoids.

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Growth and nutritional quality improvement in two differently pigmented lettuce cultivars grown under elevated CO2 and/or salinity

Cited by 51 publications

References 48 publications

Elevated and super‐elevated CO₂ differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Elevated and super‐elevated CO₂ differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Content of inorganic solutes in lettuce grown with brackish water in different hydroponic systems

Rising Atmospheric CO₂ Lowers Concentrations of Plant Carotenoids Essential to Human Health: A Meta‐Analysis

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Growth and nutritional quality improvement in two differently pigmented lettuce cultivars grown under elevated CO2 and/or salinity

Cited by 51 publications

References 48 publications

Elevated and super‐elevated CO2 differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Elevated and super‐elevated CO2 differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Content of inorganic solutes in lettuce grown with brackish water in different hydroponic systems

Rising Atmospheric CO2 Lowers Concentrations of Plant Carotenoids Essential to Human Health: A Meta‐Analysis

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Elevated and super‐elevated CO₂ differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Elevated and super‐elevated CO₂ differ in their interactive effects with nitrogen availability on fruit yield and quality of cucumber

Rising Atmospheric CO₂ Lowers Concentrations of Plant Carotenoids Essential to Human Health: A Meta‐Analysis