Bio-physical characters of maize (Zea mays L.) genotypes to elevated carbon dioxide and temperature regimes

Adishesha, K.; Janagoudar, B. S.; Amaregouda, A; Shanawad, U. K.; Chandranaik, M.

doi:10.15740/has/au/12.techsear(5)2017/1226-1232

Cited by 4 publications

(4 citation statements)

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“…In the present study, we found that under eCO 2 concentrations, the fennel plants exhibited distinct growth responses, including increases in plant length, stem diameter, tiller number, and SPAD value. The results are consistent with the results of previous studies reporting that several plants, such as Zea mays, sugarcane, and Sorghum bicolor, exhibit improved growth responses in terms of leaf area, plant height, and total mass under high CO 2 conditions (De Souza et al, 2008;Sicher and Barnaby, 2012;Adishesha et al, 2017;Khanboluki et al, 2018;Huang et al, 2019;Mina et al, 2019).…”

Section: Discussionsupporting

confidence: 92%

Elevated CO2 concentration induces changes in plant growth, transcriptome, and antioxidant activity in fennel (Foeniculum vulgare Mill.)

Lee

Byeon

et al. 2022

Front. Plant Sci.

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IntroductionFennel (Foeniculum vulgare Mill.) is widely used to produce natural bio-materials. Elevated CO2 (eCO2) concentrations in the atmosphere improve the net photosynthesis of plants.MethodsThe aim of the present study was to investigate distinct changes in fennel growth characteristics and phytonutrient contents under different CO2 concentrations. The effects of 400 and 800 ppm concentrations on plant growth and antioxidant activity were observed under hydroponics.Results and DiscussionPlant growth was improved by eCO2 concentrations. We also observed diverse changes in nutrient solution (pH, electrical conductivity, and dissolved oxygen) and environmental factors (temperature and humidity) in greenhouse under light or dark conditions. Electrical conductivity increased under dark and eCO2 conditions, whereas the pH decreased. Additionally, we performed transcriptome analysis and identified CO2-responsive differentially expressed genes. In the 800 ppm group, genes involved in photosynthesis and Karrikin response were upregulated whereas those involved in syncytium formation were downregulated. Four upregulated differentially expressed genes involved in flavonoid biosynthesis and total flavonoid content were relatively increased under the 800 ppm CO2 condition. In contrast, antioxidant activity, including total phenolic content, scavenging activity, ferric ion reducing antioxidant power, and reducing power were decreased in fennel under relatively high eCO2 concentrations. Moreover, different light intensities of 12 or 24 lx did not affect the growth and antioxidant activity of fennel, suggesting eCO2 has a stronger effect on plant improvement than light intensity. The results of the present study enhance our understanding of the positive effects of CO2 on the growth and antioxidant activity of fennel.

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Section: Discussionsupporting

confidence: 92%

Elevated CO2 concentration induces changes in plant growth, transcriptome, and antioxidant activity in fennel (Foeniculum vulgare Mill.)

Lee

Byeon

et al. 2022

Front. Plant Sci.

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“…Leaf area index and chlrophyll content of leaves were also significantly impacted under the different treatments however, the cultivar treatment interaction was not significantly different at both the crop stages (Table 4a). Adishesha et al (2017) reported that the cholorophyll content of maize increased under elevated CO2 environment and reduced under the tropospheric O3 concentration (Bhatia et al, 2014). Deterioration in chlorophyll content of leaves under EO might be because of damage to the chloroplast due to change in membrane permeability (Zhu et al, 2011).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Growth, Yield and Quality of Maize under Ozone and Carbon Dioxide Interaction in North West India

Yadav

Bhatia

Yadav

et al. 2021

Aerosol Air Qual. Res.

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Maize is an important C4 crop and how it will respond to elevated atmospheric carbon dioxide and ozone levels is not well documented. To understand how the growth and nutritional quality of maize will be affected under elevated carbon dioxide (CO2) and tropospheric ozone (O3) interaction, a field experiment was conducted under free air O3 and CO2 enrichment rings (FAOCE) growing HQPM-1 and PMH-1 maize cultivars at New Delhi, India. Each cultivar was exposed to ambient and elevated CO2 (559ppm) alone and along with ambient and elevated O3 (71.8 ppb) throughout the growing period. Elevated CO2 (EC) significantly increased the leaf area index (10.8-22.5%), chlorophyll (11.2-17.3%) and photosynthetic rate (12.1-16.5%) in the two cultivars over the ambient. O3 exposure of 27 ppmhr (AOT4O) under elevated O3 (EO) treatment led to a significant decline in yield (p<0.01) by 9.2% in HQPM-1 and 9.8% in PMH-1. Under elevated CO2 the increase in grain yield was higher under HQPM-1 (25.4%) as compared to PMH-1 (9.04%). The protein content increased under EO (8.1-12.5%) and decreased under EC (13.4-13.6%) in the two maize cultivars due to yield dilution effect. Lysine, phosphorus and potassium content of the grain significantly decreased in both the cultivars under elevated CO2. Carbohydrate and amylose concentrations in grains increased (9.9-15.5%) under EC and decreased (10.8

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“… * Reference: 1 Mina et al [ 68 ]; 2 Adishesha et al [ 74 ]; 3 Sicher and Barnaby [ 75 ]; 4 Huang et al [ 62 ]; 5 Vu et al [ 12 ]; 6 Souza et al [ 13 ]; 7 Chaudhuri et al [ 76 ]; 8 Khanboluki et al [ 69 ]. The symbols mean an increase (↑) and no difference (=) in relation to control plants ([CO 2 ] ambient).…”

Section: Figurementioning

confidence: 99%

Increased [CO2] Causes Changes in Physiological and Genetic Responses in C4 Crops: A Brief Review

Silva

Alves

Zingaretti

2020

Plants

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Climate change not only worries government representatives and organizations, but also attracts the attention of the scientific community in different contexts. In agriculture specifically, the cultivation and productivity of crops such as sugarcane, maize, and sorghum are influenced by several environmental factors. The effects of high atmospheric concentration of carbon dioxide ([CO2]) have been the subject of research investigating the growth and development of C4 plants. Therefore, this brief review presents some of the physiological and genetic changes in economically important C4 plants following exposure periods of increased [CO2] levels. In the short term, with high [CO2], C4 plants change photosynthetic metabolism and carbohydrate production. The photosynthetic apparatus is initially improved, and some responses, such as stomatal conductance and transpiration rate, are normally maintained throughout the exposure. Protein-encoding genes related to photosynthesis, such as the enzyme phosphoenolpyruvate carboxylase, to sucrose accumulation and to biomass growth and are differentially regulated by [CO2] increase and can variably participate owing to the C4 species and/or other internal and external factors interfering in plant development. Despite the consensus among some studies, mainly on physiological changes, further studies are still necessary to identify the molecular mechanisms modulated under this condition. In addition, considering future scenarios, the combined effects of high environmental and [CO2] stresses need to be investigated so that the responses of maize, sugarcane, and sorghum are better understood.

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Bio-physical characters of maize (Zea mays L.) genotypes to elevated carbon dioxide and temperature regimes

Cited by 4 publications

References 9 publications

Elevated CO2 concentration induces changes in plant growth, transcriptome, and antioxidant activity in fennel (Foeniculum vulgare Mill.)

Elevated CO2 concentration induces changes in plant growth, transcriptome, and antioxidant activity in fennel (Foeniculum vulgare Mill.)

Growth, Yield and Quality of Maize under Ozone and Carbon Dioxide Interaction in North West India

Increased [CO2] Causes Changes in Physiological and Genetic Responses in C4 Crops: A Brief Review

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