The influence of carbon dioxide on protein synthesis in etiolated coleoptiles of Arena sativa

1972 ◽  
Vol 50 (9) ◽  
pp. 1937-1942
Author(s):  
A. W. Bown ◽  
W. W. Lampman
Keyword(s):  
Carbon Dioxide ◽  
Protein Synthesis ◽  
Avena Sativa ◽  
Protein Metabolism ◽  
Protein Fraction ◽  
Carbon Dioxide Concentration ◽  
Electrophoretic Analysis ◽  
Plant Tissues ◽  
Atmospheric Concentration ◽  
Profound Influence

Various concentrations of carbon dioxide have been used to assess the influence of carbon dioxide on protein metabolism in etiolated coleoptiles of Avena sativa. Increases in carbon dioxide concentration from 0% to 0.03% to 3% result in dramatic increases in both the total level of protein and the incorporation of radioactive leucine into protein. In addition an electrophoretic analysis indicates that as the carbon dioxide concentration is raised from 0% to 0.03% there is both an increased synthesis of most proteins plus a pronounced synthesis of one particular protein fraction. These results indicate that the normal atmospheric concentration of carbon dioxide has a profound influence on protein metabolism in Avena sativa coleoptiles and are discussed in connection with the well-documented phenomenon of carbon dioxide stimulated growth in etiolated plant tissues.

scholarly journals Responses of pea (Pisum sativum L.) to the rising atmospheric concentration of carbon-dioxide

2017 ◽  
pp. 185-188
Author(s):  
András Tamás ◽  
Ágnes Törő ◽  
Tamás Rátonyi ◽  
Endre Harsányi
Keyword(s):  
Carbon Dioxide ◽  
Environmental Factors ◽  
Atmospheric Carbon Dioxide ◽  
Photosynthetic Apparatus ◽  
Carbon Dioxide Concentration ◽  
Growing Season ◽  
Atmospheric Concentration ◽  
Pisum Sativum L ◽  
Key Factor ◽  
Carbon Dioxide Levels

The atmospheric concentration of carbon dioxide increases from decade to decade in increasing pace. In 1957, atmospheric carbon dioxide levels were around 315 ppm, while in 2012 it amounted to 394.49 ppm concentration. In parallel, the global temperature is rising,which is projected to average 1.5–4.5 °C. The carbon dioxide concentration is a key factor – in interaction with the light – affects the plant's photosynthesis. Among the various factors significant interactions prevail: environmental factors affect - the growth and the development of plants, leaf area size and composition, the function of the photosynthetic apparatus, the duration of growing season.

The presence and role of phosphopyruvate carboxylase in etiolated coleoptiles of Avena sativa

1971 ◽  
Vol 49 (2) ◽  
pp. 321-326 ◽  
Author(s):  
A. W. Bown ◽  
W. W. Lampman
Keyword(s):  
Carbon Dioxide ◽  
Protein Synthesis ◽  
Avena Sativa ◽  
Malic Enzyme ◽  
Carbon Dioxide Fixation

Phosphopyruvate carboxylase and malic enzyme were detected in etiolated coleoptiles of Avena sativa, and it was concluded that the incorporation of 14C-labeled bicarbonate into aspartate and glutamate involved the activity of the former enzyme. IAA stimulated the fixation of labeled bicarbonate, and the incorporation of labeled leucine into protein was increased in the presence of carbon dioxide. It is suggested that the carbon dioxide stimulated growth of Avena coleoptiles is due to an increased rate of protein synthesis which is dependent on carbon dioxide fixation.

Communication: Photoinduced Carbon Dioxide Binding with Surface-Functionalized Silicon Quantum Dots

2018 ◽  
Author(s):  
Oscar A. Douglas-Gallardo ◽  
Cristián Gabriel Sánchez ◽  
Esteban Vöhringer-Martinez
Keyword(s):  
Carbon Dioxide ◽  
Quantum Dots ◽  
Atmospheric Carbon Dioxide ◽  
Density Functional ◽  
Tight Binding ◽  
Carbon Dioxide Concentration ◽  
Research Area ◽  
Silicon Quantum Dots ◽  
Dependent Model ◽  
Photoinduced Charge

<div> <div> <div> <p>Nowadays, the search of efficient methods able to reduce the high atmospheric carbon dioxide concentration has turned into a very dynamic research area. Several environmental problems have been closely associated with the high atmospheric level of this greenhouse gas. Here, a novel system based on the use of surface-functionalized silicon quantum dots (sf -SiQDs) is theoretically proposed as a versatile device to bind carbon dioxide. Within this approach, carbon dioxide trapping is modulated by a photoinduced charge redistribution between the capping molecule and the silicon quantum dots (SiQDs). Chemical and electronic properties of the proposed SiQDs have been studied with Density Functional Theory (DFT) and Density Functional Tight-Binding (DFTB) approach along with a Time-Dependent model based on the DFTB (TD-DFTB) framework. To the best of our knowledge, this is the first report that proposes and explores the potential application of a versatile and friendly device based on the use of sf -SiQDs for photochemically activated carbon dioxide fixation. </p> </div> </div> </div>

Hyperspectral characteristics and leaf area index monitoring of rice (Oryza sativa L.) under carbon dioxide concentration enrichment

2021 ◽  
Vol 54 (3) ◽  
pp. 231-243
Author(s):  
Chao Liu ◽  
Zhenghua Hu ◽  
Rui Kong ◽  
Lingfei Yu ◽  
Yuanyuan Wang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Oryza Sativa ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Oryza Sativa L ◽  
Carbon Dioxide Concentration ◽  
Area Index

scholarly journals Analysis of the possibility and molecular mechanism of carbon dioxide consumption in the Diels-Alder processes

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Karolina Kula ◽  
Agnieszka Kącka-Zych ◽  
Agnieszka Łapczuk-Krygier ◽  
Radomir Jasiński
Keyword(s):  
Carbon Dioxide ◽  
Molecular Mechanism ◽  
Lewis Acids ◽  
Chemical Reactivity ◽  
Carbon Dioxide Concentration ◽  
Diels Alder ◽  
Wide Range ◽  
Bet Analysis ◽  
Earth’S Climate ◽  
Step Mechanism

Abstract The large and significant increase in carbon dioxide concentration in the Earth’s atmosphere is a serious problem for humanity. The amount of CO2 is increasing steadily which causes a harmful greenhouse effect that damages the Earth’s climate. Therefore, one of the current trends in modern chemistry and chemical technology are issues related to its utilization. This work includes the analysis of the possibility of chemical consumption of CO2 in Diels-Alder processes under non-catalytic and catalytic conditions after prior activation of the C=O bond. In addition to the obvious benefits associated with CO2 utilization, such processes open up the possibility of universal synthesis of a wide range of internal carboxylates. These studies have been performed in the framework of Molecular Electron Density Theory as a modern view of the chemical reactivity. It has been found, that explored DA reactions catalyzed by Lewis acids with the boron core, proceeds via unique stepwise mechanism with the zwitterionic intermediate. Bonding Evolution Theory (BET) analysis of the molecular mechanism associated with the DA reaction between cyclopentadiene and carbon dioxide indicates that it takes place thorough a two-stage one-step mechanism, which is initialized by formation of C–C single bond. In turn, the DA reaction between cyclopentadiene and carbon dioxide catalysed by BH3 extends in the environment of DCM, indicates that it takes place through a two-step mechanism. First path of catalysed DA reaction is characterized by 10 different phases, while the second by eight topologically different phases.

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