Oscillations of the internal CO2 concentration in tobacco leaves transferred to low CO2

Roussel, Marc R.; Ивлев, А. А.; Igamberdiev, Abir U.

doi:10.1016/j.jplph.2006.08.004

Cited by 33 publications

(24 citation statements)

References 30 publications

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“…Biochemists have commented upon the apparent inefficiency of rubisco in terms of only achieving five cycles per second with 20% wasteful reaction with oxygen, rather than carbon dioxide [50]. At limiting concentrations of reactants, rubisco shows oscillating activity at low reagent concentrations [51].…”

Section: Possible Attraction Of Kelea By Brain and Musclesmentioning

confidence: 99%

The Many Biological Functions of the Alternative Cellular Energy (ACE) Pathway

Martin¹

2017

IJCAM

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This article summarizes the known biological functions of the alternative cellular energy (ACE) pathway. It has been proposed that this pathway is powered by a natural force called KELEA (kinetic energy limiting electrostatic attraction). KELEA can be transferred to liquids, including water and body fluids. The absorption of KELEA results in a loosening and possible lengthening of the intermolecular bonding between the liquid molecules, along with an increase in the kinetic activity of the molecules. KELEA can also provide an energy source for biosynthetic chemical reactions, including the synthesis of lipids. Since many human illnesses are attributed to insufficienct cellular energy (ICE), procedures aimed at enhancing the ACE pathway are likely to be therapeutically useful. Some of these procedures are currently available for widespread clinical use once they receive regulatory approval. A consortium of interacting clinicians is envisioned to assist in optimizing the current procedures for enhancing the ACE pathway and to develop new approaches. Patient support groups can also assist in the evaluation of various self-directed therapeutic procedures. Collectively, these efforts should significantly decrease the existing costs of medical care and provide effective therapies for several major illnesses for which none presently exists. Keywords: IntroductionIt has been assumed that the cellular energy utilized by animals and humans is solely obtained from the Calories available in consumed food. Yet, the work output of a typical human in terms of the functioning of different organ systems, muscular activities and maintaining body temperature are not explainable by the input of dietary calories [1,2]. To put this issue into perspective, the maximum available energy upon consumption of a diet of 2,000 Calories is less than that in a tenth of a gallon of gasoline (8.4 million versus 13 million joules). A Calorie (kilocalorie) is 4,200 joules and is defined as the heat necessary to raise the temperature of a kilogram (Kg) of water by 1 o Centigrade (C). Over a 24-hour period, an individual weighing 75 kilograms and assumed to be composed essentially of water, requires 6.3 million joules (1,500 Calories) to maintain a body temperature of 37 °C if living in an environment with an average temperature of 17 °C (59 o Fahrenheit).[75 x (37-17) = 1,500]. Estimates of the work output of various organs within the body, such as the heart and brain, are generally based on oxygen consumption, which again incorrectly assumes that food metabolism is the sole source of cellular energy. Higher estimates of work output are obtained using measures of biosynthesis, fluid movements, muscular performance, electrical activity, etc. It is reasonable, therefore, to consider that there is a mechanism, other than consuming food, by which the body can acquire cellular energy. Beliefs in Non-Conventional EnergiesTraditional Oriental Medicine providers and Complementary Medicine (CAM) practitioners have long maintained that the body expr...

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Section: Possible Attraction Of Kelea By Brain and Musclesmentioning

confidence: 99%

The Many Biological Functions of the Alternative Cellular Energy (ACE) Pathway

Martin¹

2017

IJCAM

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“…Under intense illumination CO 2 the supply of Rubisco becomes insufficient to provide effective work of Calvin cycle. In this case photosynthesizing organisms use instead of CO 2 another substrate O 2 , involving photorespiratory pathway [39]. It is followed by 13 C enrichment of biomass.…”

Section: Cmentioning

confidence: 99%

Global Photosynthesis and its Regulatory Role in Natural Carbon Cycle

Ивлев¹

2017

J Ecosyst Ecogr

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Main features of global photosynthesis operating in global carbon cycle are considered. Global photosynthesis has all the basic features of normal photosynthesis of C3 type, excepting those that characterize ontogenetic changes. They include: the existence reciprocal processes assimilation and photorespiration, the possession of the key enzyme Rubisco having carboxylase/oxygenase activity, the existence of oscillatory mechanism switching over assimilation to photorespiration and back, carbon isotope fractionation in CO2 assimilation and photorespiration with opposite signs of isotope effects and some others. Considering these features of global photosynthesis, its functioning in global carbon cycle is analyzed. The photosynthetic mechanism forming carbon isotope composition of "living matter" and sedimentary organic matter is suggested. It is shown that environmental conditions of photosynthesis in the location plays a dominant role in forming carbon isotope composition of the above objects. The difference in environmental conditions determines facial isotopic shifts. The analysis of natural isotopic data confirms this conclusion. It allows saying that carbon isotopic difference between oils and organic matter is inherited from the difference between lipid fraction and other part of biomass of "living matter" that was the source of initial biogenic material. It is shown that global photosynthesis performs in global carbon cycle a regulatory role ensuring cycle's movement to the ecological compensation point. The regulatory role is based on the ability of photosynthesizing organisms to respond to the increased oxygen concentration in the course of evolution by reducing assimilation and increasing photorespiration. The achievement of ecological compensation point means that oxygen atmosphere was stabilized and further accumulation of organic matter in the Earth's crust stopped.

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“…The internal CO 2 concentration also increased after the time 13h00 ( Figure 3D), due to the accumulation of the CO 2 that was not used by plants because the reduction in photosynthetic rate, which may be related to the decrease in light availability during this period (SANTRUCEK et al, 2014). Moreover, there is the contribution of the higher stomatal closure after that time, which resulted in accumulation of CO 2 from the cellular respiration and photorespiration activity in the mesophyll cells (ROUSSEL; IVLEV; IGAMBERDIEV, 2007).…”

Section: Figurementioning

confidence: 99%

METHODS FOR OVERCOMING SEED DORMANCY AND THE INITIAL GROWTH OF Ziziphus joazeiro Mart. IN DIFFERENT SOILS

et al. 2016

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-Considering the potential and importance of biodiversity of the Caatinga biome, studies on endemic species are relevant to conservation of its natural resources. The objectives of this work was to evaluate seed viability and physical methods for overcoming seed dormancy in juazeiro (Ziziphus joazeiro Mart.) and assess the influence of different types of soil on the initial growth of juazeiro plants. The experiments were conducted in three stages. In the first stage, the viability of seeds from different lots was evaluated using the tetrazolium test. The second stage was conducted in a plant nursery, evaluating the application of physical processes (scarification with sandpaper and hammer) in overcoming seed dormancy, and the initial growth of the plants. In the third step, the chlorophyll a and b contents, gas exchange and dry matter accumulation were evaluated in young juazeiro plants in three types of soil (Oxisol, Entisol and Vertisol). The results indicate that the viability of juazeiro seeds is greatly influenced by differences between the progenitor plants and by storage conditions, which enable a longevity of two years when stored at 22°C and 16% of relative humidity. The scarification methods with sandpaper and hammer are not efficient to reduce the time and uniform seed germination. The juazeiro plants have high growth potential in different edaphic environments, adapting well to soils of different textures and chemical compositions.Keywords: Juazeiro. Emergence. Gas exchange. Chlorophyll index. Soil. SUPERAÇÃO DE DORMÊNCIA EM SEMENTES E CRESCIMENTO INICIAL DEZiziphus joazeiro Mart. EM DIFERENTES SOLOS RESUMO -Considerando as potencialidades e importância da biodiversidade do bioma Caatinga, estudos sobre espécies endêmicas são relevantes para conservação de seus recursos naturais. Objetivou-se com este trabalho avaliar a viabilidade e a superação de dormência de sementes de juazeiro (Ziziphus joazeiro Mart.) e seu o crescimento inicial em diferentes tipos de solo. Os experimentos foram conduzidos em três etapas. Na primeira, avaliou-se a viabilidade de diferentes lotes de sementes, utilizando o teste de tetrazólio. A segunda etapa foi conduzida em viveiro, avaliando-se as aplicações de processos físicos, escarificação com lixa e com martelo, para superação da dormência das sementes e determinação do crescimento inicial das plantas. Na última etapa foram avaliados os índices de clorofila a e b, as trocas gasosas e o acúmulo de matéria seca em plantas jovens de juazeiro em três tipos de solo (Latossolo, Neossolo e Vertissolo). A partir dos resultados obtidos pode-se afirmar que a viabilidade das sementes de juazeiro é bastante influenciada pelas diferenças existentes entre plantas matrizes e pelas condições de armazenamento, apresentando longevidade de dois anos, quando armazenadas a 22 o C e 16% de umidade relativa. Os métodos de escarificação com lixa e martelo não são eficientes para reduzir o tempo e uniformizar a geminação das sementes. As plantas de juazeiro apresentam elevado potencial p...

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Oscillations of the internal CO2 concentration in tobacco leaves transferred to low CO2

Cited by 33 publications

References 30 publications

The Many Biological Functions of the Alternative Cellular Energy (ACE) Pathway

The Many Biological Functions of the Alternative Cellular Energy (ACE) Pathway

Global Photosynthesis and its Regulatory Role in Natural Carbon Cycle

METHODS FOR OVERCOMING SEED DORMANCY AND THE INITIAL GROWTH OF Ziziphus joazeiro Mart. IN DIFFERENT SOILS

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