1
|
Thom SR, Bhopale VM, Hu J, Yang M. Increased carbon dioxide levels stimulate neutrophils to produce microparticles and activate the nucleotide-binding domain-like receptor 3 inflammasome. Free Radic Biol Med 2017; 106:406-416. [PMID: 28288918 DOI: 10.1016/j.freeradbiomed.2017.03.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/22/2017] [Accepted: 03/08/2017] [Indexed: 11/22/2022]
Abstract
We hypothesized that elevations of carbon dioxide (CO2) commonly found in modern buildings will stimulate leukocytes to produce microparticles (MPs) and activate the nucleotide-binding domain-like receptor 3 (NLRP3) inflammasome due to mitochondrial oxidative stress. Human and murine neutrophils generate MPs with high interleukin-1β (IL-1β) content when incubated ex vivo in buffer equilibrated with 0.1-0.4% additional CO2. Enhanced MPs production requires mitochondrial reactive oxygen species production, which is mediated by activities of pyruvate carboxylase and phosphoenolpyruvate carboxykinase. Subsequent events leading to MPs generation include perturbation of inositol 1,3,5-triphosphate receptors, a transient elevation of intracellular calcium, activation of protein kinase C and NADPH oxidase (Nox). Concomitant activation of type-2 nitric oxide synthase yields secondary oxidants resulting in actin S-nitrosylation and enhanced filamentous actin turnover. Numerous proteins are linked to short filamentous actin including vasodilator-stimulated phosphoprotein, focal adhesion kinase, the membrane phospholipid translocation enzymes flippase and floppase, and the critical inflammasome protein ASC (Apoptosis-associated Speck protein with CARD domain). Elevations of CO2 cause oligomerization of the inflammasome components ASC, NLRP3, caspase 1, thioredoxin interacting protein, and calreticulin - a protein from endoplasmic reticulum, leading to IL-1β synthesis. An increased production rate of MPs containing elevated amounts of IL-1β persists for hours after short-term exposures to elevated CO2.
Collapse
Affiliation(s)
- Stephen R Thom
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | - Veena M Bhopale
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | - JingPing Hu
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | - Ming Yang
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| |
Collapse
|
2
|
Amthor JS. Plant Respiratory Responses to Elevated Carbon Dioxide Partial Pressure. ADVANCES IN CARBON DIOXIDE EFFECTS RESEARCH 2015. [DOI: 10.2134/asaspecpub61.c2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
3
|
Crawford R. The anaerobic retreat as a survival strategy for aerobic plants and animals. ACTA ACUST UNITED AC 2010. [DOI: 10.1080/03746608208685414] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
4
|
Phosphoenolpyruvate carboxykinase as the sole anaplerotic enzyme in Saccharomyces cerevisiae. Appl Environ Microbiol 2010; 76:5383-9. [PMID: 20581175 DOI: 10.1128/aem.01077-10] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pyruvate carboxylase is the sole anaplerotic enzyme in glucose-grown cultures of wild-type Saccharomyces cerevisiae. Pyruvate carboxylase-negative (Pyc(-)) S. cerevisiae strains cannot grow on glucose unless media are supplemented with C(4) compounds, such as aspartic acid. In several succinate-producing prokaryotes, phosphoenolpyruvate carboxykinase (PEPCK) fulfills this anaplerotic role. However, the S. cerevisiae PEPCK encoded by PCK1 is repressed by glucose and is considered to have a purely decarboxylating and gluconeogenic function. This study investigates whether and under which conditions PEPCK can replace the anaplerotic function of pyruvate carboxylase in S. cerevisiae. Pyc(-) S. cerevisiae strains constitutively overexpressing the PEPCK either from S. cerevisiae or from Actinobacillus succinogenes did not grow on glucose as the sole carbon source. However, evolutionary engineering yielded mutants able to grow on glucose as the sole carbon source at a maximum specific growth rate of ca. 0.14 h(-1), one-half that of the (pyruvate carboxylase-positive) reference strain grown under the same conditions. Growth was dependent on high carbon dioxide concentrations, indicating that the reaction catalyzed by PEPCK operates near thermodynamic equilibrium. Analysis and reverse engineering of two independently evolved strains showed that single point mutations in pyruvate kinase, which competes with PEPCK for phosphoenolpyruvate, were sufficient to enable the use of PEPCK as the sole anaplerotic enzyme. The PEPCK reaction produces one ATP per carboxylation event, whereas the original route through pyruvate kinase and pyruvate carboxylase is ATP neutral. This increased ATP yield may prove crucial for engineering of efficient and low-cost anaerobic production of C(4) dicarboxylic acids in S. cerevisiae.
Collapse
|
5
|
Key process conditions for production of C(4) dicarboxylic acids in bioreactor batch cultures of an engineered Saccharomyces cerevisiae strain. Appl Environ Microbiol 2009; 76:744-50. [PMID: 20008165 DOI: 10.1128/aem.02396-09] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A recent effort to improve malic acid production by Saccharomyces cerevisiae by means of metabolic engineering resulted in a strain that produced up to 59 g liter(-1) of malate at a yield of 0.42 mol (mol glucose)(-1) in calcium carbonate-buffered shake flask cultures. With shake flasks, process parameters that are important for scaling up this process cannot be controlled independently. In this study, growth and product formation by the engineered strain were studied in bioreactors in order to separately analyze the effects of pH, calcium, and carbon dioxide and oxygen availability. A near-neutral pH, which in shake flasks was achieved by adding CaCO(3), was required for efficient C(4) dicarboxylic acid production. Increased calcium concentrations, a side effect of CaCO(3) dissolution, had a small positive effect on malate formation. Carbon dioxide enrichment of the sparging gas (up to 15% [vol/vol]) improved production of both malate and succinate. At higher concentrations, succinate titers further increased, reaching 0.29 mol (mol glucose)(-1), whereas malate formation strongly decreased. Although fully aerobic conditions could be achieved, it was found that moderate oxygen limitation benefitted malate production. In conclusion, malic acid production with the engineered S. cerevisiae strain could be successfully transferred from shake flasks to 1-liter batch bioreactors by simultaneous optimization of four process parameters (pH and concentrations of CO(2), calcium, and O(2)). Under optimized conditions, a malate yield of 0.48 +/- 0.01 mol (mol glucose)(-1) was obtained in bioreactors, a 19% increase over yields in shake flask experiments.
Collapse
|
6
|
Bruhn D, Wiskich JT, Atkin OK. Contrasting responses by respiration to elevated CO 2 in intact tissue and isolated mitochondria. FUNCTIONAL PLANT BIOLOGY : FPB 2007; 34:112-117. [PMID: 32689337 DOI: 10.1071/fp06247] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2006] [Accepted: 12/06/2006] [Indexed: 06/11/2023]
Abstract
The question of whether elevated concentrations of CO2 directly inhibit mitochondrial respiration in plants has received considerable attention. Although there is a growing consensus that elevated [CO2] rarely inhibits respiration of intact tissues, past studies have reported that elevated [CO2] does impact on O2 uptake in isolated mitochondria; what remains unclear, however, is the site(s) where elevated [CO2] impacts on mitochondrial electron transport (ETC). Here we investigated direct effects of [CO2] on respiratory activity of ETC enzymes, intact mitochondria and whole tissues using potato tubers (Solanum tuberosum L. cv. Desiree). Plots of O2 uptake against the redox poise of the ubiquinone (UQ) pool in isolated mitochondria were used to determine whether elevated [CO2] inhibits UQ-reducing and UQ-oxidising pathways differentially. Our results show that mitochondrial respiration was more inhibited via [CO2]/[HCO3-] effects on cytochrome c oxidase (COX) than on succinate dehydrogenase, with [HCO3-] rather than [CO2] inhibiting COX. However, the inhibitory effects at the mitochondrial level did not translate into inhibitory effects at the tissue level. Alternative oxidase (AOX) activity is normally absent in young potato tubers, as was the case in the present study. Thus, the lack of CO2-mediated inhibition at the tissue level was not the result of increases in AOX activity masking the effects of CO2 elsewhere in the respiratory system. We discuss whether the direct impact of elevated [CO2] on respiration is dependent on the rate of metabolic activity and flux control coefficients in individual tissues.
Collapse
Affiliation(s)
- Dan Bruhn
- Department of Biology, The University of York, PO Box 373, York YO10 5YW, UK
| | - Joseph T Wiskich
- School of Biological Sciences, Flinders University of South Australia, SA 5042, Australia
| | - Owen K Atkin
- Department of Biology, The University of York, PO Box 373, York YO10 5YW, UK
| |
Collapse
|
7
|
Greenway H, Armstrong W, Colmer TD. Conditions leading to high CO2 (>5 kPa) in waterlogged-flooded soils and possible effects on root growth and metabolism. ANNALS OF BOTANY 2006; 98:9-32. [PMID: 16644893 PMCID: PMC3291891 DOI: 10.1093/aob/mcl076] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2005] [Revised: 12/09/2005] [Accepted: 02/09/2006] [Indexed: 05/08/2023]
Abstract
AIMS Soil waterlogging impedes gas exchange with the atmosphere, resulting in low P(O2) and often high P(CO2). Conditions conducive to development of high P(CO2) (5-70 kPa) during soil waterlogging and flooding are discussed. The scant information on responses of roots to high P(CO2) in terms of growth and metabolism is reviewed. SCOPE P(CO2) at 15-70 kPa has been reported for flooded paddy-field soils; however, even 15 kPa P(CO2) may not always be reached, e.g. when soil pH is above 7. Increases of P(CO2) in soils following waterlogging will develop much more slowly than decreases in P(O2); in soil from rice paddies in pots without plants, maxima in P(CO2) were reached after 2-3 weeks. There are no reliable data on P(CO2) in roots when in waterlogged or flooded soils. In rhizomes and internodes, P(CO2) sometimes reached 10 kPa, inferring even higher partial pressures in the roots, as a CO2 diffusion gradient will exist from the roots to the rhizomes and shoots. Preliminary modelling predicts that when P(CO2) is higher in a soil than in roots, P(CO2) in the roots would remain well below the P(CO2) in the soil, particularly when there is ventilation via a well-developed gas-space continuum from the roots to the atmosphere. The few available results on the effects of P(CO2) at > 5 kPa on growth have nearly all involved sudden increases to 10-100 kPa P(CO2); consequently, the results cannot be extrapolated with certainty to the much more gradual increases of P(CO2) in waterlogged soils. Nevertheless, rice in an anaerobic nutrient solution was tolerant to 50 kPa CO2 being suddenly imposed. By contrast, P(CO2) at 25 kPa retarded germination of some maize genotypes by 50%. With regard to metabolism, assuming that the usual pH of the cytoplasm of 7.5 was maintained, every increase of 10 kPa CO2 would result in an increase of 75-90 mM HCO3(-) in the cytoplasm. pH maintenance would depend on the biochemical and biophysical pH stats (i.e. regulatory systems). Furthermore, there are indications that metabolism is adversely affected when HCO3(-) in the cytoplasm rises above 50 mM, or even lower; succinic dehydrogenase and cytochrome oxidase are inhibited by HCO3(-) as low as 10 mM. Such effects could be mitigated by a decrease in the set point for the pH of the cytoplasm, thus lowering levels of HCO3(-) at the prevailing P(CO2) in the roots. CONCLUSIONS Measurements are needed on P(CO2) in a range of soil types and in roots of diverse species, during waterlogging and flooding. Species well adapted to high P(CO2) in the root zone, such as rice and other wetland plants, thrive even when P(CO2) is well over 10 kPa; mechanisms of adaptation, or acclimatization, by these species need exploration.
Collapse
Affiliation(s)
- Hank Greenway
- School of Plant Biology, Faculty of Natural and Agricultural Sciences, The University of Western Australia, 35 Stirling Highway, Crawley 6009, WA, Australia.
| | | | | |
Collapse
|
8
|
Ranson SL, Walker DA, Clarke ID. Effects of carbon dioxide on mitochondrial enzymes from Ricinus. Biochem J 2006; 76:216-21. [PMID: 16748828 PMCID: PMC1204695 DOI: 10.1042/bj0760216] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- S L Ranson
- Department of Botany, King's College, Newcastle upon Tyne
| | | | | |
Collapse
|
9
|
Palet A, Ribas-Carbó M, Argilés JM, Azcón-Bieto J. Short-term effects of carbon dioxide on carnation callus cell respiration. PLANT PHYSIOLOGY 1991; 96:467-72. [PMID: 16668209 PMCID: PMC1080793 DOI: 10.1104/pp.96.2.467] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The addition of potassium bicarbonate to the electrode cuvette immediately stimulated the rate of dark O(2) uptake of photomixotrophic and heterotrophic carnation (Dianthus caryophyllus L.) callus, of Elodea canadensis (Michx) leaves, and of other plant tissues. This phenomenon occurred at pH values lower than 7.2 to 7.8, and the stimulation depended on the concentration of gaseous CO(2) in the solution. These stimulatory responses lasted several minutes and then decreased, but additional bicarbonate or gaseous CO(2) again stimulated respiration, suggesting a reversible effect. Carbonic anhydrase in the solution increased the stimulatory effect of potassium bicarbonate. The CO(2)/bicarbonate dependent stimulation of respiration did not occur in animal tissues such as rat diaphragm and isolated hepatocytes, and was inhibited by salicylhydroxamic acid in carnation callus cells and E. canadensis leaves. This suggested that the alternative oxidase was engaged during the stimulation in plant tissues. The cytochrome pathway was severely inhibited by CO(2)/bicarbonate either in the absence or in the presence of the uncoupler carbonylcyanide m-chlorophenyl hydrazone. The activity of cytochrome c oxidase of callus tissue homogenates was also inhibited by CO(2)/bicarbonate. The results suggested that high carbon dioxide levels (mainly free CO(2)) partially inhibited the cytochrome pathway (apparently at the oxidase level), and this block in electron transport elicited a large transient engagement of the alternative oxidase when present uninhibited.
Collapse
Affiliation(s)
- A Palet
- Departament de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | | | | | | |
Collapse
|
10
|
KUBO Y, INABA A, NAKAMURA R. Effects of High CO2 on Respiration in Various Horticultural Crops. ACTA ACUST UNITED AC 1989. [DOI: 10.2503/jjshs.58.731] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
11
|
ROLLE ROSAS, CHISM GRADYW. PHYSIOLOGICAL CONSEQUENCES OF MINIMALLY PROCESSED FRUITS AND VEGETABLES. J FOOD QUALITY 1987. [DOI: 10.1111/j.1745-4557.1987.tb00856.x] [Citation(s) in RCA: 201] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
12
|
Wanders RJ, Meijer AJ, Groen AK, Tager JM. Bicarbonate and the pathway of glutamate oxidation in isolated rat-liver mitochondria. EUROPEAN JOURNAL OF BIOCHEMISTRY 1983; 133:245-54. [PMID: 6852031 DOI: 10.1111/j.1432-1033.1983.tb07455.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
1. The factors affecting the pathway of glutamate oxidation were studied in isolated rat-liver mitochondria in incubations of 2-3 min. 2. It was found that bicarbonate at a physiological concentration has a profound effect on the pathway of glutamate oxidation. Ammonia formation via glutamate dehydrogenase is stimulated by bicarbonate [from 5.48 +/- 0.29 (n = 10) to 9.57 +/- 0.73 (n = 8) nmol X min-1 X mg protein-1], whereas aspartate formation via the transamination pathway is inhibited [from 38.41 +/- 2.24 (n = 9) to 24.56 +/- 3.28 (n = 6) nmol X min-1 X mg protein-1]. 3. Bicarbonate has no effect on the rate of transport of glutamate via the glutamate-hydroxyl translocator. 4. The interaction of bicarbonate with the pathway of glutamate oxidation occurs primarily at the level of succinate dehydrogenase, due to competitive inhibition of the enzyme by bicarbonate. 5. Inhibition by bicarbonate of the transamination pathway leads to a decrease in intramitochondrial 2-oxoglutarate, so that the deamination pathway is stimulated. 6. Using an equation which describes flux through glutamate dehydrogenase kinetically, it could be shown that the bicarbonate-induced decrease in intramitochondrial 2-oxoglutarate quantitatively accounts for the enhanced rate of deamination. 7. It is concluded that in the intact liver flux through glutamate dehydrogenase is sufficient to account for the ammonia formation required for urea synthesis from substrates such as alanine.
Collapse
|
13
|
|
14
|
Cockburn W. Relationships between Stomatal Behavior and Internal Carbon Dioxide Concentration in Crassulacean Acid Metabolism Plants. PLANT PHYSIOLOGY 1979; 63:1029-32. [PMID: 16660851 PMCID: PMC542964 DOI: 10.1104/pp.63.6.1029] [Citation(s) in RCA: 89] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Measurements of internal gas phase CO(2) concentration, stomatal resistance, and acid content were made in Crassulacean acid metabolism plants growing under natural conditions. High CO(2) concentrations, sometimes in excess of 2%, were observed during the day in a range of taxonomically widely separated plants (Opuntia ficus-indica L., Opuntia basilaris Engelm. and Bigel., Agave desertii Engelm., Yucca schidigera Roezl. ex Ortiges, Ananas comosus [L.] Merr., Aloe vera L., Cattleya sp. and Phalanopsis sp.) and below ambient air concentrations were observed at night.Stomatal resistance was always high when CO(2) concentration was high and experiments in which attempts were made to manipulate internal CO(2) concentrations gave data consistent with stomatal behavior in Crassulacean acid metabolism being controlled by internal CO(2) concentration. Exogenous CO(2) applied in darkness at a concentration similar to those observed in the light caused stomatal resistance to increase.In pads of Opuntia basilaris Engelm. and Bigel. subjected to severe water stress internal gas phase CO(2) concentrations exhibited fluctuations opposite in phase to fluctuations in acid content. Stomatal resistance remained high and the opening response to low CO(2) concentration was almost entirely eliminated.
Collapse
Affiliation(s)
- W Cockburn
- Department of Botany, University of Leicester, LE1 7RH, United Kingdom
| |
Collapse
|
15
|
Atkins CA. Carbon Dioxide Fixation in the Carbon Economy of Developing Seeds of Lupinus albus (L.). PLANT PHYSIOLOGY 1978; 62:486-90. [PMID: 16660544 PMCID: PMC1092156 DOI: 10.1104/pp.62.4.486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The effects of CO(2) concentration and illumination on net gas exchange and the pathway of (14)CO(2) fixation in detached seeds from developing fruits of Lupinus albus (L.) have been studied.Increasing the CO(2) concentration in the surrounding atmosphere (from 0.03 to 3.0% [v/v] in air) decreased CO(2) efflux by detached seeds either exposed to the light flux equivalent to that transmitted by the pod wall (500 to 600 micro-Einsteins per square meter per second) in full sunlight or held in darkness. Above 1% CO(2) detached seeds made a net gain of CO(2) in the light (up to 0.4 milligrams of CO(2) fixed per gram fresh weight per hour) but (14)CO(2) injected into the gas space of intact fruits (containing around 1.5% CO(2) naturally) was fixed mainly by the pod and little by the seeds.Throughout development seeds contained ribulose-1,5-bisphosphate carboxylase activity (EC 4.1.1.39), especially in the embryo (up to 99 micromoles of CO(2) fixed per gram fresh weight per hour) and phosphoenolpyruvate carboxylase (EC 4.1.1.31) in both testa (up to 280 micromoles of CO(2) fixed per gram fresh weight per hour) and embryo (up to 355 micromoles of CO(2) fixed per gram fresh weight per hour).In kinetic experiments the most significant early formed product of (14)CO(2) fixation in both light and dark was malate but in the light phosphoglyceric acid and sugar phosphates were also rapidly labeled. (14)CO(2) fixation in the light was linked to the synthesis of sugars and amino acids but in the dark labeled sugars were not formed.
Collapse
Affiliation(s)
- C A Atkins
- Department of Botany, University of Western Australia, Nedlands, Western Australia 6009
| |
Collapse
|
16
|
KING ADOUGLAS, NAGEL CHARLESW. INFLUENCE OF CARBON DIOXIDE UPON THE METABOLISM OF Pseudomonas aeruginosa. J Food Sci 1975. [DOI: 10.1111/j.1365-2621.1975.tb02202.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
17
|
Shipway MR, Bramlage WJ. Effects of carbon dioxide on activity of apple mitochondria. PLANT PHYSIOLOGY 1973; 51:1095-8. [PMID: 16658473 PMCID: PMC366412 DOI: 10.1104/pp.51.6.1095] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Effects of CO(2) on mitochondrial activity of apple (Malus pumila Mill. var. Richared Delicious) were studied in two ways. Immediate effects were determined by imposing 3 to 18% CO(2)-bicarbonate mixtures on isolated apple mitochondria, and long term effects were determined by extracting mitochondria from apples that had been stored for intervals in atmospheres containing 6 or 12% CO(2) plus 3% O(2). The CO(2)-bicarbonate systems had immediate and broad effects on mitochondrial oxidations: 18% CO(2) stimulated malate oxidation about 10%; suppressed alpha-ketoglutarate, citrate, and NADH oxidations about 10%; and suppressed fumarate, pyruvate, and succinate oxidations about 32%. The effects of lower CO(2) concentrations varied with substrates. Mitochondria isolated from fruit stored in 6 or 12% CO(2) possessed a reduced capacity to oxidize added succinate or NADH, but retained a marked sensitivity to CO(2)-bicarbonate mixtures. Respiratory control in these mitochondria was somewhat reduced, but CO(2) had not acted as a strong uncoupling agent.
Collapse
Affiliation(s)
- M R Shipway
- Department of Plant and Soil Sciences, University of Massachusetts, Amherst, Massachusetts 01002
| | | |
Collapse
|
18
|
Oxygen consumption in carbon dioxide anesthetized house flies, Musca domestica linn. (Diptera: Muscidae). ACTA ACUST UNITED AC 1973. [DOI: 10.1016/0300-9629(73)90255-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
19
|
Edwards LJ. Carbon dioxide anesthesia of the face fly, Musca autumnalis De Geer: effects of temperature and oxygen on knockdown rate. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. A, COMPARATIVE PHYSIOLOGY 1971; 38:509-16. [PMID: 4396822 DOI: 10.1016/0300-9629(71)90117-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
20
|
Zeylemaker WP, Klaasse AD, Slater EC, Veeger C. Studies on succinate dehydrogenase. VI. Inhibition by monocarboxylic acids. BIOCHIMICA ET BIOPHYSICA ACTA 1970; 198:415-22. [PMID: 5461693 DOI: 10.1016/0005-2744(70)90120-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
21
|
|
22
|
Kasbekar DK. Effect of carbon dioxide-bicarbonate mixtures on rat liver mitochondrial oxidative phosphorylation. BIOCHIMICA ET BIOPHYSICA ACTA 1966; 128:205-8. [PMID: 5972363 DOI: 10.1016/0926-6593(66)90163-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
23
|
Miller GW, Hsu WJ. Effects of carbon dioxide-bicarbonate mixtures on oxidative phosphorylation by cauliflower mitochondria. Biochem J 1965; 97:615-9. [PMID: 4286673 PMCID: PMC1264737 DOI: 10.1042/bj0970615] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
1. Carbon dioxide-bicarbonate mixtures markedly inhibited oxidation and phosphorylation rates of mitochondria prepared from cauliflower. Inhibition occurred with succinate, malate, citrate, isocitrate and NADH as substrates. 2. Indophenol-reductase systems with malate, succinate, isocitrate and NADH as substrates were inhibited by 5% and 15% carbon dioxide. Cytochrome c oxidase was not inhibited by 15% carbon dioxide.
Collapse
|
24
|
Punnett T, Iyer RV. The Enhancement of Photophosphorylation and the Hill Reaction by Carbon Dioxide. J Biol Chem 1964. [DOI: 10.1016/s0021-9258(20)82238-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
25
|
CANTINO EC, LOVETT JS. NON-FILAMENTOUS AQUATIC FUNGI: MODEL SYSTEMS FOR BIOCHEMICAL STUDIES OF MORPHOLOGICAL DIFFERENTIATION. ADVANCES IN MORPHOGENESIS 1964; 4:33-93. [PMID: 14284234 DOI: 10.1016/b978-1-4831-9950-4.50005-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
26
|
|
27
|
Ben-Yehoshua S, Robertson RN, Biale JB. Respiration & Internal Atmosphere of Avocado Fruit. PLANT PHYSIOLOGY 1963; 38:194-201. [PMID: 16655774 PMCID: PMC549905 DOI: 10.1104/pp.38.2.194] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Affiliation(s)
- S Ben-Yehoshua
- Department of Botany & Plant Biochemistry, University of California, Los Angeles, California
| | | | | |
Collapse
|
28
|
Abstract
Eastin, Jerry
D. (U.S. Army Chemical Corps, Frederick, Md.)
and Curtis B. Thorne
. Carbon dioxide fixation in
Bacillus anthracis
J. Bacteriol.
85:
410–417. 1963.—Virulent strains of
Bacillus anthracis
require a concentration of CO
2
greater than that of the normal atmosphere (air) for the production of capsular material (glutamyl polypeptide); avirulent strains may produce no polypeptide or may produce polypeptide in air. Fixation of C
14
O
2
by each of the three types tested resulted in labeling of aspartic acid, glycine, glutamic acid, succinic acid, and an unidentified organic acid. C
14
was detected in aspartic acid after less than 30 sec of exposure of cells to C
14
O
2
. Subsequent flushing of the cells with C
12
O
2
displaced C
14
from aspartic acid but not from the other labeled intermediates. Aspartic acid appears to be closely associated with the primary CO
2
-fixation product, and the data suggest a fairly direct carbon pathway from CO
2
to aspartic acid (oxaloacetic acid) to glutamic acid to glutamyl polypeptide.
Collapse
Affiliation(s)
- J D Eastin
- U.S. Army Chemical Corps, Biological Laboratories, Fort Detrick, Frederick, Maryland
| | | |
Collapse
|
29
|
|