Results 21 to 30 of about 1,422,916 (387)

Respiratory electron transfer pathways in plant mitochondria

open access: yesFrontiers in Plant Science, 2014
The respiratory electron transport chain (ETC) couples electron transfer from organic substrates onto molecular oxygen with proton translocation across the inner mitochondrial membrane.
Peter eSchertl, Hans-Peter eBraun
doaj   +1 more source

Interaction of soil enzyme activity and regeneration of Juniperus excelsa in Chaharbagh habitat of Gorgan [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2011
Juniperus excelsa has wider distribution than other species of Juniperus in Iran. In most of habitats, different individuals have rough conditions especially in soil.
"Aleme Bagheri   +3 more
doaj   +1 more source

Molecular mechanisms of the non-coenzyme action of thiamin in brain. Biochemical, structural and pathway analysis [PDF]

open access: yes, 2015
Thiamin (vitamin B1) is a pharmacological agent boosting central metabolism through the action of the coenzyme thiamin diphosphate (ThDP). However, positive effects, including improved cognition, of high thiamin doses in neurodegeneration may be ...
Andrey, Vovk   +9 more
core   +1 more source

Functional Characterization and Structural Analysis of NADH Oxidase Mutants from Thermus thermophilus HB27: Role of Residues 166, 174, and 194 in the Catalytic Properties and Thermostability

open access: yesMicroorganisms, 2019
The Thermus thermophilus strain HB27 NADH-oxidase (Tt27-NOX) catalyzes the oxidation of nicotinamide adenine dinucleotide (NAD(P)H) by reducing molecular oxygen to hydrogen peroxide in a two-electron transfer mechanism.
Javier Rocha-Martin   +5 more
doaj   +1 more source

Laboratory tests for aerobic bioremediation of the contaminated sites in the Czech Republic

open access: yesPlant, Soil and Environment, 2020
Laboratory-scale testing methods applicable to evaluation of contaminated subsurface microbial communities are discussed in relation to their potential in supporting effective site bioremediation. Both culture-dependent and culture-independent techniques
Jana Chumchalová, Martin Kubal
doaj   +1 more source

Stereospecificity of cinnamyl alcohol dehydrogenase and synthesis of stereospecifically labelled coniferyl alcohol [PDF]

open access: yes, 1978
Using horse liver alcohol dehydrogenase, stereospecifically tritiated (R)- and (S)-(γ-3H)-coniferyl alcohol was synthesized. Using both of these substrates it was demonstrated that cinnamyl alcohol dehydrogenase from lignifying Forsythia tissue ...
Klischies, Martina   +2 more
core   +1 more source

Impact of canopy and seasoning on activity of soil enzymes in some Juniper habitatsof Iran [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2010
Soil enzyme analysis is a widely used technique for examining nutrient cycling processes in soil. These enzymes are sensitive to the effects of anthropogenic activities and disturbance on the soil and provide valuable assessing of the metabolic response ...
Mohammad Matinizadeh   +3 more
doaj  

Genome-wide analysis of the UDP-glucose dehydrogenase gene family in Arabidopsis, a key enzyme for matrix polysaccharides in cell walls [PDF]

open access: yes, 2007
Arabidopsis cell walls contain large amounts of pectins and hemicelluloses, which are predominantly synthesized via the common precursor UDP-glucuronic acid.
Klinghammer, Michaela, Tenhaken, Raimund
core   +1 more source

Microbial Activity in Forest Soil Under Beech, Spruce, Douglas Fir and Fir

open access: yesContemporary Agriculture, 2016
The aim of this research was to investigate the microbial activity in forest soil from different sites under deciduous and coniferous trees in Serbia.
Hajnal-Jafari Timea   +4 more
doaj   +1 more source

Application of Biochar Produced from Crop Residues on Trace Elements Contaminated Soils: Effects on Soil Properties, Enzymatic Activities and Brassica rapa Growth

open access: yesAgronomy, 2021
Soil pollution by trace elements is a huge problem around the globe. In addition, heavy metal immobilization and primary productivity are two soil ecosystem services of contemporary importance to society.
Paloma Campos   +3 more
doaj   +1 more source

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