Results 181 to 190 of about 8,714 (205)
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Autotrophy in Stream Ecosystems
BioScience, 1978where the import of organic matter from outside the system is the predominant feature. Little has been done to test the hypotheses derived from these systems against information obtained from other lotic systems in different vegetational regimes (biomes) or arising along a single river system from its source to the sea.
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Chemical Engineering Journal, 2016
Abstract The removal of perchlorate (ClO4−) and nitrate (NO3−) from drinking water was investigated in a combined reactor of sulfur autotrophy (S-compartment) and electrochemical hydrogen autotrophy (H-compartment). The removal efficiencies of NO3− and ClO4− in the S-compartment and H-compartment were affected by hydraulic retention time (HRT) and ...
Mengchun Gao +9 more
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Abstract The removal of perchlorate (ClO4−) and nitrate (NO3−) from drinking water was investigated in a combined reactor of sulfur autotrophy (S-compartment) and electrochemical hydrogen autotrophy (H-compartment). The removal efficiencies of NO3− and ClO4− in the S-compartment and H-compartment were affected by hydraulic retention time (HRT) and ...
Mengchun Gao +9 more
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Die obligate Autotrophie der Nitrifikationsbakterien
Archiv f�r Mikrobiologie, 19491. Langfristige Einwirkung organischer Stoffe wie Boillon, Hefewasser, Nahrstoff-Heyden, Glykose usw. auf Nitrifikationsbakterien in ausnitrifizierter Nahrlosung fuhrte zu einer Zellschadigung. 2. Eine Zellvermehrung auf organischer Substanz wurde in keinem Fall beobachtet, ebensowenig gelang eine Umzuchtung autotropher Formen in ...
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Autotrophy in Groundwater Ecosystems
2009The major role in global net CO2 fixation plays photosynthesis of green plants, algae and cyanobacteria, but other microorganisms are also important concerning autotrophy; i.e. autotrophic microorganisms can be found in most bacterial groups (Eubacteria) and there are even numerous representatives within the Archaea. CO2 fixation is not only one of the
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Plasmid-related anaerobic autotrophy of the novel archaebacterium Sulfolobus ambivalens
Nature, 1985Three different species of the genus Sulfolobus, S. acidocaldarius, S. solfataricus (= Caldariella) and S. brierleyi, have been distinguished by the conditions required for optimal growth, by the component patterns of their DNA-dependent RNA polymerases and by DNA sequence data.
W, Zillig +6 more
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Development of auxin autotrophy in Nicotiana tabacum callus cultures
Physiologia Plantarum, 1994Changes of auxin and ethylene metabolism of Nicotiana tabacum var. Xanthi callus were investigated in relation to auxin‐independent growth. During the habituation process, changes occur progressively in hormone metabolism in auxin‐heterotrophic tissues: the potential for the destruction of indoleacetic acid (IAA) increases, the IAA level in the ...
M. Szabo, E. Koves, I. Somogyi
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Enzymes and genes of microbial autotrophy.
Microbiological sciences, 1990Ribulose 1,5-bisphosphate carboxylase/oxygenase and phosphoribulokinase are enzymes which are unique to, and essential for, the operation of the Calvin cycle. Biochemical and genetic studies of these enzymes in autotrophic bacteria are providing information on the evolution of autotrophy, regulation of CO2 assimilation and on the prospects of ...
G A, Codd, D, Vakeria
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Hydrogen-Sulfur Autotrophy in the Hyperthermophilic Archaebacterium,Pyrodictium brockii
Biotechnology and Genetic Engineering Reviews, 1990Abstract : This work focused on the elucidation of physiological aspects of the hyperthermophilic archaea Pyrodictium brockii and Pyrococcus furiosus. Continuous cultivation methods were developed for both organisms to facilitate metabolic studies. For P.
T D, Pihl +5 more
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Hypothesis on the Synchronistic Evolution of Autotrophy and Heterotrophy
Trends in Biochemical Sciences, 2018All life on earth requires a source of energy and organic carbon. There has been a continuous debate on whether autotrophic or heterotrophic metabolism came first. A very similar discussion exists concerning the advent of oxygenic photosynthesis and aerobic respiration.
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Evolutionary aspects of autotrophy
Microbiological Reviews, 1978J R, Quayle, T, Ferenci
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