32 Result(s)
within
Hans-Hermann Richnow
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Article
Open AccessTracking deuterium uptake in hydroponically grown maize roots using correlative helium ion microscopy and Raman micro-spectroscopy
Investigations into the growth and self-organization of plant roots is subject to fundamental and applied research in various areas such as botany, agriculture, and soil science. The growth activity of the pla...
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Article
Open AccessAcetyl-CoA-Carboxylase 1-mediated de novo fatty acid synthesis sustains Lgr5+ intestinal stem cell function
Basic processes of the fatty acid metabolism have an important impact on the function of intestinal epithelial cells (IEC). However, while the role of cellular fatty acid oxidation is well appreciated, it is n...
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Article
Comparative proteomics unravelled the hexachlorocyclohexane (HCH) isomers specific responses in an archetypical HCH degrading bacterium Sphingobium indicum B90A
Hexachlorocyclohexane (HCH) is a persistent organochlorine pesticide that poses threat to different life forms. Sphingobium indicum B90A that belong to sphingomonad is well-known for its ability to degrade HCH is...
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Reference Work Entry In depth
Compound-Specific Stable Isotope Analysis (CSIA) for Evaluating Degradation of Organic Pollutants: An Overview of Field Case Studies
Compound-specific stable isotope analysis (CSIA) is an advanced monitoring tool for evaluating natural and stimulated degradation of organic pollutants at contaminated field sites. CSIA enables the deciphermen...
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Reference Work Entry In depth
Compound-Specific Isotope Analysis for Studying the Biological Degradation of Hydrocarbons
Compound-specific isotope fractionation analysis (CSIA) has become a promising approach for studying biological degradation of hydrocarbons in the environment. The approach makes use of isotope fractionation p...
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Article
Anaerobic oxidation of ethane by archaea from a marine hydrocarbon seep
Ethane is the second most abundant component of natural gas in addition to methane, and—similar to methane—is chemically unreactive. The biological consumption of ethane under anoxic conditions was suggested b...
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Living Reference Work Entry In depth
Compound-Specific Stable Isotope Analysis (CSIA) for Evaluating Degradation of Organic Pollutants: An Overview of Field Case Studies
Compound-specific stable isotope analysis (CSIA) is an advanced monitoring tool for evaluating natural and stimulated degradation of organic pollutants at contaminated field sites. CSIA enables the deciphermen...
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Living Reference Work Entry In depth
Compound-Specific Isotope Analysis for Studying the Biological Degradation of Hydrocarbons
Compound-specific isotope fractionation analysis (CSIA) has become a promising approach for studying biological degradation of hydrocarbons in the environment. The approach makes use of isotope fractionation p...
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Article
Open AccessMycelium-mediated transfer of water and nutrients stimulates bacterial activity in dry and oligotrophic environments
Fungal–bacterial interactions are highly diverse and contribute to many ecosystem processes. Their emergence under common environmental stress scenarios however, remains elusive. Here we use a synthetic microb...
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Article
Thermophilic archaea activate butane via alkyl-coenzyme M formation
The anaerobic formation and oxidation of methane involve unique enzymatic mechanisms and cofactors, all of which are believed to be specific for C1-compounds. Here we show that an anaerobic thermophilic enrichmen...
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Article
Open AccessLessons learned from the microbial ecology resulting from different inoculation strategies for biogas production from waste products of the bioethanol/sugar industry
During strategic planning of a biogas plant, the local availability of resources for start-up and operation should be taken into consideration for a cost-efficient process. Because most bioethanol/sugar indust...
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Chapter
CO2BioPerm—Influence of Bio-geochemical CO2-Transformation Processes on the Long-Term Permeability
The RECOBIO projects (Hoth et al. in Recycling of sequestrated CO2 by microbial—biogeochemical transformation in the deep subsurface—RECOBIO 2009a; Geotechnol Sci Rep 14:58–65, 2009b; Untersuchung der biogeochemi...
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Article
Diversity of dechlorination pathways and organohalide respiring bacteria in chlorobenzene dechlorinating enrichment cultures originating from river sludge
Anaerobic reductive dechlorination of hexachlorobenzene (HCB) and three isomers of tetrachlorobenzene (TeCB) (1,2,3,4-, 1,2,3,5- and 1,2,4,5-TeCB) was investigated in microcosms containing chloroaromatic conta...
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Chapter
Relevance of Deep-Subsurface Microbiology for Underground Gas Storage and Geothermal Energy Production
This chapter gives the reader an introduction into the microbiology of deep geological systems with a special focus on potential geobiotechnological applications and respective risk assessments. It has been kn...
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Chapter
Bioremediation via in situ Microbial Degradation of Organic Pollutants
Contamination of soil and natural waters by organic pollutants is a global problem. The major organic pollutants of point sources are mineral oil, fuel components, and chlorinated hydrocarbons. Research from t...
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Article
Erratum to: Investigation of the geochemical impact of CO2 on shallow groundwater: design and implementation of a CO2 injection test in Northeast Germany
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Article
Influence of mass transfer on stable isotope fractionation
Biodegradation of contaminants is a common remediation strategy for subsurface environments. To monitor the success of such remediation means a quantitative assessment of biodegradation at the field scale is r...
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Article
Investigation of the geochemical impact of CO2 on shallow groundwater: design and implementation of a CO2 injection test in Northeast Germany
A small scale and temporally limited CO2 injection test was performed in a shallow aquifer to investigate the geochemical impact of CO2 upon such aquifers and to apply and verify different monitoring methods. Det...
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Article
Detection of monochlorobenzene metabolizing bacteria under anoxic conditions by DNA-stable isotope probing
Cultivation-independent analyses were applied to study the structural diversity of the bacterial community which developed in groundwater inoculated microcosms actively metabolizing monochlorobenzene (MCB) und...
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Article
Experimental investigation of nitrogen and oxygen isotope fractionation in nitrate and nitrite during denitrification
In batch experiments, we studied the isotope fractionation of nitrogen and oxygen during denitrification of two bacterial strains (Azoarcus sp. strain DSM 9056 and Pseudomonas pseudoalcaligenes strain F10). Denit...
