Adjustment of microbial nitrogen use efficiency to carbon:nitrogen imbalances regulates soil nitrogen cycling
- M. Mooshammer, W. Wanek, Andreas Richter
- Environmental ScienceNature Communications
- 16 April 2014
It is found that microbes retain most immobilized organic N when they are N limited, resulting in low N mineralization, however, when the metabolic control of microbial decomposers switches from N to C limitation, they release an increasing fraction of organic N as ammonium (low NUE).
Natural 15N abundance of plants and soils under different management practices in a montane grassland
- M. Watzka, K. Buchgraber, W. Wanek
- Environmental Science
- 1 July 2006
Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil
- B. Wild, J. Schnecker, Andreas Richter
- Chemistry, MedicineSoil Biology and Biochemistry
- 1 August 2014
Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils
- B. Wild, N. Gentsch, Andreas Richter
- Environmental ScienceScientific Reports
- 9 May 2016
Comparing 119 soils from four locations across the Siberian Arctic found that an increased availability of plant-derived organic C particularly stimulated decomposition in subsoil horizons where most of the arctic soil carbon is located, which can accelerate net ecosystem C losses, and amplify the positive feedback to global warming.
Drought history affects grassland plant and microbial carbon turnover during and after a subsequent drought event
- L. Fuchslueger, M. Bahn, Andreas Richter
- Biology, MedicineJournal of Ecology
- 24 May 2016
Drought history (DH) does not affect the responses of the microbial community to further droughts and rewetting, but alters microbial functioning, particularly the turnover of recent plant‐derived carbon, during and after further drought periods.
An Analysis of Diet Quality, How It Controls Fatty Acid Profiles, Isotope Signatures and Stoichiometry in the Malaria Mosquito Anopheles arabiensis
- R. Hood-Nowotny, Bettina Schwarzinger, J. Gilles
- MedicinePLoS ONE
- 25 October 2012
Diet had the greatest impact on fatty acid profiles of the mosquitoes, which exhibited a high degree of dietary routing, characteristic of generalist feeders, and it was concluded that nitrogen availability in the larval diet controlled teneral mosquito size and that tenersal CN ratio is a sex- and species-specific fixed parameter.
Metabolic Features of Protochlamydia amoebophila Elementary Bodies – A Link between Activity and Infectivity in Chlamydiae
- B. S. Sixt, A. Siegl, M. Horn
- BiologyPLoS Pathogens
- 1 August 2013
It is demonstrated that D-glucose is utilized by P. amoebophila EBs and provided evidence that metabolic activity in the extracellular stage of chlamydiae is of major biological relevance as it is a critical factor affecting maintenance of infectivity.
Increased temperature causes different carbon and nitrogen processing patterns in two common intertidal foraminifera ( Ammonia tepida and Haynesina germanica )
- J. Wukovits, A. Enge, W. Wanek, M. Watzka, P. Heinz
- Environmental Science
- 9 June 2017
Higher temperatures have a significant negative effect on the carbon exploitation of H. germanica, and for A. tepida, higher carbon uptake rates and the enhanced tolerance range for higher temperatures could outline an advantage in warmer periods if the main food source consists of chlorophyte phytodetritus.
Characterization of a thaumarchaeal symbiont that drives incomplete nitrification in the tropical sponge Ianthella basta
- F. Moeller, N. Webster, M. Wagner
- BiologybioRxiv
- 23 January 2019
A thaumarchaeal symbiont residing in the reef sponge Ianthella basta is thoroughly characterized and demonstrated by using a combination of molecular tools and isotope techniques, that it is the only ammonia-oxidizer in its host.
Food supply and size class depending variations in phytodetritus intake in the benthic foraminifer Ammonia tepida
- J. Wukovits, P. Bukenberger, P. Heinz
- Environmental Science, GeographyBiology Open
- 14 March 2018
The food intake of Ammonia tepida (marine Protist) is strongly related to food supply and individual size, and juveniles play a major role in coastal phytodetritus processing.
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