SFB/TRR 38: Project B4 Phase 2: Formation and importance of functional redundancy for microbial nitrogene transformation during initial states of ecosystem development
Description:
Nitrogen is an important factor for the functionality and development of biotic communities in terrestrial ecosystems. Especially in young ecosystems nitrogen is a limiting factor. Thus optimal nitrogen turnover, including an efficient mineralization of organic nitrogen compounds and low denitrification rates are important for a sustainable development of vegetation. Furthermore dinitrogen fixation plays an important role for the additional nitrogen input into the soil. The aim of this subproject is to detect and quantify nitrogen cycle relevant processes on gene, transcript and enzyme levels and to compare it with the respective in situ activities. The main focus is to study the influence of special environmental parameters (e.g. pH, temperature, soil humidity), pioneer plant species and plant communities. The data should be used to deduce the formation and relevance of functional genetic redundancy in the regulation of nitrogen transforming processes in developing ecosystems. The subproject is strongly linked to the subprojects B1 and B3, in order to detect nitrogen and carbon fluxes in the rhizosphere and litter layer of herbaceous plants. The work is directly related to the central hypothesis 1 and 3. The collected data provide the basis for the planned structure and process model (TP C5).
Executive Institute:
Institute for Soil Science (IBÖ) Details of Institute for Soil Science
Parent institution:
Helmholtz Zentrum München, GmbH German Research Center for Environmental Health (GSF) Details of (GSF) (Bavaria)
Contract period:
01. 01. 2007 - 01. 01. 2010
Participating Institutions:
- Environmental Microbiology Details of Environmental Microbiology
Collaborative Project:
SFB/TRR 38: Structures and processes of the initial ecosystem development phase in an artificial water catchment Details of SFB/TRR 38: Structures and processes of the initial ecosystem development phase in an artificial water catchment
Funding Programme:
- DFG - Transregional Collaborative Research Centres Details of DFG - Transregional Collaborative Research Centres
Subject:
- Soil science
Purpose of research:
Basic research
Funding Institutions:
- German Research Council (DFG) (DFG) Details of (DFG)
Project Management Agency:
- German Research Council (DFG) (DFG) Details of DFG