%0 Thesis
%A Le Marié, C.
%T Influence of nutrient and metal concentration on root exudation under waterlogged conditions
%I RWTH Aachen
%V Diplom (Univ.)
%M PreJuSER-14847
%D 2011
%Z Record converted from VDB: 12.11.2012
%Z Aachen, RWTH, Dipl., 2011
%X The worldwide energy demand constantly increases and the search for regenerative
%X alternatives is inevitable. A concept that exploits a bioenergy source in situ is the plant
%X Microbial fuel cell (MFC). The plant-MFC uses the natural interplay between electrogenic
%X bacteria in soil and plants to convert solar energy into green electricity.
%X The interplay between bacteria and plant is based on the rhizodeposition of organic
%X compounds into the rhizosphere. It is known, that low phosphate (P) content in the soil as
%X well as a high Aluminum (Al) concentration can induce an enhanced exudation of organic
%X compounds by plants into the rhizosphere. However, so far little is known about the factors
%X that influence the rhizodeposition under waterlogged conditions. Thus, the aim of this study
%X was to increase the exudation of several plants into the rhizosphere under waterlogged
%X conditions by treating the plants with low P content or Al addition. Total organic carbon and
%X inorganic carbon analyses indicated that a reduction of P supply induced a twofold increased
%X release of organic compounds in waterlogged Spartina anglica, a threefold in Hemarthria
%X altissima and a fivefold in Glyceria maxima plants. In contrast, the addition of Al did not affect
%X the root exudation of any screened plant species. It is likely, that the screened plants use
%X other mechanisms to detoxify the Al in the nutrient solution such as absorption into the
%X symplasm or pH modifications of the rhizosphere. In future studies it should be tested, if a
%X reduction of P in the plant-MFC is a possible tool to increase the productivity of the plant-
%X MFC without affecting plant development and health.
%F PUB:(DE-HGF)10
%9 Diploma Thesis
%U https://juser.fz-juelich.de/record/14847