Many macrophyte species (emergent type, e.g. Typha, Phragmites, Scirpus;
floating and submerged aquatic macrophytes, e.g. Azolla, Echhornia, Trapa, Ipomea, Myriophyllum, etc.) take up nutrients from nutrient rich wastewater and eutrophic water. Majority of studies have focused on nutrient retention in wetlands or nutrient uptake by hydrophytes subject to different physicochemical factors. Whereas little information is available on interactions between plant species and rhizospheric bacteria, interactions among macrophytes, actual mechanism of nutrient uptake, sequestration and reclamation, stress tolerance capacity of macrophytes and biochemical markers, etc.
Hi,
I remember a PhD thesis about root associated bacteria from 2003 at our university. The full text can be found online:
Münch, Christiane (2003) Die Bedeutung der wurzelassoziierten Mikroorganismen für die Stickstoffumsetzungen in Pflanzenkläranlagen. http://nbn-resolving.de/urn:nbn:de:swb:14-1067340834875-91707
It is in German, but you may have a look at the references given therein.
Here another text in German from a related group: Kuschk et al. (2008) Wetlands - future potential and research need (in German) http://dx.doi.org/10.1002/cite.200800085
and a more recent review (in English):
Mench, M. (2010) Successes and limitations of phytotechnologies at field scale: outcomes, assessment and outlook from COST Action 859. http://dx.doi.org/10.1007/s11368-010-0190-x
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