one of the major problems about the chelant-enhanced phytoextraction is the potential metal leaching associated with chelant application. a glasshouse pot experiment was conducted to investigate phytoextraction efficiency of common reed (phragmites australis (cav.) trin. ex steudel) for lead and chromium and to determine edta (ethylenediaminetetraacetic acid) enhancement of the mobility and phy...

A number of hypotheses have been suggested to explain why invasive exotic plants dramatically increase their abundance upon transport to a new range. The novel weapons hypothesis argues that phytotoxins secreted by roots of an exotic plant are more effective against naïve resident competitors in the range being invaded. The common reed Phragmites australis has a diverse population structure inc...

Global change is predicted to promote plant invasions world-wide, reducing biodiversity and ecosystem function. Phenotypic plasticity may influence the ability of introduced plant species to invade and dominate extant communities. However, interpreting differences in plasticity can be confounded by phylogenetic differences in morphology and physiology. Here we present a novel case investigating...

We investigated biodegradation of technical nonylphenol (tNP) in Phragmites australis rhizosphere sediment by conducting degradation experiments using sediments spiked with tNP. Accelerated tNP removal was observed in P. australis rhizosphere sediment, whereas tNP persisted in unvegetated sediment without plants and in autoclaved sediment with sterile plants, suggesting that the accelerated tNP...

Fluoride levels were determined in roots, stalks, and leaves of common underwater reeds (Phragmites australis) harvested in 2001 from a polluted reservoir near Luboń and an unpolluted reservoir near Radzewice, Poland. The mean fluoride concentrations in the roots, stalks and leaves of the polluted reservoir were, respectively, 213, 36.8, 51.1 mg F/kg dry mass. In the unpolluted reservoir they w...

A recent field known as epigenetics has shown that the environment can impact gene expression through chemical modifications, such as methylation, of genes. This provides a mechanism for acclimation to be inherited across mitotic and meiotic generations, thus more stable than physiological acclimation, and permits more reversible adaptation at time scales shorter than natural selection. We exam...

AIMS We use a regional comparison of Phragmites australis (common reed) subsp. americanus, P. australis subsp. berlandieri and introduced P. australis (possibly five sublineages) in the Chesapeake Bay, the St Lawrence River, Utah and the Gulf Coast to inform a North American perspective on P. australis invasion patterns, drivers, impacts and research needs. FINDINGS AND RESEARCH NEEDS: Our regi...

Over the past century, the spread of the common reed (Phragmites australis) has had a dramatic impact on wetland communities across North America. Although native populations of Phragmites persist, introduced invasive populations have dominated many sites and it is not clear if the two types can interbreed. This study compares patterns of differentiation in 10 microsatellite loci among North Am...

In this study, we compared ecological characteristics of wetland vegetation in a series of restoration projects that were carried out in the wetlands of Yellow River Delta. The investigated characteristics include plant composition structure, species diversity and community similarity in three kinds of Phragmites australis wetlands, i.e. restored P. australis wetlands (R1, R2, R3 and R4: restor...