@article{Nechwatal2008Flood-6868,
  year={2008},
  doi={10.1007/s10750-008-9476-z},
  title={Flooding events and rising water temperatures increase the significance of the reed pathogen Pythium phragmitis as a contributing factor in the decline of Phragmites australis},
  number={1},
  volume={613},
  issn={0018-8158},
  journal={Hydrobiologia},
  pages={109--115},
  author={Nechwatal, Jan and Wielgoss, Anna Marina and Mendgen, Kurt}
}

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    <dcterms:title>Flooding events and rising water temperatures increase the significance of the reed pathogen Pythium phragmitis as a contributing factor in the decline of Phragmites australis</dcterms:title>
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    <dc:creator>Wielgoss, Anna Marina</dc:creator>
    <dcterms:abstract xml:lang="eng">Pythium species are economically significant soilborne plant pathogens with worldwide distribution, causing seedling damping-off or root rot diseases. Pythium phragmitis is a newly described pathogen of common reed (Phragmites australis), widespread in the reed-belt of Lake Constance, Germany. It is highly aggressive towards reed leaves and seedlings, but obviously does not affect roots. Inthe context of  reed decline  phenomena, P. phragmitis infection of reed inundated during flooding events may be of particular significance. We could show that flooding itself is not necessarily detrimental for reed plants. In the presence of the pathogen, however, most submerged leaves and plants were killed within several weeks. Clipped plants did not show regrowth in the Pythium infested treatments. Significant losses in assimilating leaf area of reeds could, thus, be the result of Pythium infection rather than of flooding alone. Therefore, we suggest that the combination of extended flooding and the presence of P. phragmitis might considerably contribute to  reed decline  at Lake Constance. In parallel, we could show that pathogenicity and spread of this species are considerably favoured by rising temperatures. Since an increase in average water temperature has been found for Lake Constance, we propose that P. phragmitis could be an important factor in the dieback of reed stands likely to be promoted by predicted climate change phenomena.</dcterms:abstract>
    <dc:contributor>Wielgoss, Anna Marina</dc:contributor>
    <dcterms:bibliographicCitation>First publ. in: Hydrobiologia 613 (2008), 1, pp. 109 115</dcterms:bibliographicCitation>
    <dc:contributor>Mendgen, Kurt</dc:contributor>
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    <dcterms:issued>2008</dcterms:issued>
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    <dc:contributor>Nechwatal, Jan</dc:contributor>
    <dc:creator>Mendgen, Kurt</dc:creator>
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