Allelopathic activity of Ceratophyllum demersum L. and Najas marina ssp. intermedia (Wolfgang) Casper

Gross, Elisabeth; Erhard, Daniela; Iványi, Enikö

Allelopathic activity of Ceratophyllum demersum L. and Najas marina ssp. intermedia (Wolfgang) Casper

Dateien

16_Gross_etal_2003_Allelo_CD_NM.pdfGröße: 128.93 KBDownloads: 887

Datum

2003

Autor:innen

Gross, Elisabeth

Erhard, Daniela

Iványi, Enikö

URI (zitierfähiger Link)

http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-48724

Link zur Lizenz

Attribution-NonCommercial-NoDerivs 2.0 Generic

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Hydrobiologia. 2003, 506(1/3), pp. 583-589. ISSN 0018-8158. eISSN 1573-5117

Zusammenfassung

We investigated the allelopathic activity of two submersed macrophytes with different growth forms and nutrient uptake modes, Ceratophyllum demersum and Najas marina ssp. intermedia. A bioassay-directed method development revealed optimal extraction solvents for allelochemicals from both macrophytes. For Najas, 50% methanol and for Ceratophyllum 50% acetone yielded the strongest inhibition in the agar-diffusion assay with various filamentous or chroococcal cyanobacteria as target species. Further fractionation by liquid liquid extraction (LLE) and solid phase extraction (SPE) procedures showed that both aquatic plants appear to have more than one active fraction, one being hydrophilic and one moderately lipophilic. The water-soluble allelochemicals may inhibit phytoplankton whereas the lipophilic allelochemicals may act through direct cell cell contact, e.g., against epiphytes. Bothmacrophytes also exuded allelopathically active compounds into the surrounding medium as shown by SPE of their incubation water.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

allelochemical, allelopathy, aquatic angiosperm, cyanobacteria, exudation, submersed macrophyte

Zitieren

ISO 690

GROSS, Elisabeth, Daniela ERHARD, Enikö IVÁNYI, 2003. Allelopathic activity of Ceratophyllum demersum L. and Najas marina ssp. intermedia (Wolfgang) Casper. In: Hydrobiologia. 2003, 506(1/3), pp. 583-589. ISSN 0018-8158. eISSN 1573-5117

BibTex

@article{Gross2003Allel-6666,
  year={2003},
  title={Allelopathic activity of Ceratophyllum demersum L. and Najas marina ssp. intermedia (Wolfgang) Casper},
  number={1/3},
  volume={506},
  issn={0018-8158},
  journal={Hydrobiologia},
  pages={583--589},
  author={Gross, Elisabeth and Erhard, Daniela and Iványi, Enikö}
}

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