Factors influencing the cultivability of lake water bacteria

Bussmann, Ingeborg; Philipp, Bodo; Schink, Bernhard

Factors influencing the cultivability of lake water bacteria

Dateien

Factors_influencing_the_cultivability_2001.pdfGröße: 227.93 KBDownloads: 491

Datum

2001

Autor:innen

Bussmann, Ingeborg

Philipp, Bodo

Schink, Bernhard

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Microbiological Methods. 2001, 47(1), pp. 41-50. ISSN 0167-7012. Available under: doi: 10.1016/S0167-7012(01)00289-5

Zusammenfassung

Counting bacteria in natural water samples by cultivation yields only low recovery efficiencies ca. 1%., compared to total counts obtained after 4,6-diamidino-2-phenylindol DAPI.staining. In order to optimize the cultivation of heterotrophic planktonic bacteria from Lake Constance Germany., selected parameters of the medium composition were modified. The most important factor was the concentration of organic substrate nutrient broth plus yeast extract., which significantly influenced the Amost probable numberB obtained in liquid growth medium. Reduced oxygen concentrations 3 12%. lowered the Amost probable numberB. Addition of N-acyl homoserine lactones to the medium increased the cultivability slightly. Low substrate concentrations w0.03 0.06% wrv.x, an incubation atmosphere of 21% oxygen at 16 8C for 4 weeks were optimal and increased the cultivability ("most probable number" related to total bacterial counts.to an average cultivability of 1811%, ns8.. The results indicate that cultivabilities of heterotrophic bacteria from lakewater samples can be significantly increased by modifying the cultivation methods.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Counting efficiency, Heterotrophic aerobes, Lake Constance, N-acyl homoserine lactones, Oxygen stress, Planktonic bacteria

Zitieren

ISO 690

BUSSMANN, Ingeborg, Bodo PHILIPP, Bernhard SCHINK, 2001. Factors influencing the cultivability of lake water bacteria. In: Journal of Microbiological Methods. 2001, 47(1), pp. 41-50. ISSN 0167-7012. Available under: doi: 10.1016/S0167-7012(01)00289-5

BibTex

@article{Bussmann2001Facto-6936,
  year={2001},
  doi={10.1016/S0167-7012(01)00289-5},
  title={Factors influencing the cultivability of lake water bacteria},
  number={1},
  volume={47},
  issn={0167-7012},
  journal={Journal of Microbiological Methods},
  pages={41--50},
  author={Bussmann, Ingeborg and Philipp, Bodo and Schink, Bernhard}
}

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