Open Marien Archief | Vlaams Instituut voor de Zee

Vlaams Instituut voor de Zee

Platform voor marien onderzoek

Open Marien Archief

Het Open Marien Archief van België (OMA) biedt vrije toegang tot de digitale publicaties over de Vlaamse kust en het Belgisch deel van de Noordzee, en alle andere mariene, estuariene en kustgebonden publicaties van Belgische auteurs en wetenschappers en van buitenlandse wetenschappers geaffilieerd aan een Belgische instelling.

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How endo- is endo-? Surface sterilization of delicate samples: A Bryopsis (Bryopsidales, Chlorophyta) case study
Hollants, J.; Leliaert, F.; De Clerck, O.; Willems, A. (2010). How endo- is endo-? Surface sterilization of delicate samples: A Bryopsis (Bryopsidales, Chlorophyta) case study. Symbiosis 51(1): 131-138.
In: Symbiosis. Springer: Philadelphia, Pa.. ISSN 0334-5114, meer
Peer reviewed article  

Beschikbaar in Auteurs 

    Bacteria [WoRMS]; Bryopsis J.V.Lamouroux, 1809 [WoRMS]; Chlorophyta [WoRMS]; Marien
Author keywords
    Bryopsis ; Endosymbionts; Endosymbiotic bacteria; Marine green algae; Surface sterilization

Auteurs  Top 

    In the search for endosymbiotic bacteria, elimination of ectosymbionts is a key point of attention. Commonly, the surface of the host itself or the symbiotic structures are sterilized with aggressive substances such as chlorine or mercury derivatives. Although these disinfectants are adequate to treat many species, they are not suitable for surface sterilization of delicate samples. In order to study the bacterial endosymbionts in the marine green alga Bryopsis, the host plant's cell wall was mechanically, chemically and enzymatically cleaned. Merely a chemical and enzymatic approach proved to be highly effective. Bryopsis thalli treated with cetyltrimethylammonium bromide (CTAB) lysis buffer, proteinase K and bactericidal cleanser Umonium Master showed no bacterial growth on agar plates or bacterial fluorescence when stained with a DNA fluorochrome. Moreover, the algal cells were intact after sterilization, suggesting endophytic DNA is still present within these algae. This new surface sterilization procedure opens the way to explore endosymbiotic microbial communities of other, even difficult to handle, samples.

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