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The Plastisphere – Uncovering tightly attached plastic “specific” microorganisms

Open access
Kirstein, Inga Vanessa, Wichels, Antje, Gullans, Elisabeth, Krohne, Georg, Gerdts, Gunnar·2019·PLOS ONE

Abstract

In order to understand the degradation potential of plastics in the marine environment, microorganisms that preferentially colonize and interact with plastic surfaces, as opposed to generalists potentially colonising everything, need to be identified. Accordingly, it was hypothesized that i.) plastic "specific" microorganisms are closely attached to the polymeric surface and ii.) that specificity of plastics biofilms are rather related to members of the rare biosphere. To answer these hypotheses, a three phased experiment to stepwise uncover closely attached microbes was conducted. In Phase 1, nine chemically distinct plastic films and glass were incubated in situ for 21 months in a seawater flow through system. In Phase 2, a high-pressure water jet treatment technique was used to remove the upper biofilm layers to further, in Phase 3, enrich a plastic "specific" community. To proof whether microbes colonizing different plastics are distinct from each other and from other inert hard substrates, the bacterial communities of these different substrates were analysed using 16S rRNA gene tag sequencing. Our findings indicate that tightly attached microorganisms account to the rare biosphere and suggest the presence of plastic "specific" microorganisms/assemblages which could benefit from the given plastic properties or at least grow under limited carbon resources.

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Metadata

Authors
Kirstein, I. V., Wichels, A., Gullans, E., Krohne, G., & Gerdts, G.
Venue
PLOS ONE
Published
2019-04-23
Volume
14
Issue
4
Pages
e0215859
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2940489575
Cited by
276
References
10
FWCI
7.67
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: The Plastisphere – Uncovering tightly attached plastic “specific” microorganisms. https://app.cochat.ai/papers/10.1371/journal.pone.0215859
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Kirstein, I. V., Wichels, A., Gullans, E., Krohne, G., & Gerdts, G. (2019). The Plastisphere – Uncovering tightly attached plastic “specific” microorganisms. PLOS ONE. https://doi.org/10.1371/journal.pone.0215859

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