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Grant support

We are thankful to L. Nunez-Pones, J. Moles, S. Taboada, J. Cristobo, A. Riesgo and M. Bas for their laboratory support. We are very grateful to Dr A. Cuni and Dr. K. Tilbrook, who kindly reviewed the manuscript for English grammar. In this work we used the extracts from previous projects (ECOQUIM projects), for this reason we want to thank W. Arntz, and the R/V Polarstern and the BIO-Hesperides crews. We would like to thank as well the Unidad de Tecnologia Marina (UTM) and the crew of Las Palmas vessel for all their logistic support. Special thanks are also given to the "Gabriel de Castilla BAE" crew for their help. This research was developed in the frame of the ACTIQUIM I and II projects (CGL2007-65453/ANT, CTM2010-17415/ANT) with the financial support of the Spanish Government. L. Sala-Comorera and C. Angulo are recipients of FPU and FPI grants from the Spanish Government, respectively (FPU12/00614, BES-2010-035521).

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Vazquez, JenniferAuthor

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July 11, 2025
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Antimicrobial activity of Antarctic bryozoans: An ecological perspective with potential for clinical applications

Publicated to:Marine Environmental Research. 101 52-59 - 2014-10-01 101(), DOI: 10.1016/j.marenvres.2014.09.001

Authors: Figuerola, Blanca; Sala-Comorera, Laura; Angulo-Preckler, Carlos; Vazquez, Jennifer; Montes, M Jesus; Garcia-Aljaro, Cristina; Mercade, Elena; Blanch, Anicet R; Avila, Conxita

Affiliations

Univ Barcelona, Fac Biol, Biodivers Res Inst IrBIO, Barcelona, Catalunya, Spain - Author
Univ Barcelona, Fac Biol, Dept Anim Biol Invertebrates, Barcelona, Catalunya, Spain - Author
Univ Barcelona, Fac Biol, Dept Microbiol, Barcelona, Catalunya, Spain - Author
Univ Barcelona, Fac Pharm, Dept Hlth Microbiol & Parasitol, Barcelona, Catalunya, Spain - Author

Abstract

The antimicrobial activity of Antarctic bryozoans and the ecological functions of the chemical compounds involved remain largely unknown. To determine the significant ecological and applied antimicrobial effects, 16 ether and 16 butanol extracts obtained from 13 different bryozoan species were tested against six Antarctic (including Psychrobacter luti, Shewanella livingstonensis and 4 new isolated strains) and two bacterial strains from culture collections (Escherichia coli and Bacillus cereus). Results from the bioassays reveal that all ether extracts exhibited antimicrobial activity against some bacteria. Only one butanol extract produced inhibition, indicating that antimicrobial compounds are mainly lipophilic. Ether extracts of the genus Camptoplites inhibited the majority of bacterial strains, thus indicating a broad-spectrum of antimicrobial activity. Moreover, most ether extracts presented activities against bacterial strains from culture collections, suggesting the potential use of these extracts as antimicrobial drugs against pathogenic bacteria. (C) 2014 Elsevier Ltd. All rights reserved.

Keywords

AnimalsAntarctic regionsAnti-infective agentsAntifoulingBacteriBryozoaBugula-neritinaChemical defencesChemical defensesChemical ecologyComplex mixturesFlustra-foliaceaMarine benthoMarine benthosMarine natural-productsMembranipora-membranaceaMicrobial sensitivity testsPolar biologyRed-seaSoft coralsSouth shetland islandsSp-nov

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Marine Environmental Research due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2014, it was in position 12/103, thus managing to position itself as a Q1 (Primer Cuartil), in the category Marine & Freshwater Biology.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.92, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-17, the following number of citations:

  • WoS: 21
  • Europe PMC: 6

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-17:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 65.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 70 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network Facebook: 2 (Altmetric).
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).