NDLI: Antimicrobial activity of selected benthic Arctic invertebrates

Content Provider	Springer Nature Link
Author	Angulo Preckler, C. Spurkland, T. Avila, C. Iken, K.
Copyright Year	2015
Abstract	Benthic marine invertebrates are naturally exposed to a broad array of potentially deleterious microorganisms, and they can exhibit either a broad spectrum or a selective activity against specific bacteria. It is well known that chemical defenses produced by invertebrates are efficient in preventing microbial colonization or infections; however, little is known about such defenses in Arctic invertebrates. To investigate the incidence of chemical defenses against bacteria in sessile or slow-moving marine invertebrates from the Arctic Beaufort Sea, organic extracts of 16 species (10 sponges, three soft corals, two bryozoans, and one holothurian) were tested for antimicrobial activity against six allopatric bacterial strains. Notably, most lipophilic fractions showed different degrees of activity, while none of the hydrophilic extracts of any of the invertebrate species tested in the study presented any antimicrobial activity. Ten out of 16 invertebrate species tested (62.5 %) inhibited growth of at least one bacterial strain at natural extract concentration. This indicates that antimicrobial defenses are a common trend among sessile or slow-moving marine benthic invertebrates from the Arctic.
Starting Page	1941
Ending Page	1948
Page Count	8
File Format	PDF
ISSN	07224060
Journal	Polar Biology
Volume Number	38
Issue Number	11
e-ISSN	14322056
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-07-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microbial inhibition Arctic benthic invertebrates Bacteria Chemical defenses Chemical ecology Ecology Oceanography Microbiology Plant Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Agricultural and Biological Sciences

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