title: Antifouling activities against colonizer marine bacteria of extracts from marine invertebrates collected in the Colombian Caribbean Sea and on the Brazilian coast (Santa Catarina).
abstract: The growth inhibition of 12 native marine bacteria isolated from Aplysina sponge surfaces, the shell of a bivalve, and Phytagel immersed for 48 h in sea water were used as indicator of the antifouling activity of the extracts of 39 marine organisms (octocorals, sponges, algae, and zoanthid) collected in the Colombian Caribbean Sea and on the Brazilian coast (Santa Catarina). Gram-negative bacteria represented 75% of the isolates; identified strains belonged to Oceanobacillus iheyensis, Ochrobactrum pseudogrignonense, Vibrio campbellii, Vibrio harveyi, and Bacillus megaterium species and seven strains were classified at genus level by the 16S rRNA sequencing method. The extracts of the octocorals Pseudopterogorgia elisabethae, four Eunicea octocorals, and the sponges Topsentia ophiraphidites, Agelas citrina, Neopetrosia carbonaria, Monanchora arbuscula, Cliona tenuis, Iotrochota imminuta, and Ptilocaulis walpersii were the most active, thus suggesting those species as antifoulant producers. This is the first study of natural antifoulants from marine organisms collected on the Colombian and Brazilian coasts.
authors.affiliation: Departamento de Biología, Universidad Nacional de Colombia, Bogotá, Colombia.
authors.forename: Jennyfer A
authors.initials: JA
authors.lastname: Mora-Cristancho
authors.forename: Catalina
authors.initials: C
authors.lastname: Arévalo-Ferro
authors.forename: Freddy A
authors.initials: FA
authors.lastname: Ramos
authors.forename: Edisson
authors.initials: E
authors.lastname: Tello
authors.forename: Carmenza
authors.initials: C
authors.lastname: Duque
authors.forename: Cintia
authors.initials: C
authors.lastname: Lhullier
authors.forename: Miriam
authors.initials: M
authors.lastname: Falkenberg
authors.forename: Eloir Paulo
authors.initials: EP
authors.lastname: Schenkel
mesh_terms: D000818:Animals; D018407:Bacterial Physiological Phenomena; D001938:Brazil; D003105:Colombia; D007448:Invertebrates / Q000502:physiology*; D008386:Marine Biology; D013045:Species Specificity; D014900:West Indies