Open AccessDescription of new filamentous toxic Cyanobacteria ( Oscillatoriales ) colonizing the sulfidic periphyton mat in marine mangroves
Author(s) -
GuidiRontani Chantal,
Jean Maïtena R.N.,
GonzalezRizzo Silvina,
BolteKluge Susanne,
Gros Olivier
Publication year - 2014
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/1574-6968.12551
Subject(s) - mangrove , biology , periphyton , cyanobacteria , botany , marine fungi , genus , oscillatoria , ecology , lyngbya , algae , bacteria , paleontology
In this multidisciplinary study, we combined morphological, physiological, and phylogenetic approaches to identify three dominant water bloom‐forming Cyanobacteria in a tropical marine mangrove in Guadeloupe (French West Indies). Phylogenetic analysis based on 16S rRNA gene sequences place these marine Cyanobacteria in the genera Oscillatoria ( Oscillatoria sp. clone gwada, strain OG ) or Planktothricoides (‘ Candidatus Planktothricoides niger’ strain OB and ‘ Candidatus Planktothricoides rosea’ strain OP ; both provisionally novel species within the genus Planktothricoides). Bioassays showed that ‘ Candidatus Planktothricoides niger’ and ‘ Candidatus Planktothricoides rosea’ are toxin‐producing organisms. This is the first report of the characterization of Cyanobacteria colonizing periphyton mats of a tropical marine mangrove. We describe two novel benthic marine species and provide new insight into Oscillatoriaceae and their potential role in marine sulfide‐rich environments such as mangroves.