title: Ostreopsis cf. ovata bloom in the northern Adriatic Sea during summer 2009: ecology, molecular characterization and toxin profile.
abstract: Intense blooms of the benthic dinoflagellate Ostreopsis cf. ovata have occurred in the northern Adriatic Sea since 2006. These blooms are associated with noxious effects on human health and with the mortality of benthic organisms because of the production of palytoxin-like compounds. The O. cf. ovata bloom and its relationships with nutrient concentrations at two stations on the Conero Riviera (northern Adriatic Sea) were investigated in the summer of 2009. O. cf. ovata developed from August to November, with the highest abundances in September (1.3×10(6) cells g(-1) fw corresponding to 63.8×10(3) cells cm(-2)). The presence of the single O. cf. ovata genotype was confirmed by a PCR assay. Bloom developed when the seawater temperature was decreasing. Nutrient concentrations did not seem to affect bloom dynamics. Toxin analysis performed by high resolution liquid chromatography-mass spectrometry revealed a high total toxin content (up to 75 pg cell(-1)), including putative palytoxin and all the ovatoxins known so far.
authors: Dipartimento di Scienze del Mare, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
authors: Stefano
authors: S
authors: Accoroni
authors: Tiziana
authors: T
authors: Romagnoli
authors: Federica
authors: F
authors: Colombo
authors: Chiara
authors: C
authors: Pennesi
authors: Cristina Gioia
authors: CG
authors: Di Camillo
authors: Mauro
authors: M
authors: Marini
authors: Cecilia
authors: C
authors: Battocchi
authors: Patrizia
authors: P
authors: Ciminiello
authors: Carmela
authors: C
authors: Dell'Aversano
authors: Emma
authors: E
authors: Dello Iacovo
authors: Ernesto
authors: E
authors: Fattorusso
authors: Luciana
authors: L
authors: Tartaglione
authors: Antonella
authors: A
authors: Penna
authors: Cecilia
authors: C
authors: Totti
mesh_terms: D000178:Acrylamides / Q000737:chemistry; D000704:Analysis of Variance; D002851:Chromatography, High Pressure Liquid; D003064:Cnidarian Venoms; D004141:Dinoflagellida / Q000737:chemistry* / Q000235:genetics* / Q000502:physiology; D057097:Harmful Algal Bloom; D008387:Marine Toxins / Q000032:analysis / Q000737:chemistry / Q000633:toxicity*; D013058:Mass Spectrometry; D008522:Mediterranean Sea; D008856:Microscopy, Fluorescence; D015394:Molecular Structure; D016133:Polymerase Chain Reaction; D011157:Population Dynamics; D012623:Seawater / Q000032:analysis*; D013696:Temperature; D044445:Ulva / Q000737:chemistry*; D000095702:Polyether Toxins
chemical_list: D000178:Acrylamides; D003064:Cnidarian Venoms; D008387:Marine Toxins; C010272:palytoxin; D000095702:Polyether Toxins