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Naslov:Ecological time series and integrative taxonomy unveil seasonality and diversity of the toxic diatom Pseudo-nitzschia H. Peragallo in the northern Adriatic Sea
Avtorji:ID Turk Dermastia, Timotej (Avtor)
ID Cerino, Federica (Avtor)
ID Stanković, David (Avtor)
ID Francé, Janja (Avtor)
ID Ramšak, Andreja (Avtor)
ID Tušek-Žnidarič, Magda (Avtor)
ID Beran, Alfred (Avtor)
ID Natali, Vanessa (Avtor)
ID Cabrini, Marina (Avtor)
ID Mozetič, Patricija (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S1568988320300536
 
.pdf PDF - Predstavitvena datoteka, prenos (6,60 MB)
MD5: 779357ADDF115E92933AF7F4B6C2D56C
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo NIB - Nacionalni inštitut za biologijo
Povzetek:Pseudo-nitzschia H. Peragallo (1900) is a globally distributed genus of pennate diatoms that are important components of phytoplankton communities worldwide. Some members of the genus produce the neurotoxin domoic acid, so regular monitoring is in place. However, the identification of toxic members in routine samplings remains problematic. In this study, the diversity and seasonal occurrence of Pseudo-nitzschia species were investigated in the Gulf of Trieste, a shallow gulf in the northern Adriatic Sea. We used time series data from 2005 to 2018 to describe the seasonal and inter-annual occurrence of the genus in the area and its contribution to the phytoplankton community. On average, the genus accounted for about 15 % of total diatom abundance and peaked in spring and autumn, with occasional outbreaks during summer and large inter-annual fluctuations. Increased water temperature and decreased salinity positively affected the presence of some members of the genus, while strong effects could be masked by an unsuitable definition of the species complexes used for monitoring purposes. Therefore, combining morphological (TEM) and molecular analyses by sequencing the ITS, 28S and rbcL markers, eight species were identified from 83 isolated monoclonal strains: P. calliantha, P. fraudulenta, P. delicatissima, P. galaxiae, P. mannii, P. multistriata, P. pungens and P. subfraudulenta. A genetic comparison between the isolated strains and other strains in the Mediterranean was carried out and rbcL was inspected as a potential barcode marker in respect to our results. This is the first study in the Gulf of Trieste on Pseudo-nitzschia time series from a long-term ecological research (LTER) site coupled with molecular data. We show that meaningful ecological conclusions can be drawn by applying integrative methodology, as opposed to the approach that only considers species complexes. The results of this work will provide guidance for further monitoring efforts as well as research activities, including population genetics and genomics, associated with seasonal distribution and toxicity profiles.
Ključne besede:Pseudo-nitzschia, morphology, phylogeny, seasonality, time series, Adriatic Sea
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Založnik:Elsevier
Leto izida:2020
Št. strani:str. 1-20
Številčenje:Vol. 93, 101773
PID:20.500.12556/DiRROS-11205 Novo okno
UDK:574
ISSN pri članku:1568-9883
DOI:10.1016/j.hal.2020.101773 Novo okno
COBISS.SI-ID:40469253 Novo okno
Datum objave v DiRROS:18.03.2020
Število ogledov:2950
Število prenosov:898
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Harmful algae
Založnik:Elsevier
ISSN:1568-9883
COBISS.SI-ID:512209945 Novo okno

Gradivo je financirano iz projekta

Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:P1-0237
Naslov:Raziskave obalnega morja

Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Naslov:young researchers' grant

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Friuli Venezia Giulia Region
Številka projekta:15/2005

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:18.03.2020

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Jezik:Ni določen
Ključne besede:ekologija, morfologija, filogenija, Jadransko morje


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