Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons
14 pages, 9 figures, 2 tables, supplementary materials https://doi.org/10.1016/j.hal.2020.101855
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Elsevier
2020-07
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| Subjects: | Kryptoperidinium, Blooms, LSU, ITS, SSU, Endosymbiont, |
| Online Access: | http://hdl.handle.net/10261/216784 http://dx.doi.org/10.13039/501100005642 http://dx.doi.org/10.13039/501100009873 http://dx.doi.org/10.13039/501100011033 |
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dig-icm-es-10261-2167842021-05-21T09:22:32Z Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons Satta, Cecilia Teodora Pulina, Silvia Reñé, Albert Padedda, Bachisio Caddeo, T. Fois, N. Lugliè, Antonella Regione Autonoma della Sardegna Università degli Studi di Sassari Agencia Estatal de Investigación (España) Kryptoperidinium Blooms LSU ITS SSU Endosymbiont 14 pages, 9 figures, 2 tables, supplementary materials https://doi.org/10.1016/j.hal.2020.101855 In this study, the field ecology of Kryptoperidinium sp. was examined in two Mediterranean shallow lagoons, Calich (CA) and Santa Giusta (SG) in Sardinia, Italy. Kryptoperidinium cell density and the environmental conditions were examined monthly from 2008 to 2015 in CA and from 2011 to 2016 in SG. Cell morphology was determined by observing specimens taken from the field and from cultures that were established by single-cell isolation from samples collected in the two lagoons. The molecular identity of strains from each lagoon was also ascertained. The growth rates of the strains were determined under three different temperature conditions and six salinity treatments. The two wild populations shared the same morphology and the cultured strains were morphologically and molecularly identical. The SSU and 5.8S phylogenies show the presence of two clusters within the available Kryptoperidinium sequences and the strains obtained in this study clustered with others from the Mediterranean and Baltic. The multiannual dynamics of Kryptoperidinium sp. in the field significantly differed in the two lagoons, showing much higher cell densities in CA than in SG. The presence of Kryptoperidinium sp. was detected throughout the year in CA, with recurrent blooms also affecting the adjacent coastal area. In contrast, Kryptoperidinium sp. was sporadically observed in SG. The variation in the environmental parameters was fairly wide during the presence and blooms of Kryptoperidinium sp., especially in CA. The application of Generalized Linear Models to the field data revealed a significant role of rainfall and dissolved inorganic nitrogen on the presence and blooms of the species. Although growth rates were similar between the two strains, significant differences were detected for the 10 and 40 salinity treatments. The results obtained in this study add to our knowledge about the ecology of a harmful species that is not well understood in transitional ecosystems such as Mediterranean lagoons CTS was funded by a grant of Sardinian Region within the project “Santa Giusta – Indagine nello Stagno di Santa Giusta inerente la parte trofica e di identificazione delle criticità che possono portare alle crisi distrofiche” (DGR n° 42/34 del 16/ 10/2013). The activities of Prof. Antonella Lugliè were supported by the research fund of the University of Sassari (Fondo di Ateneo per la Ricerca 2019). With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI) 2020-07-17T08:10:23Z 2020-07-17T08:10:23Z 2020-07 2020-07-17T08:10:23Z artículo http://purl.org/coar/resource_type/c_6501 issn: 1568-9883 Harmful Algae 97: 101855 (2020) CEX2019-000928-S http://hdl.handle.net/10261/216784 10.1016/j.hal.2020.101855 http://dx.doi.org/10.13039/501100005642 http://dx.doi.org/10.13039/501100009873 http://dx.doi.org/10.13039/501100011033 Preprint https://doi.org/10.1016/j.hal.2020.101855 Sí open Elsevier |
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Kryptoperidinium Blooms LSU ITS SSU Endosymbiont Kryptoperidinium Blooms LSU ITS SSU Endosymbiont |
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Kryptoperidinium Blooms LSU ITS SSU Endosymbiont Kryptoperidinium Blooms LSU ITS SSU Endosymbiont Satta, Cecilia Teodora Pulina, Silvia Reñé, Albert Padedda, Bachisio Caddeo, T. Fois, N. Lugliè, Antonella Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons |
| description |
14 pages, 9 figures, 2 tables, supplementary materials https://doi.org/10.1016/j.hal.2020.101855 |
| author2 |
Regione Autonoma della Sardegna |
| author_facet |
Regione Autonoma della Sardegna Satta, Cecilia Teodora Pulina, Silvia Reñé, Albert Padedda, Bachisio Caddeo, T. Fois, N. Lugliè, Antonella |
| format |
artículo |
| topic_facet |
Kryptoperidinium Blooms LSU ITS SSU Endosymbiont |
| author |
Satta, Cecilia Teodora Pulina, Silvia Reñé, Albert Padedda, Bachisio Caddeo, T. Fois, N. Lugliè, Antonella |
| author_sort |
Satta, Cecilia Teodora |
| title |
Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons |
| title_short |
Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons |
| title_full |
Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons |
| title_fullStr |
Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons |
| title_full_unstemmed |
Ecological, morphological and molecular characterization of Kryptoperidinium sp. (Dinophyceae) from two Mediterranean coastal shallow lagoons |
| title_sort |
ecological, morphological and molecular characterization of kryptoperidinium sp. (dinophyceae) from two mediterranean coastal shallow lagoons |
| publisher |
Elsevier |
| publishDate |
2020-07 |
| url |
http://hdl.handle.net/10261/216784 http://dx.doi.org/10.13039/501100005642 http://dx.doi.org/10.13039/501100009873 http://dx.doi.org/10.13039/501100011033 |
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