Pentaplacodinium lapazense sp. nov. from Central and Southern Gulf of California, a new non-toxic gonyaulacalean resembling Protoceratium reticulatum
| Type | Article | ||||||||||||
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| Date | 2023-01 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Mertens Kenneth 1, Morquecho Lourdes2, Carbonell-Moore Consuelo3, Meyvisch Pjotr4, Gu Haifeng5, Bilien Gwenael1, Duval Audrey1, Derrien Amelie1, Pospelova Vera6, Śliwińska Kasia K.7, Gárate-Lizárraga Ismael8, Pérez-Cruz Beatriz9 |
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| Affiliation(s) | 1 : Ifremer, LITTORAL, F-29900 Concarneau, France 2 : Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. IPN 195, Playa Palo de Santa Rita Sur, La Paz, Baja California Sur 23096, Mexico 3 : Oregon State University, Department of Botany and Plant Pathology, College of Agricultural Sciences, 2082 Cordley Hall, Corvallis, OR 97331-2902, USA 4 : Department of Geology, Ghent University, Krijgslaan 281, S8, 9000 Ghent, Belgium 5 : Department of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China 6 : Department of Earth and Environmental Sciences, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455, USA 7 : Department of Stratigraphy, Geological Survey of Denmark and Greenland, GEUS, Øster Voldgade 10, 1350 Copenhagen K, Denmark 8 : Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n, Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico 9 : Laboratorio Estatal de Salud Pública 'Dr. Galo Soberón y Parra', Boulevard Vicente Guerrero, Esq. Juan R. Escudero s/n, Ciudad Renacimiento, Acapulco, Guerrero, Mexico |
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| Source | Marine Micropaleontology (0377-8398) (Elsevier BV), 2023-01 , Vol. 178 , P. 102187 (22p.) | ||||||||||||
| DOI | 10.1016/j.marmicro.2022.102187 | ||||||||||||
| WOS© Times Cited | 1 | ||||||||||||
| Keyword(s) | Operculodinium, Yessotoxins, BahiaConcepcion, Bahia de La Paz, micro-FTIR spectroscopy | ||||||||||||
| Abstract | A new Pentaplacodinium species with six precingular plates is described from Bahía Concepción and Bahía de la Paz, Gulf of California. The non-fossil motile stage is described as Pentaplacodinium lapazense, whilst the fossil stage is described as Operculodinium lapazense. The cyst morphology is compared to topotype material of Operculodinium israelianum, which is larger, has longer processes and has a different wall structure. The motile cells display a plate formula of Po, Pt, X, 2′ + *2′, 6′′, 6c, 7 s, 5′′′, 1p, 1′′′′. A typical gonyaulacalean fission line and plate overlap are observed. SSU-ITS-LSU ribosomal DNA sequences demonstrate that Pentaplacodinium saltonense is its closest relative. The species is homothallic. This species occurs in relatively shallow and restricted coastal areas, and has a preference for higher sea-surface temperatures and salinities. MicroFTIR spectra of the cysts are compared to spectra of cysts of other gonyaulacaleans and suggest very similar compositions. No yessotoxins were detected in any of the analyzed strains, hence, this species is unlikely to be responsible for the elevated yessotoxin concentration observed in shellfish on the southern and central coastal region of the Gulf of California.
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