The identity of Centrodinium elongatum, type species of the dinoflagellate genus Centrodinium (Dinophyceae), and a review on the synonymy of allied species
Por:
Gómez, F, Navarrete-Carlos, TC, López-Osorio, YE, Zhang, H, Raymond, E, Salas, R, Alonso-Rodríguez, R, Lin, SJ
Publicada:
1 nov 2024
Ahead of Print:
1 oct 2024
Categoría:
Microbiology
Resumen:
The planktonic dinoflagellate genus Centrodinium has been understudied, with the type species C. elongatum remaining undocumented since the original description. Here, we report C. elongatum isolated from Mazatl & aacute;n, Mexican Pacific. In the chains, the posterior daughter cell with an incomplete apical horn shows the morphology of C. elongatum, while the anterior daughter cell with complete epitheca corresponds to C. pulchrum. For the first time, a species of Centrodinium sensu stricto (highly laterally flattened species with horns) was cultured. An unarmored life stage, known as Murrayella ovalis, derived from the spheroplast after ecdysis. In the rDNA molecular phylogenies, C. elongatum (=C. pulchrum) nested as basal to morphologically similar species (C. eminens and C. intermedium) and as a sister group of a former Murrayella species, C. punctatum. C. elongatum differs from C. eminens and C. intermedium in the chain formation, second apical (2 ') plate not being divided, horns with coarse poroid ornamentation, and missing prominent distal spinules. The taxonomy of Centrodinium sensu stricto is revised, with a discussion in the identities of C. complanatum, C. eminens, and C. maximum. The name C. deflexum is restored as a senior synonym of C. intermedium and C. ovale.
Filiaciones:
Gómez, F:
Carmen Campos Panisse 3, E-11500 El Puerto De Santa Maria, Spain
Navarrete-Carlos, TC:
Univ Nacl Autonoma Mexico, Unidad Academ Mazatlan, Inst Ciencias Mar & Limnol, Mazatlan, Sinaloa, Mexico
López-Osorio, YE:
Univ Nacl Autonoma Mexico, Unidad Academ Mazatlan, Inst Ciencias Mar & Limnol, Mazatlan, Sinaloa, Mexico
Zhang, H:
Univ Connecticut, Dept Marine Sci, Groton, CT USA
Raymond, E:
Marine Inst, Oranmore, Galway, Ireland
Salas, R:
Parque Cientif Tecnol Marino Taliarte, Inst Oceanog & Cambio Global IOCAG, Las Palmas Gran Canaria, Spain
Alonso-Rodríguez, R:
Univ Nacl Autonoma Mexico, Unidad Academ Mazatlan, Inst Ciencias Mar & Limnol, Mazatlan, Sinaloa, Mexico
Lin, SJ:
Univ Connecticut, Dept Marine Sci, Groton, CT USA
|