Morphology and reproductive stages of Peridiniopsis borgei (Dinophyceae: Peridiniopsidaceae), first record in Mexico
Abstract
Peridiniopsis borgei is a species of the Peridiniopsidaceae family (dinophytes), commonly found in inland waters but previously unrecorded in Mexico. This study presents the first record of a P. borgei bloom in Lake La Preciosa, a subsaline, alkaline crater lake in Puebla State, Mexico. Its proliferation correlates with specific environmental conditions, including low salinity (~ 1.2 PSU) and total dissolved solids (~ 1.7-1.8 g L-1), high levels of dissolved oxygen in the epilimnion (≥ 6.0 mg L- ), and low concentrations of nutrients and iron. From a morphological perspective, the analyzed specimens exhibited well-defined diagnostic features, particularly in the apical region, thereby reinforcing their taxonomic identification. Microscopic observations revealed cell shapes associated with reproductive stages, including elongated and peanut-shaped forms, the biological significance of which remains unclear within Peridiniopsidaceae. No sexual processes were observed, suggesting that the observed stages could be part of post-germinative development. These findings suggest that P. borgei exhibits a dynamic life cycle with overlapping generations and responds to specific environmental conditions that could limit or control its distribution in ecosystems such as Lake La Preciosa. Such conditions position it as a model case for studying dinophytes in subsaline lakes within volcanic environments.
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BibTeX
@article{lira2026morphology,
title = {{Morphology and reproductive stages of Peridiniopsis borgei (Dinophyceae: Peridiniopsidaceae), first record in Mexico}},
author = {Beatriz Lira and Carolina Bustamante-Gil and Alejandra Mireles-Vázquez and Vladimir Betancourt and Karim Benzerara and Purificación López-García and Christophe Thomazo and Robin Havas and Jeanne Caumatrin and Didier Jézéquel and Rosaluz Tavera},
journal = {Revista Mexicana de Biodiversidad},
year = {2026},
month = aug,
doi = {10.22201/ib.20078706e.2026.97.5775},
url = {https://ube.hal.science/hal-05755090v1},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Morphology and reproductive stages of Peridiniopsis borgei (Dinophyceae: Peridiniopsidaceae), first record in Mexico
AU - Beatriz Lira
AU - Carolina Bustamante-Gil
AU - Alejandra Mireles-Vázquez
AU - Vladimir Betancourt
AU - Karim Benzerara
AU - Purificación López-García
AU - Christophe Thomazo
AU - Robin Havas
AU - Jeanne Caumatrin
AU - Didier Jézéquel
AU - Rosaluz Tavera
PY - 2026
DA - 2026/08/19
JO - Revista Mexicana de Biodiversidad
DO - 10.22201/ib.20078706e.2026.97.5775
UR - https://ube.hal.science/hal-05755090v1
AB - Peridiniopsis borgei is a species of the Peridiniopsidaceae family (dinophytes), commonly found in inland waters but previously unrecorded in Mexico. This study presents the first record of a P. borgei bloom in Lake La Preciosa, a subsaline, alkaline crater lake in Puebla State, Mexico. Its proliferation correlates with specific environmental conditions, including low salinity (~ 1.2 PSU) and total dissolved solids (~ 1.7-1.8 g L-1), high levels of dissolved oxygen in the epilimnion (≥ 6.0 mg L- ), and low concentrations of nutrients and iron. From a morphological perspective, the analyzed specimens exhibited well-defined diagnostic features, particularly in the apical region, thereby reinforcing their taxonomic identification. Microscopic observations revealed cell shapes associated with reproductive stages, including elongated and peanut-shaped forms, the biological significance of which remains unclear within Peridiniopsidaceae. No sexual processes were observed, suggesting that the observed stages could be part of post-germinative development. These findings suggest that P. borgei exhibits a dynamic life cycle with overlapping generations and responds to specific environmental conditions that could limit or control its distribution in ecosystems such as Lake La Preciosa. Such conditions position it as a model case for studying dinophytes in subsaline lakes within volcanic environments.
ER -