Abstract
The sexual reproduction and life history of the marine pennate diatom Entomoneis cf. paludosa have been described for the first time. The sexual process has been found to involve two gametangia, each producing two gametes. This species is characterized by morphological and behavioral isogamy. Its mating system includes the heterothallic mode of reproduction, with no cases of homothallic reproduction recorded. The type of sexual process is categorized as IC in Geitler’s system.
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Funding
The study was conducted in the framework of the State assignment to the Vyazemsky Karadag Scientific Station, Nature Reserve of Russian Academy of Sciences, Branch of Kovalevsky Institute of Biology of the Southern Seas, Russian Academy of Sciences, entitled A Study of Fundamental Physical, Physiological and Biochemical, Reproductive, Population, and Behavioral Characteristics of Marine Organisms (State registry no. AAAA-A19-119012490045-0). The sampling on the Turkish coast was supported by the TR-YÖK-Proje Tabanlı Değişim Programı exchange program (grant no. MEV-2016-46).
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Translated by E. Shvetsov
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Podunay, Y.A., Davidovich, N.A., Davidovich, O.I. et al. The Sexual Reproduction and Life Cycle of the Pennate Diatom Entomoneis cf. paludosa (W. Smith) Reimer (Bacillariophyta). Russ J Mar Biol 47, 19–28 (2021). https://doi.org/10.1134/S1063074021010089
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DOI: https://doi.org/10.1134/S1063074021010089