Influence of Zinc and Iron on Population Growth and Physiological State of Microalgae  Heterosigma akashiwo  (Raphidophyceae)

Zh. V. Markina; Маркина Ж. В.; A. V. Ognistaya; Огнистая А. В.

doi:10.31857/S0134347523040071

Influence of Zinc and Iron on Population Growth and Physiological State of Microalgae Heterosigma akashiwo (Raphidophyceae)

Authors: Markina Z.V.¹, Ognistaya A.V.¹
Affiliations:
1. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences
Issue: Vol 49, No 4 (2023)
Pages: 275-280
Section: КРАТКИЕ СООБЩЕНИЯ
Published: 01.07.2023
URL: https://journals.eco-vector.com/0134-3475/article/view/670249
DOI: https://doi.org/10.31857/S0134347523040071
EDN: https://elibrary.ru/UQLWXU
ID: 670249

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Abstract

It was studied the influence of zinc and iron at concentrations of 50 and 100 µg/L on cell number, chlorophyll a fluorescence, content of photosynthetic pigments and reactive oxygen species, as well as neutral lipids in the raphidophyte algae Heterosigma akashiwo. Zinc has been found to act on physiological and biochemical processes without affecting the population dynamics of microalgae. It was revealed the negative effect of iron on the fluorescence of chlorophyll a, number of photosynthetic pigments, reactive oxygen species and neutral lipids. The most toxic metal for H. akashiwo turned out to be iron. It was shown that the concentrations of the studied metals do not contribute to the development of H. akashiwo “blooms”.

Keywords

zinc, iron, Heterosigma akashiwo, cell cells, fluorescence, photosynthetic pigments, reactive oxygen species, neutral lipids

About the authors

Zh. V. Markina

Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences

Author for correspondence.
Email: zhannav@mail.ru
Russia, 690041, Vladivostok

A. V. Ognistaya

Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences

Email: zhannav@mail.ru
Russia, 690041, Vladivostok

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