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Title: A water-soluble [60]fullerene-derivative stimulates chlorophyll accumulation and has no toxic effect on Chlamydomonas reinhardtii
Authors: Lang, Jakub
Melnykova, Mariia
Catania, Michele
Inglot, Alicja
Zyss, Aleksandra
Mikruta, Katarzyna
Firgolska, Daria
Wieremiejczuk, Agata
Książek, Izabela
Serda, Maciej
Nalepa, Paweł
Pluciński, Bartosz
Giza, Aleksandra
Jedynak, Paweł
Keywords: Chlamydomonas reinhardtii; Algae; [60]fullerene-derivative; Chlorophyll; Toxicity
Issue Date: 2019
Citation: Acta Biochimica Polonica, 2019, vol. 66, Epub: No 2835
Abstract: Chlamydomonas reinhardtii (WT 2137) P. A. Dang. (Volvocales, Chlorophyceae) is a green microalgae serving as a suitable model in scientific research and a promising industrial biotechnology platform for production of biofuel, hydrogen and recombinant proteins. Fullerenes (C60) are allotropic carbon nanoparticles discovered in 1985 and used in biomedical studies since the early 1990s, when water solubilization methodologies were developed. Recently, surface-modified hydroxylated derivatives of fullerenes were proven to enhance algal growth and drought tolerance in plants. Here, a novel type of water-soluble [60]fullerene derivative with 12 glycine residues (GF) has been synthesized and tested for acute toxicity (up to 50 μg/ml) and as a potential biostimulant of algal growth. The effects of GF on pigment composition and growth rate of Chlamydomonas reinhardtii were systematically investigated. Our results suggest that GF was not toxic, and no negative change in the pigment content and no stress symptoms were observed. No changes in the photosynthetic parameters based on the fluorescence of chlorophyll a in Photosystem II (NPQ, Fv/Fm, Fv/F0, PI and RC/ABS) were observed. The GF had no effect on cell size and growth rate. At a concentration of 20 μg/ml, GF stimulated chlorophyll accumulation in 3-day-old cultures.
DOI: 10.18388/abp.2019_2835
ISSN: 0001-527X
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