Dolichospermum and Aphanizomenon as neurotoxins producers in some Russian freshwaters

Ekaterina Chernova , Sergey Sidelev , Iana Russkikh , Ekaterina Voyakina , Olga Babanazarova , Roman Romanov , Anton Kotovshchikov , Hanna Mazur-Marzec


Last decades, cyanobacterial blooms have been commonly reported in Russia. Among the boom-forming species, potential toxin producers have been identified. The aim of this paper was to study the presence of neurotoxic compounds - saxitoxins and anatoxin-a - in water bodies from different regions of Russia. We also made attempts to identify the neurotoxin-producing genera. The good convergence of the results obtained by light microscopy, PCR and LC-MS/MS analyses indicated the presence of active neurotoxin producing species in all investigated water bodies. Saxitoxin was detected in phytoplankton from 4 water bodies in Central European Russia and West Siberia, including lake and reservoirs used as a source for potable water. The water bodies differed with the respect of saxitoxin producers which belonged to Aphanizomenon and/or Dolichospermum genera. For the first time, we obtained quantitative data on the intracellular saxitoxin concentration in Russian freshwaters using LC-MS/MS. Anatoxin-a was detected only in lakes of Northwestern Russia. In the eutrophic shallow Lower Suzdal Lake, Aphanizomenon was the stated anatoxin-a-producing genus. In the large shallow artificial hypertrophic Sestroretskij Razliv Lake, it was very likely that both dominant species - Aphanizomenon flos-aquae and Dolichospermum planctonicum - were anatoxin-a producers.
Author Ekaterina Chernova
Ekaterina Chernova,,
, Sergey Sidelev
Sergey Sidelev,,
, Iana Russkikh
Iana Russkikh,,
, Ekaterina Voyakina
Ekaterina Voyakina,,
, Olga Babanazarova
Olga Babanazarova,,
, Roman Romanov
Roman Romanov,,
, Anton Kotovshchikov
Anton Kotovshchikov,,
, Hanna Mazur-Marzec (FOG / IO / DMarB)
Hanna Mazur-Marzec,,
- Division of Marine Biotechnology
Other language title versions
Journal seriesToxicon, ISSN 0041-0101, (A 30 pkt)
Issue year2017
Publication size in sheets0.5
Keywords in Englishcyanotoxins, LC-MS, PCR, neurotoxin producers, Aphanizomenon, Dolichospermum
ASJC Classification3005 Toxicology
Languageen angielski
Score (nominal)30
Score sourcejournalList
ScoreMinisterial score = 30.0, 21-02-2020, ArticleFromJournal
Publication indicators WoS Citations = 5; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.9; WoS Impact Factor: 2017 = 2.352 (2) - 2017=2.611 (5)
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