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Дата внесения публикации в базу 04-04-2023 11:13 не попадает в период стимулирования 01-06-2023 – 31-05-2024
КБПР (данная функция работает в тестовом режиме) 0.12
Количество соавторов публикации - 2
Публикации в изданиях из списка ВАК, не входящие в другие пункты (WoS,Scopus,RSCI), K=0.12
Публикации в изданиях из списка ВАК, не входящие в другие пункты (WoS,Scopus,RSCI), K=0.12
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Неврова Е. Л.: количество аффилиаций - 1, вклад в КБПР публикации:
формула: K/(Nсоавторов*Nаффил) = 0.12/(2*1) = 0.06 -
Петров А. Н.: количество аффилиаций - 1, вклад в КБПР публикации:
формула: K/(Nсоавторов*Nаффил) = 0.12/(2*1) = 0.06
Статья в периодическом издании
Evaluation of the tolerance threshold of the marine benthic diatom Pleurosigma aestuarii (Bréb. In Kütz.) W. Smith, 1853 (Bacillariophyta) under the impact of copper (ii) ions
РИНЦ 0.692
| DOI | https://doi.org/10.47921/2619-1024_2023_6_1_73 |
|---|---|
| Язык | Русский |
| Журнал | Водные биоресурсы и среда обитания ISSN: 2618-8147; Онлайн ISSN: 2619-1024 |
| Год | 2023 |
| Выходные данные | Том: 6, Номер: 1, Страницы: 73-81 |
| Авторы | |
| Даты |
Поступила в редакцию: 20.09.2022 Принята к публикации: 19.12.2022 |
| Абстракт | Copper compounds accumulate in marine bottom sediments as the result of human activity and, being highly toxic, affect microphytobenthos. Evaluation of the tolerance ranges of benthic diatoms to copper pollution is important for biotesting and assessment of coastal marine environment. This work is aimed to reveal the dynamics of growth and cell death of marine benthic diatom Pleurosigma aestuarii (Bréb. in Kütz.) W. Smith, 1853 under the impact of a wide range of copper (II) ions concentrations over the course of a 10-day experiment in clonal culture, as well as to identify a tolerance threshold for this species, critical for its survival when exposed to the toxicant. The study has focused on assessment of the changes in the proportion (%) of alive cells, absolute cell number and specific growth rate of the culture at different exposure durations and concentrations of Cu2+ ions (32-1024 μg/L) and was meant to evaluate the applicability of this species as a new test object for ecotoxicology. In the control culture and in the cultures exposed to Cu2+ in the range of concentrations 32-256 μg/L, the proportion of alive cells did not change over the course of the experiment (95-99 %). At Cu2+ concentration 320 μg/L, the proportion of alive cells decreased to 23 % on the 3rd day and to 10 % on the 5th day, which provided a basis to consider this value as a threshold one for P. aestuarii survival. At Cu2+ concentrations 384 μg/L and higher, up to the maximum one (1024 μg/L), drastic inhibition of the culture was recorded as early as on the 1st day, and on the days 3-5, all the cells died. The increase in the absolute cell number in the concentration range 32- 256 μg/L were consistent with the dose-response sigmoid model. Over the timespan of days 1-7, the cell number increased by 3-5 times, reaching its maximum, and then it decreased by 10-12 % by the 10th day. At Cu2+ concentrations 320 μg/L and higher, the increase in the cell number was strongly suppressed since the 1st day. Within the 32-256 μg/L range, the test culture is characterized by positive specific cell growth rate for the period up to 7 days; at the threshold concentration 320 µg/L and higher, this test parameter becomes negative. Thus, P. aestuarii should be recommended as a new appropriate test object both for toxicological experiments and for monitoring of coastal marine environment affected by technogenic pollution. Ключевые слова: toxicology, biotesting, clonal culture, diatoms, monitoring, pollution, Black Sea |
| Сведения о финансировании, указанные в публикации | This study was carried out as a part of the State Assignment No. 121030100028-0 of the A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS (Benthos Ecology Dept.). |
| URL | https://www.elibrary.ru/item.asp?id=50399883 |
| Дополнительные сведения |
...Ultrastructure of valves was examined using Hitachi SU3500 scanning electron microscope (SEM)... (стр. 75) |
Запись создана: 04-04-2023 11:13
Последнее изменение: 04-04-2023 11:16
Библиографическая ссылка:
Nevrova E. L., Petrov A. N. Evaluation of the tolerance threshold of the marine benthic diatom Pleurosigma aestuarii (Bréb. In Kütz.) W. Smith, 1853 (Bacillariophyta) under the impact of copper (ii) ions // Водные биоресурсы и среда обитания. 2023. Т. 6, № 1. С. 73-81. https://doi.org/10.47921/2619-1024_2023_6_1_73
[РИНЦ 0.692]
Nevrova E. L., Petrov A. N. Evaluation of the tolerance threshold of the marine benthic diatom Pleurosigma aestuarii (Bréb. In Kütz.) W. Smith, 1853 (Bacillariophyta) under the impact of copper (ii) ions // Водные биоресурсы и среда обитания. 2023. Т. 6, № 1. С. 73-81. https://doi.org/10.47921/2619-1024_2023_6_1_73
[РИНЦ 0.692]
Экспертное заключение: № 209, 2022
Индексация на момент включения в базу:
Web of Science
Web of Science
- Статус
- Нет
- Статус
- Нет
В публикации указано госзадание:
№ 121030100028-0 «Закономерности формирования и антропогенная трансформация биоразнообразия и биоресурсов Азово-Черноморского бассейна и других районов Мирового океана» (предыдущий номер АААА-А18-118020890074-2)
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