vestnik-bio-msuВестник Московского университета. Серия 16. БиологияVestnik Moskovskogo universiteta. Seriya 16. Biologiya0137-0952Lomonosov Moscow State University, School of Biologyvestnik-bio-msu-468Research ArticleГидробиологияHydrobiologyОБИЛИЕ И ВИДОВОЙ СОСТАВ ФОТОАВТОТРОФНЫХ ПИКОЭУКАРИОТ ОНЕЖСКОГО ЗАЛИВА БЕЛОГО МОРЯPHOTOTROPHIC PICOEUKARYOTES OF THE ONEGA BAY, THE WHITE SEA: ABUNDANCE AND SPEСIES COMPOSITIONБелевичТ. А.BelevichT. A.

Кафедра гидробиологии, биологический факультет

Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 12

канд. биол. наук, вед. науч. сотр. кафедры гидробиологии биологического факультета МГУ. Тел: 8-495-939-27-91

Department of Hydrobiology, School of Biology

Leninskiye gory 1–12, Moscow, 119234, Russia

belevich@mail.bio.msu.ruИльяшЛ. В.IlyashL. V.

Кафедра гидробиологии, биологический факультет

Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 12

докт. биол. наук, проф. кафедры гидробиологии биологического факультета МГУ. Тел: 8-495-939-27-91

Department of Hydrobiology, School of Biology

Leninskiye gory 1–12, Moscow, 119234, Russia

ilyashl@mail.ruМилютинаИ. А.MilyutinaI. A.

Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 40

канд. биол. наук, ст. науч. сотр. НИИ Физико-химической биологии имени А.Н. Белозерского. Тел: 8-495-939-31-93

Leninskiye gory 1–40, Moscow, 119234, Russia

iramilyutina@yandex.ruЛогачеваМ. Д.LogachevaM. D.

Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 40

канд. биол. наук, ст. науч. сотр. НИИ Физико-химической биологии имени А.Н. Белозерского. Тел: 8-495-939-31-93

Leninskiye gory 1–40, Moscow, 119234, Russia

maria.log@gmail.comТроицкийА. В.TroitskyA. V.

Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 40

докт. биол. наук, зав. отделом НИИ Физико-химической биологии имени А.Н. Белозерского. Тел: 8-495-939-31-93

Leninskiye gory 1–40, Moscow, 119234, Russia

bobr@belozersky.msu.ruМосковский государственный университет имени М.В. ЛомоносоваРоссияLomonosov Moscow State UniversityRussian FederationНИИ Физико-химической биологии имени А.Н. Белозерского Московский государственный университет имени М.В. ЛомоносоваРоссияA.N. Belozersky Institute of Physico-Chemical Biology Lomonosov Moscow State UniversityRussian Federation201728072017723128134Copyright © Белевич Т.А., Ильяш Л.В., Милютина И.А., Логачева М.Д., Троицкий А.В., 20172017Белевич Т.А., Ильяш Л.В., Милютина И.А., Логачева М.Д., Троицкий А.В.Belevich T.A., Ilyash L.V., Milyutina I.A., Logacheva M.D., Troitsky A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik-bio-msu.elpub.ru/jour/article/view/468

Численность, биомасса и состав фотоавтотрофных пикоэукариот (ФПЭ, размер клеток менее 3 мкм) оценены в Онежском заливе Белого моря в июне 2015 г. Наибольшие значения численности и биомассы ФПЭ были приурочены к слою 0–5 м, в котором средние значения этих показателей ФПЭ по акватории залива изменялись в пределах 0–36,8 ·104 кл/л и 0–117 мкг С/м3, соответственно. Метагеномное секвенирование области V4 гена 18S рРНК выявило присутствие таксонов ФПЭ, относящихся к восьми классам водорослей. По числу прочтений и операционных таксономических единиц преобладали Mamiellophyceae. До видового уровня идентифицированы зелёные водоросли Bathycoccus prasinos, Ostreococcus tauri и Micromonas pusila, а также диатомеи Skeletonema marinoi и Minidiscus trioculatus.

The abundance, biomass and species composition of phototrophic picoeukaryotes (PPE, cells size less than 3 μm) were studied in Onega Bay of the White Sea in June 2015. The highest PPE abundance and biomass were registered in the 0–5 m water layer. In the bay the average (in the 0–5 m water layer) abundance and biomass varied from 0 to 36,8 ·104 cell/l and from 0 to 117 μg С/m3, respectively. The Illumina sequencing of V4 region of 18S rRNA gene revealed eight classes of PPE. Mamiellophyceae dominated both in number of reads and operational taxonomic units. The green algae Bathycoccus prasinos, Ostreococcus tauri and Micromonas pusila, as well as diatoms Skeletonema marinoi and Minidiscus trioculatus were identified to species level.

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The authors declare that there are no conflicts of interest present.