CARD-FISH and prey tracer techniques reveal the role of overlooked flagellate groups as major bacterivores in freshwater hypertrophic shallow lakes.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00561632" target="_blank" >RIV/60077344:_____/22:00561632 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/22:43905634

Result on the web

<a href="https://doi.org/10.1111/1462-2920.15846" target="_blank" >https://doi.org/10.1111/1462-2920.15846</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1462-2920.15846" target="_blank" >10.1111/1462-2920.15846</a>

Result language

angličtina

Original language name

CARD-FISH and prey tracer techniques reveal the role of overlooked flagellate groups as major bacterivores in freshwater hypertrophic shallow lakes.

Original language description

Heterotrophic nanoflagellates (HNF) and ciliates are major protistan planktonic bacterivores. The term HNF, however, describes a functional guild only and, in contrast to the morphologically distinguishable ciliates, does not reflect the phylogenetic diversity of flagellates in aquatic ecosystems. Associating a function with taxonomic affiliation of key flagellate taxa is currently a major task in microbial ecology. We investigated seasonal changes in the HNF and ciliate community composition as well as taxa-specific bacterivory in four hypertrophic freshwater lakes. Taxa-specific catalyzed reporter deposition-fluorescence in situ hybridization probes assigned taxonomic affiliations to 51%-96% (average +/- SD, 75 +/- 14%) of total HNF. Ingestion rates of fluorescently labelled bacteria unveiled that HNF contributed to total protist-induced bacterial mortality rates more (56%) than ciliates (44%). Surprisingly, major HNF bacterivores were aplastidic cryptophytes and their Cry1 lineage, comprising on average 53% and 24% of total HNF abundance and 67% and 21% of total HNF bacterivory respectively. Kinetoplastea were important consumers of bacteria during summer phytoplankton blooms, reaching 38% of total HNF. Katablepharidacea (7.5% of total HNF) comprised mainly omnivores, with changing contributions of bacterivorous and algivorous phylotypes. Our results show that aplastidic cryptophytes, accompanied by small omnivorous ciliate genera Halteria/Pelagohalteria, are the major protistan bacterivores in hypertrophic freshwaters.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Microbiology

ISSN

1462-2912

e-ISSN

1462-2920

Volume of the periodical

24

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

18

Pages from-to

4256-4273

UT code for WoS article

000732322000001

EID of the result in the Scopus database

2-s2.0-85121489161