Bacterial prey food characteristics modulate community growth response of freshwater bacterivorous flagellates
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897430" target="_blank" >RIV/60076658:12310/18:43897430 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/18:00495062
Result on the web
<a href="https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.10759" target="_blank" >https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.10759</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/lno.10759" target="_blank" >10.1002/lno.10759</a>
Alternative languages
Result language
angličtina
Original language name
Bacterial prey food characteristics modulate community growth response of freshwater bacterivorous flagellates
Original language description
Different bacterioplankton species represent different food quality resources for heterotrophic nanoflagellate (HNF) communities, potentially affecting HNF growth, community dynamics and carbon flow to higher trophic levels. However, our knowledge of such dynamics is still very limited. Here, we describe the results of 11 experiments with natural HNF communities from distinct seasonal phases in two freshwater habitats. The HNF communities were released from predation pressure of zooplankton and incubated with 16 distinct ecologically relevant prey bacterial strains from important Betaproteobacteria genera (Limnohabitans, Polynucleobacter, and Methylopumilus) and one Actinobacteria strain from the Luna 2 cluster. We observed remarkable prey- and season-specific variability in community HNF growth parameters, i.e., doubling time, volumetric gross growth efficiency (GGE), and length of lag phase. All strains, except for the actinobacterium, supported rapid HNF population growth with an average doubling time of 10 h and GGE of 29%. Our analysis revealed that 59% of the variability in flagellate GGE data was explained by the length of lag phase after prey amendments. This indicates a considerable "adaptation time," during which the predator communities undergo compositional shifts toward flagellate bacterivores best adapted to grow on the offered prey. Importantly, the rapid HNF growth detected on various bacteria tightly corresponds to doubling times reported for fast growing bacterioplankton groups. We propose a conceptual model explaining the tight linkages between rapid bacterial community shifts and succeeding HNF community shifts, which optimize prey utilization rates and carbon flow from various bacteria to the microbial food chain.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
<a href="/en/project/GA13-00243S" target="_blank" >GA13-00243S: Unveiling life strategies of selected groups of planktonic Betaproteobacteria in relationship to carbon flow to higher trophic levels</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Limnology and Oceanography
ISSN
0024-3590
e-ISSN
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Volume of the periodical
63
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
484-502
UT code for WoS article
000423029300031
EID of the result in the Scopus database
2-s2.0-85040819065