Plasmid-borne diazotrophy in basal filamentous cyanobacteria - a new adaptive freshwater niche?
Public support
Provider
Czech Science Foundation
Programme
Standard projects
Call for proposals
SGA0202600001
Main participants
Biologické centrum AV ČR, v. v. i.
Contest type
VS - Public tender
Contract ID
26-21397S
Alternative language
Project name in Czech
Plasmid-borne diazotrophy in basal filamentous cyanobacteria - a new adaptive freshwater niche?
Annotation in Czech
This project pioneers research on the ecological role of plasmid-encoded N₂ fixation in homocytous cyanobacteria. It focuses on the phylogenetically basal, earliest multicellular filamentous group of Pseudanabaenaceae. It explores how plasmid-borne diazotrophy expands the ecological niche of planktonic Pseudanabaena, investigating its environmental distribution, conditions and ecophysiological parameters inducing this type of N₂ fixation, and its contribution to N-limited freshwater ecosystems. It further investigates the evolutionary origins and potential horizontal transfer of this unique trait among cyanobacteria. A high-risk/high-gain objective is to establish a heterologous cyanobacterial model system in Synechocystis to study plasmid-mediated diazotrophy, providing a toolbox for future research. The project has the potential to improve our understanding of cyanobacterial N₂ fixation in a new ecological context, its distribution and impact in freshwater ecosystems.
Scientific branches
R&D category
ZV - Basic research
OECD FORD - main branch
10606 - Microbiology
OECD FORD - secondary branch
10608 - Biochemistry and molecular biology
OECD FORD - another secondary branch
10617 - Marine biology, freshwater biology, limnology
CEP - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
CE - Biochemistry<br>DA - Hydrology and limnology<br>EB - Genetics and molecular biology<br>EE - Microbiology, virology
Solution timeline
Realization period - beginning
Jan 1, 2026
Realization period - end
Dec 31, 2028
Project status
Z - Beginning multi-year project
Latest support payment
—
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP26-GA0-GA-R
Data delivery date
Jun 1, 2026
Finance
Total approved costs
12,466 thou. CZK
Public financial support
12,466 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
0 thou. CZK