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Complex phyllosphere microbiome aids in the establishment of the invasive macrophyte Hydrilla verticillata (L.) under conditions of nitrogen scarcity

Jiří Bárta, Caio Cesar Pires de Paula, View ORCID ProfileEliška Rejmánková, Qiang Lin, Iva Kohoutová, View ORCID ProfileDagmara Sirová
doi: https://doi.org/10.1101/2021.01.11.426196
Jiří Bárta
1Biology Centre CAS, Institute of Hydrobiology, Na Sádkách 7, CZ-37005, České Budějovice, Czech Republic; , tel. 387775872, fax. 385310248
2Faculty of Science, University of South Bohemia, Branišovská 1760, CZ-37005 České Budějovice, Czech Republic
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  • For correspondence: dagmara_sirova@hotmail.com
Caio Cesar Pires de Paula
1Biology Centre CAS, Institute of Hydrobiology, Na Sádkách 7, CZ-37005, České Budějovice, Czech Republic; , tel. 387775872, fax. 385310248
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  • For correspondence: dagmara_sirova@hotmail.com
Eliška Rejmánková
3University of California, Department of Environmental Science and Policy, One Shields Avenue, Davis, CA 95616, USA
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  • ORCID record for Eliška Rejmánková
Qiang Lin
1Biology Centre CAS, Institute of Hydrobiology, Na Sádkách 7, CZ-37005, České Budějovice, Czech Republic; , tel. 387775872, fax. 385310248
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  • For correspondence: dagmara_sirova@hotmail.com
Iva Kohoutová
1Biology Centre CAS, Institute of Hydrobiology, Na Sádkách 7, CZ-37005, České Budějovice, Czech Republic; , tel. 387775872, fax. 385310248
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  • For correspondence: dagmara_sirova@hotmail.com
Dagmara Sirová
1Biology Centre CAS, Institute of Hydrobiology, Na Sádkách 7, CZ-37005, České Budějovice, Czech Republic; , tel. 387775872, fax. 385310248
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  • ORCID record for Dagmara Sirová
  • For correspondence: dagmara_sirova@hotmail.com dagmara_sirova@hotmail.com
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Abstract

Despite the low availability of nitrogen (N), the highly productive macrophyte Hydrilla verticillata (L.) is a successful invader of the littoral zones at lake Atitlán, Guatemala, with profound implications for lake ecology. To help answer the question of how Hydrilla, accompanied by the filamentous green alga Cladophora Kützing (Ulvophyceae), sustains fast growth under conditions of N scarcity, we studied the composition and potential biogeochemical function of the associated microbiomes. We combined results from next generation sequencing of associated bacterial and fungal assemblages with traditional microscopy-based taxonomical evaluation of algae and cyanobacteria. We focused on the presence of specific N2-fixing genera and their relative importance. Data on community composition are complemented with measurements of diazotrophic activity. The results expand our knowledge of the ecophysiology of these algae-plant-microbe consortia and suggest that several levels of biological complexity should be considered to fully understand aquatic plant ecology and the process of macrophyte invasions.

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Posted January 11, 2021.
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Complex phyllosphere microbiome aids in the establishment of the invasive macrophyte Hydrilla verticillata (L.) under conditions of nitrogen scarcity
Jiří Bárta, Caio Cesar Pires de Paula, Eliška Rejmánková, Qiang Lin, Iva Kohoutová, Dagmara Sirová
bioRxiv 2021.01.11.426196; doi: https://doi.org/10.1101/2021.01.11.426196
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Complex phyllosphere microbiome aids in the establishment of the invasive macrophyte Hydrilla verticillata (L.) under conditions of nitrogen scarcity
Jiří Bárta, Caio Cesar Pires de Paula, Eliška Rejmánková, Qiang Lin, Iva Kohoutová, Dagmara Sirová
bioRxiv 2021.01.11.426196; doi: https://doi.org/10.1101/2021.01.11.426196

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