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Full-Text Articles in Marine Biology
Interactions Between Chytrids Cause Variable Infection Strategies On Harmful Algal Bloom Forming Species, Katelyn M. Mckindles, R. Michael L. Mckay, George S. Bullerjahn, Thijs Frenken
Interactions Between Chytrids Cause Variable Infection Strategies On Harmful Algal Bloom Forming Species, Katelyn M. Mckindles, R. Michael L. Mckay, George S. Bullerjahn, Thijs Frenken
Great Lakes Institute for Environmental Research Publications
Cyanobacteria have a great diversity of natural enemies, such as herbivores and pathogens, including fungal pathogens within the Chytridiomycota (chytrids). While these pathogens have been previously described on a select number of cyanobacterial hosts and are suspected to play a significant ecological role, little is understood about species interactions and how competition between parasites can affect epidemic development and bloom formation. Here, three Planktothrix agardhii isolates from Sandusky Bay, Lake Erie (OH, USA) were challenged in monoculture and polyculture against infection by three isolates (C1, C2, C10) of their obligate chytrid fungal pathogen, Rhizophydiales sp. The chytrid isolates were inoculated …
Multi-Year Molecular Quantification And ‘Omics Analysis Of Planktothrix-Specific Cyanophage Sequences From Sandusky Bay, Lake Erie, Katelyn M. Mckindles, Makayla Manes, Michelle Neudeck, Robert Michael Mckay, George S. Bullerjahn
Multi-Year Molecular Quantification And ‘Omics Analysis Of Planktothrix-Specific Cyanophage Sequences From Sandusky Bay, Lake Erie, Katelyn M. Mckindles, Makayla Manes, Michelle Neudeck, Robert Michael Mckay, George S. Bullerjahn
Great Lakes Institute for Environmental Research Publications
Introduction: Planktothrix agardhii is a microcystin-producing cyanobacterium found in Sandusky Bay, a shallow and turbid embayment of Lake Erie. Previous work in other systems has indicated that cyanophages are an important natural control factor of harmful algal blooms. Currently, there are few cyanophages that are known to infect P. agardhii, with the best-known being PaV-LD, a tail-less cyanophage isolated from Lake Donghu, China. Presented here is a molecular characterization of Planktothrix specific cyanophages in Sandusky Bay. Methods and Results: Putative Planktothrix-specific viral sequences from metagenomic data from the bay in 2013, 2018, and 2019 were identified by two approaches: homology …