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Zinka Bartolek on Muck Rack

Zinka Bartolek

As seen in: Nature, BioRxiv
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Articles

Conserved pathway for homarine catabolism in environmental bacteria

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By Frank X. Ferrer-González, Katherine Heal, Anna Finch, Laura Carlson Verified, Lisa Coe, Zinka Bartolek, Samantha Flynn, Matthew Z. Tien, E. Virginia Armbrust, Bryndan P. Durham, Oscar Sosa, Anitra E. Ingalls, Joshua S. Sacks, Yarinet Romero-Maysonet, Claudia B. Luthy, Moira P. Gaffney, Sabine K. Angier, Chiara I. Bachmann Gómez, Jensen M. L. Dunn, Kenzie J. Bay, Lia A. Yamamoto
| Nature Verified
Abstract Homarine (N-methylpicolinic acid) is a ubiquitous marine metabolite produced by phytoplankton and noted for its infochemical properties among marine animals, yet its microbial degradation pathways are uncharacterized. Here we identify a conserved operon (homABCDER) that mediates homarine catabolism in bacteria using comparative transcriptomics, mutagenesis and targeted knockouts.
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Growth phase-specific gene regulation and algicidal interactions between a new A. macleodii strain and the model diatom T. pseudonana

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By David Wiener, Zinka Bartolek, Riley Dunklin, Virginia Armbrust
| BioRxiv
Abstract Phytoplankton-bacteria interactions are pivotal in marine ecosystems, influencing primary production and biogeochemical cycles. Diatoms, in particular, engage in diverse relationships with bacteria, ranging from mutualism to pathogenicity. However, the mechanisms governing the shift between these interactions and how they are shaped by host physiology and environmental context, remain unclear.
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