Alexandra Z. Worden

Green Evolution and Dynamic Adaptations Revealed by Genomes of the Marine Picoeukaryotes Micromonas (2009)

Worden, Alexandra Z., Lee, Jea-Hyeok, Mock, Thomas, Rouzé, Pierre, Simmons, Melinda P., Aerts, Andrea L., ...

Picoeukaryotes are a taxonomically diverse group of organisms less than 2 micrometers in diameter. Photosynthetic marine picoeukaryotes in the genus Micromonas thrive in ecosystems ranging from...

New Insights into the Nature and Phylogeny of Prasinophyte Antenna Proteins: Ostreococcus tauri, a Case Study (2005)

Six, Christophe, Worden, Alexandra Z., Rodríguez, Francisco, Moreau, Hervé, Partensky, Frédéric

The basal position of the Mamiellales (Prasinophyceae) within the green lineage makes these unicellular organisms key to elucidating early stages in the evolution of chlorophyll a/b-binding...

New Insights into the Nature and Phylogeny of Prasinophyte Antenna Proteins: Ostreococcus tauri, a Case Study (2005)

Six, Christophe, Worden, Alexandra Z., Rodríguez, Francisco, Moreau, Hervé, Partensky, Frédéric

The basal position of the Mamiellales (Prasinophyceae) within the green lineage makes these unicellular organisms key to elucidating early stages in the evolution of chlorophyll a/b–binding...

New Insights into the Nature and Phylogeny of Prasinophyte Antenna Proteins: Ostreococcus tauri, a Case Study (2005)

Six, Christophe, Worden, Alexandra Z., Rodríguez, Francisco, Moreau, Hervé, Partensky, Frédéric

The basal position of the Mamiellales (Prasinophyceae) within the green lineage makes these unicellular organisms key to elucidating early stages in the evolution of chlorophyll a/b-binding...

In Situ Hybridization of Prochlorococcus and Synechococcus (Marine Cyanobacteria) spp. with rRNA-Targeted Peptide Nucleic Acid Probes

Worden, Alexandra Z., Chisholm, Sallie W., Binder, Brian J.

A simple method for whole-cell hybridization using fluorescently labeled rRNA-targeted peptide nucleic acid (PNA) probes was developed for use in marine cyanobacterial picoplankton. In contrast to...

Growth of Vibrio cholerae O1 in Red Tide Waters off California

Mouriño-Pérez, Rosa R., Worden, Alexandra Z., Azam, Farooq

Vibrio cholerae serotype O1 is autochthonous to estuarine and coastal waters. However, its population dynamics in such environments are not well understood. We tested the proliferation of V. cholerae...

In Situ Hybridization of Prochlorococcus and Synechococcus (Marine Cyanobacteria) spp. with rRNA-Targeted Peptide Nucleic Acid Probes

Worden, Alexandra Z., Chisholm, Sallie W., Binder, Brian J.

A simple method for whole-cell hybridization using fluorescently labeled rRNA-targeted peptide nucleic acid (PNA) probes was developed for use in marine cyanobacterial picoplankton. In contrast to...

Growth of Vibrio cholerae O1 in Red Tide Waters off California

Mouriño-Pérez, Rosa R., Worden, Alexandra Z., Azam, Farooq

Vibrio cholerae serotype O1 is autochthonous to estuarine and coastal waters. However, its population dynamics in such environments are not well understood. We tested the proliferation of V. cholerae...

Genome analysis of the smallest free-living eukaryote Ostreococcus tauri unveils many unique features

Derelle, Evelyne, Ferraz, Conchita, Rombauts, Stephane, Rouzé, Pierre, Worden, Alexandra Z., Robbens, Steven, ...

The green lineage is reportedly 1,500 million years old, evolving shortly after the endosymbiosis event that gave rise to early photosynthetic eukaryotes. In this study, we unveil the complete genome...

Early Gene Duplication Within Chloroplastida and Its Correspondence With Relocation of Starch Metabolism to Chloroplasts

Deschamps, Philippe, Moreau, Hervé, Worden, Alexandra Z., Dauvillée, David, Ball, Steven G.

The endosymbiosis event resulting in the plastid of photosynthetic eukaryotes was accompanied by the appearance of a novel form of storage polysaccharide in Rhodophyceae, Glaucophyta, and...

Widespread distribution of a unique marine protistan lineage

Cuvelier, Marie L, Ortiz, Alejandra, Kim, Eunsoo, Moehlig, Heike, Richardson, David E, Heidelberg, John F, ...

Unicellular eukaryotes (protists) are key components of marine food webs, yet knowledge of their diversity, distributions and respective ecologies is limited. We investigated uncultured protists...