Catabolic Ornithine Carbamoyltransferase Activity Facilitates Growth of Staphylococcus aureus in Defined Medium Lacking Glucose and Arginine.

Previous studies have found that arginine biosynthesis in Staphylococcus aureus is repressed via carbon catabolite repression (CcpA), and proline is used as a precursor. Unexpectedly, however, robust growth of S. aureus is not observed in complete defined medium lacking both glucose and arginine (CDM-R).

A panel of diverse clinical isolates for research and development.

Objectives: is a leading cause of community- and hospital-acquired infections. Successful treatment is hampered by its remarkable ability to rapidly develop resistance to antimicrobial agents, primarily through mutation. In response, WHO listed carbapenem-resistant as a Priority 1 (Critical) pathogen for research and development of new treatments.

A Diverse Panel of Clinical Acinetobacter baumannii for Research and Development.

Over the past two decades, has emerged as a leading cause of nosocomial infections worldwide. Of particular concern are panresistant strains, leading the World Health Organization (WHO) to designate carbapenem-resistant as a priority 1 (critical) pathogen for research and development of new antibiotics. A key component in supporting this effort is accessibility to diverse and clinically relevant strains for testing.

Genome Sequence of a Salmonella enterica subsp. enterica Serovar Corvallis Strain Isolated from Human Blood.

subsp. serovar Corvallis is commonly reported in avian populations and avian by-products. We report the draft genome sequence of a multidrug-resistant Corvallis strain (NPHL 15376).

Discovery of Adults Linked to Cloning Oceanic Starfish Larvae (, Asteroidea: Echinodermata).

Two juvenile specimens of a new species of were collected at Parque Nacional Arrecife Alacranes and Triángulos Oeste in the southern Gulf of Mexico. DNA of mitochondrial loci identifies them as members of the same clade as cloning larvae of found abundantly in waters of the Florida Current-Gulf Stream system, and distinct from and , the two known Oreasteridae species in the North Atlantic. Larvae from the new species of persist as clones but also metamorphose and settle to the benthos with typical asteroid morphology.