Phylogenomic diversity of species and other Gammaproteobacteria isolated from Pacific oysters () during a summer mortality outbreak.

The Pacific oyster (PO), , is an important commercial marine species but periodically experiences large stock losses due to disease events known as summer mortality. Summer mortality has been linked to environmental perturbations and numerous viral and bacterial agents, indicating this disease is multifactorial in nature. In 2013 and 2014, several summer mortality events occurred within the Port Stephens estuary (NSW, Australia).

Recovery of diverse genes for class 1 integron-integrases from environmental DNA samples.

Class 1 integrons are an important vector for the spread of antibiotic resistance. The core of this genetic element is highly conserved in all class 1 integrons recovered from clinical contexts. Recently, bacteria containing more divergent class 1 integrons have been isolated from environmental samples, suggesting undiscovered diversity in these elements.