Stakelama pacifica gen. nov., sp. nov., a new member of the family Sphingomonadaceae isolated from the Pacific Ocean.

A Gram reaction-negative, weakly motile, non-spore-forming, rod-shaped, aerobic bacterium designated strain JLT832(T) was isolated from surface water of the central Pacific Ocean and formed yellow colonies on rich organic (RO) medium. The strain was oxidase-negative and catalase-positive. Acid was produced from mannitol, glucose, sucrose, lactose, sorbitol, maltose, (+)-trehalose and d-fructose.

Mameliella alba gen. nov., sp. nov., a marine bacterium of the Roseobacter clade in the order Rhodobacterales.

A Gram-negative, non-motile, rod-shaped bacterial strain, JLT354-W(T), that accumulates poly-beta-hydroxybutyrate granules was isolated from the South China Sea. Phylogenetic analysis based on 16S rRNA gene sequences showed that the strain was related to members of the genera Antarctobacter, Sagittula, Oceanicola and Loktanella; levels of similarity between strain JLT354-W(T) and members of the above genera were less than 92.0 %.