Phycicoccus
Phycicoccus is a genus of Gram positive, aerobic, non-endosporeforming bacteria. Species in this genus are mesophilic and have cells that are short rods or coccoid. The genus was first proposed in 2006. The type species "P. jejuensis" was first isolated from dried seaweed from a beach in South Korea. The genus name is derived from Latin "phycos" (seaweed) and coccus, referring to the source of the original isolate and the shape of the cells. However, subsequently discovered species were found to be either short rods or cocci. Other members of this genus have been initially isolated from air , soil, bark, and scoria. Species from this genus produce yellow, white, or cream-colored colonies on R2A agar. All species are mesophilic; most species cannot grow at temperatures above 35-37 °C, with the exception of "P. ginsenosidimutans", which can grow at 45 °C. "P. jejuensis" and "P. aerophilus" are the only psychrotrophs.