effusibacillus pohliae effusibacillus pohliae effusibacillus pohliae is a species of gram positive, aerobic, thermophilic bacterium. the cells are rod-shaped and form spores. it was first isolated from mount melbourne, antarctica. the species is named after the genus of pohlia nutans, a species of moss that was colonizing the area where the type strain was isolated. e. pohliae has also been isolated from a geothermal heat pump in south korea. effusibacillus pohliae scientific classification domain: bacteria division: bacillota class: bacilli order: bacillales family: alicyclobacillaceae genus: effusibacillus species: e. pohliae binomial name effusibacillus pohliaeimperio et al 2008 the species was originally grouped with genus alicyclobacillus. however, further research found that a. pohliae and alicyclobacillus consociatus belonged in a newly described genus effusibacillus, and were renamed accordingly. the optimum growth temperature for e. pohliae is 55 °c, and can grow in the 42-60 °c range. its optimum ph is 5.0, and grows in ph range 4.5-7.5.