| legionella sainthelensi: a new species of legionella isolated from water near mt. st. helens. | six strains of a new species, legionella sainthelensi, were isolated from freshwater in areas affected by the volcanic eruptions of mt. st. helens in the state of washington. strains of l. sainthelensi are culturally and biochemically similar to other legionellae. they grow on buffered charcoal yeast agar but not on media that lack cysteine. they are gram-negative, nonsporeforming, motile rods that are positive in reactions for catalase, oxidase, gelatin liquefaction, and beta-lactamase. they ar ... | 1984 | 6712210 |