MeSH definition : A genus of gram-negative, aerobic, rod-shaped bacteria found in wet soil containing
decaying organic material and in water. Cells tend to be pleomorphic if grown on media
containing succinate or coccoid if grown in the presence of an alcohol as the sole
carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed);
A genus of gram-negative, aerobic, rod-shaped bacteria found in wet soil containing
decaying organic material and in water. Cells tend to be pleomorphic if grown on media
containing succinate or coccoid if grown in the presence of an alcohol as the sole
carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed)