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病原菌:革兰氏染色阴性或染色不定杆菌,活细胞大约0.8×1.0-3.0微米,以单个、成对或短链存在;通常具有荚膜,靠1-8根周身鞭毛运动。生长温度6-30℃,最适温度25～27.5℃。在3-5℃不生长;在37℃培养时,因研究者不同而有各种各样的生长和不生长的报道。在含有蔗(50.0克/升)的营养琼脂上形成半球形,粘液状菌落,培养3天菌落直径约3-4毫米,呈奶油色和颗粒状结构。在含有烟酸的培养基里,铵盐做为主要氮源来利用,全部的株系都需要烟酸。好气性,在厌气条件下生长很差。
Pathogens: Gram-negative or stains, the viable cells are about 0.8 × 1.0-3.0 μm, present as single, paired or short chains; usually have a capsule that runs around the body of the whole body of 1-8. Growth temperature 6-30 ℃, the optimum temperature 25 ~ 27.5 ℃. No growth at 3-5 ℃; When cultured at 37 ℃, due to different researchers have a variety of growth and non-growth reports. A hemispherical, mucoid colonies were formed on nutrient agar containing cane (50.0 g / L). The colony was approximately 3 to 4 mm in diameter on a 3-day culture day with a creamy and granular structure. In nicotinic acid-containing media, ammonium is used as the major nitrogen source and all the strains require niacin. Vulnerability, poor growth in anaerobic conditions.