Sivendra R, Tan S H
J Clin Microbiol. 1977 May;5(5):514-6. doi: 10.1128/jcm.5.5.514-516.1977.
Nonpigmented cultures of Chromobacterium violaceum have been found to be similar to pigmented cultures in their virulence for mice and the pathology of their infections. Clinicians and microbiologists should be prepared to consider nonpigmented C. violaceum in their differential diagnoses of infections caused by gram-negative bacteria. The laboratorian who is not aware of this possibility is likely to erroneously identify nonpigmented strains of C. violaceum as members of closely associated genera, particularly Aeromonas. It is known that violet pigmentation is not an essential feature or an exclusive character of the genus Chromobacterium. This study has also shown that pigmentation of C. violaceum is not related to its pathogenicity or to the pathology of its infections.
已发现紫色色杆菌的非色素产生培养物在对小鼠的毒力及其感染病理学方面与色素产生培养物相似。临床医生和微生物学家在对革兰氏阴性菌引起的感染进行鉴别诊断时应考虑到非色素产生的紫色色杆菌。不了解这种可能性的实验室工作人员很可能会错误地将非色素产生的紫色色杆菌菌株鉴定为密切相关属的成员，尤其是气单胞菌属。已知紫色色素沉着并非紫色色杆菌属的本质特征或唯一特征。本研究还表明，紫色色杆菌的色素沉着与其致病性或感染病理学无关。
