Martinez D, Prior P
Institut d'Elevage et de Médecine Vétérinaire des Pays Tropicaux (IEMVT), Guadeloupe, West Indies.
Vet Microbiol. 1991 Oct;29(2):135-45. doi: 10.1016/0378-1135(91)90121-u.
The survival of a rifampicin-resistant mutant of Dermatophilus congolensis in vertisol and oxisol soils from Guadeloupe and in their constitutive clays was studied using a pneumatic device for controlling water potentials (pF). Experiments were carried out at two pF values simulating the wet season and the dry season. Survival time depended on the type of soil and its water content. Organic matter had a protective effect on the microorganism in oxisol but not in vertisol. The pathogenicity of D. congolensis was preserved in the soils which could therefore act as temporary reservoirs of this pathogen. Long-term survival of this organism in soils mixed with water suggests that ponds and dipping tanks may constitute sources of infection for cattle.
使用一种用于控制水势(pF)的气动装置,研究了刚果嗜皮菌的耐利福平突变体在瓜德罗普岛的变性土和氧化土及其组成性黏土中的存活情况。实验在模拟雨季和旱季的两个pF值下进行。存活时间取决于土壤类型及其含水量。有机物对氧化土中的微生物有保护作用,但对变性土中的微生物没有保护作用。刚果嗜皮菌的致病性在土壤中得以保留,因此土壤可能作为这种病原体的临时储存库。该生物体在与水混合的土壤中的长期存活表明,池塘和浸液池可能构成牛的感染源。