Smith H W, Parsell Z
J Gen Microbiol. 1975 Mar;87(1):129-40. doi: 10.1099/00221287-87-1-129.
Three of 152 strains of Escherichia coli transmitted their ability to utilize sucrose (Sac+) to other strains by conjugation. The transfer factor of one of them and of a Sac+ Salmonella thompson strain was thermosensitive. The raffinose-utilizing ability of 27 of 163 E. coli strains was also transmissible. Transmissible raffinose-utilizing ability was a feature of porcine enterpathogenic strains possessing the K88 antigen. The determinants controlling raffinose utilization (Raf) and K88 antigen production were commonly transmitted together from these strains; so also was the determinant controlling enterotoxin production, but to a lesser extent. It was not possible to transfer lactose-utilizing ability from 320 strains of E. coli, salicin-utilizing ability from 12 strains of E. coli or dulcitol-utilizing ability from 99 strains of E. coli and 88 strains of salmonellae. Sucrose- and raffinose-utilizing ability were transmitted separately to several Salmonella sp., including Salm. typhi, to Shigella flexneri and Sh. sonnei and to a variety of strains of E. coli. A strain of Salm. typhimurium in which Sac had been established and a strain of E. coli in which Raf had been established survived less well in the alimentary tract of chickens than their Sac minus or Raf minus parent strains.
152株大肠杆菌中有3株通过接合作用将利用蔗糖的能力（蔗糖利用阳性，Sac+）传递给了其他菌株。其中一株以及一株蔗糖利用阳性的汤普森沙门氏菌的转移因子对温度敏感。163株大肠杆菌中有27株利用棉子糖的能力也可传递。可传递的利用棉子糖的能力是具有K88抗原的猪肠道致病菌株的一个特征。控制棉子糖利用（Raf）和K88抗原产生的决定因素通常从这些菌株中共同传递；控制肠毒素产生的决定因素也是如此，但程度较小。无法从320株大肠杆菌中转移利用乳糖的能力，从12株大肠杆菌中转移利用水杨苷的能力，或从99株大肠杆菌和88株沙门氏菌中转移利用卫矛醇的能力。利用蔗糖和棉子糖的能力分别传递给了几种沙门氏菌，包括伤寒沙门氏菌、弗氏志贺氏菌和宋内氏志贺氏菌以及多种大肠杆菌菌株。一株已确定具有蔗糖利用能力的鼠伤寒沙门氏菌和一株已确定具有棉子糖利用能力的大肠杆菌在鸡的消化道中的存活能力不如它们蔗糖利用阴性或棉子糖利用阴性的亲本菌株。
