产生和不产生乳链菌肽的乳酸链球菌中的溶原性。
Lysogeny in lactic streptococci producing and not producing nisin.
作者信息
Kozak W, Rajchert-Trzpil M, Zajdel J, Dobrzański W T
出版信息
Appl Microbiol. 1973 Feb;25(2):305-8. doi: 10.1128/am.25.2.305-308.1973.
Eighty-seven strains of lactic streptococci (46 of Streptococcus lactis, 24 of S. diacetilactis, and 17 of S. cremoris) were tested for lysogeny; 12 S. lactis strains produced nisin. Lysogeny was found in five S. lactis strains (two of them were nisin producers) and in two S. diacetilactis strains. Four S. lactis and two S. diacetilactis lysogens liberated phages both spontaneously and after ultraviolet treatment, and one S. lactis strain liberated phages spontaneously only. No lysogens were found among the S. cremoris strains tested. An initial characterization of the lysogens and their phages was made. The lytic spectrum of some of the examined phages was very narrow (homospecific), whereas that of others was wide, including strains of the three investigated species.
对87株乳酸链球菌（46株乳酸乳球菌、24株双乙酰乳球菌和17株乳脂乳球菌）进行了溶原性检测；12株乳酸乳球菌菌株产生了乳链菌肽。在5株乳酸乳球菌菌株（其中2株为乳链菌肽产生菌）和2株双乙酰乳球菌菌株中发现了溶原性。4株乳酸乳球菌和2株双乙酰乳球菌溶原菌在紫外线处理后均能自发释放噬菌体，1株乳酸乳球菌菌株仅能自发释放噬菌体。在所检测的乳脂乳球菌菌株中未发现溶原菌。对溶原菌及其噬菌体进行了初步鉴定。一些检测到的噬菌体的裂解谱非常窄（同种特异性），而其他噬菌体的裂解谱则很宽，包括所研究的三个物种的菌株。
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