THE FORMATION OF HYDROGEN-SULFIDE AND METHYL MERCAPTAN BY ORAL BACTERIA
THE FORMATION OF HYDROGEN-SULFIDE AND METHYL MERCAPTAN BY ORAL BACTERIA
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DOI：
10.1111/j.1399-302x.1990.tb00645.x
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发表时间：
1990-08-01
影响因子：
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通讯作者：
CARLSSON, J
中科院分区：
文献类型：
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作者：
PERSSON, S;EDLUND, MB;CARLSSON, J
在从龈下微生物菌群中分离的细菌和代表性数量的参考菌株中测试形成挥发性硫化合物的能力。75种测试的口腔细菌物种和7种未命名的细菌分类群中的大多数从L-半胱氨酸形成显著量的硫化氢。最活跃的细菌是消化链霉菌属、真杆菌属、月单胞菌属、鹅不食草菌属、拟杆菌属和梭杆菌属。由L-甲硫氨酸生成的甲硫氨酸由梭杆菌属、拟杆菌属、卟啉单胞菌属和真杆菌属的一些成员形成。当在血清中孵育7 d时，最有效的硫化氢生产者是齿垢密螺旋体和黑色色素种，中间拟杆菌，类杆菌loescheii，牙髓卟啉单胞菌和牙龈卟啉单胞菌。牙髓卟啉单胞菌和牙龈卟啉单胞菌也在血清中产生大量的甲基苯丙胺。在血清中或存在L-半胱氨酸和L-蛋氨酸的情况下，未检测到其他挥发性硫化合物。这些发现大大增加了已知产生挥发性硫化合物的口腔细菌的名单。
The capacity to form volatile sulfur compounds was tested in bacteria isolated from subgingival microbiotas and in a representative number of reference strains. A majority of the 75 tested oral bacterial species and 7 unnamed bacterial taxa formed significant amounts of hydrogen sulfide from L-cysteine. The most active bacteria were found in the genera Peptostreptococcus, Eubacterium, Selenomonas, Centipeda, Bacteriodes and Fusobacterium. Methyl mercaptan from L-methionine was formed by some members of the genera Fusobacterium, Bacteroides, Porphyromonas and Eubacterium. When incubated in serum for 7 d, the most potent producers of hydrogen sulfide were Treponema denticola and the black-pigmented species, Bacteroides intermedius, Bacteroides loescheii, Porphyromonas endodontalis and Porphyromonas gingivalis. P. endodontalis and P. gingivalis also produced significant amounts of methyl mercaptan in serum. No other volatile sulfur compound was detected in serum or in the presence of L-cysteine and L-methionine. These findings significantly increase the list of oral bacteria known to produce volatile sulfur compounds.