{"title":"肽聚糖对二氧化钛光催化杀菌活性的影响。","authors":"Ayano Takao, Tomonori Suzuki","doi":"10.4265/bio.25.167","DOIUrl":null,"url":null,"abstract":"<p><p>For the elucidation of the mechanism underlying the photocatalytic bactericidal activity of titanium dioxide (TiO<sub>2</sub>), we focused on the peptidoglycan layer, a component of the bacterial cell wall. The effect of this layer on the photocatalytic bactericidal activity of TiO<sub>2</sub> was evaluated by determining the survival rates of Lactobacillus plantarum (intact cells) and its protoplast cells. Mesoplasma florum, which does not originally possess the peptidoglycan layer, was also used. Our results revealed that the survival rates of the intact cells were lower than those of the protoplast cells. In addition, there was no significance between the survival rates of M. florum cells and the protoplast cells of L. plantarum. It was suggested that the presence of the peptidoglycan layer increases the bactericidal effect by the photocatalysis.</p>","PeriodicalId":8777,"journal":{"name":"Biocontrol science","volume":"25 3","pages":"167-171"},"PeriodicalIF":0.9000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"The Effects of Peptidoglycan on the Photocatalytic Bactericidal Activity of Titanium Dioxide.\",\"authors\":\"Ayano Takao, Tomonori Suzuki\",\"doi\":\"10.4265/bio.25.167\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>For the elucidation of the mechanism underlying the photocatalytic bactericidal activity of titanium dioxide (TiO<sub>2</sub>), we focused on the peptidoglycan layer, a component of the bacterial cell wall. The effect of this layer on the photocatalytic bactericidal activity of TiO<sub>2</sub> was evaluated by determining the survival rates of Lactobacillus plantarum (intact cells) and its protoplast cells. Mesoplasma florum, which does not originally possess the peptidoglycan layer, was also used. Our results revealed that the survival rates of the intact cells were lower than those of the protoplast cells. In addition, there was no significance between the survival rates of M. florum cells and the protoplast cells of L. plantarum. It was suggested that the presence of the peptidoglycan layer increases the bactericidal effect by the photocatalysis.</p>\",\"PeriodicalId\":8777,\"journal\":{\"name\":\"Biocontrol science\",\"volume\":\"25 3\",\"pages\":\"167-171\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2020-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biocontrol science\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.4265/bio.25.167\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biocontrol science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.4265/bio.25.167","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
The Effects of Peptidoglycan on the Photocatalytic Bactericidal Activity of Titanium Dioxide.
For the elucidation of the mechanism underlying the photocatalytic bactericidal activity of titanium dioxide (TiO2), we focused on the peptidoglycan layer, a component of the bacterial cell wall. The effect of this layer on the photocatalytic bactericidal activity of TiO2 was evaluated by determining the survival rates of Lactobacillus plantarum (intact cells) and its protoplast cells. Mesoplasma florum, which does not originally possess the peptidoglycan layer, was also used. Our results revealed that the survival rates of the intact cells were lower than those of the protoplast cells. In addition, there was no significance between the survival rates of M. florum cells and the protoplast cells of L. plantarum. It was suggested that the presence of the peptidoglycan layer increases the bactericidal effect by the photocatalysis.
期刊介绍：
The Biocontrol Science provides a medium for the publication of original articles, concise notes, and review articles on all aspects of science and technology of biocontrol.
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