Methylobacterium spp. as an indicator for the presence or absence of Mycobacterium spp.

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• 作者：Joseph O. Falkinham III^a ; ^{jofiii@vt.edu" class="auth_mail" title="E-mail the corresponding author} ; Myra D. Williams^a ; Rebecca Kwait^b ; Leah Lande^b
• 关键词：Biofilms ; Methylobacterium ; Mycobacterium ; Mycobacterium avium ; Pigmentation ; Premise plumbing
• 刊名：International Journal of Mycobacteriology
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：5
• 期：2
• 页码：240-243
• 全文大小：242 K

文摘

A published survey of bacteria in showerhead biofilm samples revealed that Methylobacterium spp. and Mycobacterium spp. seldom coexisted in biofilms.

Methods

To confirm that information, biofilm samples were collected from household plumbing of Mycobacterium avium patients and Methylobacterium spp. and M. avium numbers were measured by direct colony counts.

Results

The results demonstrated that if Methylobacterium spp. were present, Mycobacterium spp. were absent, and the opposite.

Conclusion

The data demonstrate that microbial populations in biofilms can influence the presence or absence of opportunistic premise plumbing pathogens and, thereby, increase the range of strategies to reduce exposure to waterborne pathogens. Finally, by assessing for the visual presence of methylobacteria as pink pigmentation on showers and shower curtains, homeowners and managers of hospitals and other buildings can quickly determine whether a premise plumbing biofilm sample has mycobacteria with a high degree of assurance.