Transfer of Polychlorophenol-Degrading Rhodococcus chlorophenolicus (Apajalahti et al. 1986) to the Genus Mycobacterium as Mycobacterium chlorophenolicum comb. nov.

Hägglblom, Max M.; Nohynek, Liisa; Palleroni, Norberto J.; Kronqvist, K.; Nurmiaho‐Lassila, Eeva‐Liisa; Salkinoja‐Salonen, Mirja; Klatte, Stefan; Kroppenstedt, Reiner M.

doi:10.1099/00207713-44-3-485

Cited by 82 publications

(18 citation statements)

References 21 publications

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“…Häggblom and Valo (1995), McAllister et al (1996), and Melin (1996, 1998)]. Gram-negative and gram-positive polychlorophenol-degrading bacterial species of the genera Mycobacterium (Häggblom et al 1994), Rhodococcus (Briglia et al 1996), Streptomyces (Golovleva et al 1992), and Sphingomonas (Nohynek et al 1995) have been described.…”

Section: Introductionmentioning

confidence: 97%

Diversity of chlorophenol-degrading bacteria isolated from contaminated boreal groundwater

Männistö¹,

Tiirola

Salkinoja‐Salonen

et al. 1999

Archives of Microbiology

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Chlorophenol-degrading bacteria from a long-term polluted groundwater aquifer were characterized. All isolates degraded 2,4,6-trichlorophenol and 2,3,4,6-tetrachlorophenol at concentrations detected in the contaminated groundwater (< 10 mg 1(-1)). Pentachlorophenol was degraded by three isolates when present alone. In two gram-positive isolates, 2,3,4,6-tetrachlorophenol was required as an inducer for the degradation of pentachlorophenol. The gram-positive isolates were sensitive to pentachlorophenol, with an IC50 value of 5 mg/l. Isolates belonging to the Cytophaga/Flexibacter/Bacteroides phylum had IC50 values of 25 and 63 mg/l. Isolates belonging to alpha-, beta- and gamma-Proteobacteria generally tolerated the highest pentachlorophenol concentrations (> 100 mg/l). Polychlorophenol-degrading capacity was found in strains of Nocardioides, Pseudomonas, Ralstonia, Flavobacterium, and Caulobacter previously not known to degrade polychlorophenols. In addition, six polychlorophenol-degrading sphingomonads were found.

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Section: Introductionmentioning

confidence: 97%

Diversity of chlorophenol-degrading bacteria isolated from contaminated boreal groundwater

Männistö¹,

Tiirola

Salkinoja‐Salonen

et al. 1999

Archives of Microbiology

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“…Drugresistant tuberculosis became a worldwide problem in both immunocompetent and HIV-infected populations [7,8]. Although progress is noticeable, control of tuberculosis is hampered by the fact that tuberculosis and HIV disease are closely linked in a mutually disadvantageous synergy: HIV infection M. cookii [10] Slow No 1992 M. abscessus [11] Rapid Yes 1992 M. alvei [12] Rapid Yes 1992 M. confluentis [13] Rapid Yes 1992 M. peregrinum [11] Rapid Yes 1993 M. brumae [14] Rapid Yes 1993 M. celatum [15] Slow Yes 1993 M. genavense [16] Slow Yes 1993 M. hiberniae [17] Slow No 1993 M. intermedium [18] Slow Yes 1993 M. interjectum [19] Slow Yes 1994 M. chlorophenolicum [20] Rapid No 1995 M. branderi [21] Slow Yes 1995 M. conspicuum [22] Slow Yes 1995 M. mucogenicum [23] Rapid Yes 1996 M. hodleri [24] Rapid [39] Slow Yes promotes the progression of M. tuberculosis infection to disease, and tuberculosis accelerates the course of HIV disease [9]. In 1975, the genus Mycobacterium comprised some 30 species; 25 years later, it comprises close to 100.…”

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confidence: 99%

Laboratory Diagnosis of Mycobacterial Infections: New Tools and Lessons Learned

Hale

Pfyffer

2001

CLIN INFECT DIS

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Even in the 21st century, tuberculosis continues to be a problem. Although the number of cases continues gradually to decrease in the United States, cases get more difficult to treat, specifically those that are multiple-drug resistant. Infection of one-third of the world's population ensures that tuberculosis will not disappear in the near future. In light of this, it will be useful to know the goals for the health care system and how these goals may be accomplished. Laboratory testing in the mycobacteriology field is experiencing more changes today than ever before. Determining what assays will be most useful to the clinician is a challenge, and acceptance of the new technology by the medical community an even greater one. Clinicians must use the best available resources to determine the most appropriate care for their patients and work together with the laboratory to ensure that the communication channels are open. This review focuses on current state-of-the-art resources useful for accurate and rapid laboratory diagnosis of mycobacterial infections.

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“…Studies have shown that this group of Gram-positive bacteria can transform and degrade xenobiotic compounds. Hagglblom et al (1994) identified an actinomycete, denominated Rhodococus chlorophenolicus, that mineralizes PCP.…”

Section: Resultsmentioning

confidence: 99%

“…Its relative resistance to biological degradation, which is the reason for its use as a preservative, creates a pollution problem when this compound enters the environment (Galil & Novac, 1995). When exposed to these types of compounds, however, microorganisms such as bacteria and fungi can develop the ability to use them as a source of carbon, causing their own biodegradation (Hagglblom et al, 1994). Biological processes can be used to degrade these residues because these processes convert wastes into inoffensive and completely mineralized products (Field et al, 1995) or into less resistant or toxic compounds.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the ability of sludge to degrade PCP under anaerobic conditions

Bolaños

Damianovic

Zaiat

et al. 2005

Braz. J. Chem. Eng.

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-The capacity of sludge from different sources to degrade pentachlorophenol (PCP) was evaluated. Three 2.5 liter reactors (R 1 , R 2 , and R 3 ) were inoculated with different anaerobic sludges, semi continuously fed and maintained in orbital motion at 30±1°C. R 1 was inoculated with aerobic sludge and river sediment collected downstream from a pulp and paper plant. R 2 received sludge from an anaerobic reactor treating effluents from a paper recycling plant and R 3 received anaerobic sludge from a biodigestor treating industrial and domestic effluents. The sludges were first acclimatized to a culture medium generally recommended for organochloride anaerobic degradation studies. The reactors were then subjected to increasing concentrations of PCP from 0.05 to 10.0 mg.l -1. PCP degradation and metabolite formation were monitored using gas chromatography, and the effects of PCP on the anaerobic process were verified by monitoring pH, volatile fatty acids, alkalinity, total suspended solids, and chemical oxygen demand. It was found that PCP did not affect reactor performance. All the sludges displayed the best PCP degradation capacity at a concentration of 0.2 mg.l -1 , producing fewer chlorinated metabolites than when higher PCP concentrations were applied. R 1 consistently produced fewer chlorinated metabolites, confirming the hypothesis that pre exposure to chlorinated compounds improves the sludge's capacity to degrade PCP.

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Transfer of Polychlorophenol-Degrading Rhodococcus chlorophenolicus (Apajalahti et al. 1986) to the Genus Mycobacterium as Mycobacterium chlorophenolicum comb. nov.

Cited by 82 publications

References 21 publications

Diversity of chlorophenol-degrading bacteria isolated from contaminated boreal groundwater

Diversity of chlorophenol-degrading bacteria isolated from contaminated boreal groundwater

Laboratory Diagnosis of Mycobacterial Infections: New Tools and Lessons Learned

Assessment of the ability of sludge to degrade PCP under anaerobic conditions

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