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Appl Environ Microbiol. 1990 Nov;56(11):3519-26. doi: 10.1128/aem.56.11.3519-3526.1990.

Sensitivity to and Degradation of Pentachlorophenol by Phanerochaete spp.

Applied and environmental microbiology

R T Lamar, M J Larsen, T K Kirk

Affiliations

  1. Institute for Microbial and Biochemical Technology, Forest Products Laboratory, Forest Service, U.S. Department of Agriculture, One Gifford Pinchot Drive, Madison, Wisconsin 53705-2398.

PMID: 16348355 PMCID: PMC185009 DOI: 10.1128/aem.56.11.3519-3526.1990

Abstract

This research measured mycelial extension rates of selected strains of Phanerochaete chrysorhiza, Phanerochaete laevis, Phanerochaete sanguinea, Phanerochaete filamentosa, Phanerochaete sordida, Inonotus circinatus, and Phanerochaete chrysosporium and the ability of these organisms to tolerate and degrade the wood preservative pentachlorophenol (PCP) in an aqueous medium and in soil. Most of the tested species had mycelial extension rates in the range of P. sordida > P. laevis > P. chrysorhiza = P. sanguinea > I. circinatus = P. filamentosa. There were also significant intraspecific differences in mycelial extension rates. For example, mycelial extension rates among strains of P. sordida ranged from 1.78 to 4.81 cm day. Phanerochaete spp. were very sensitive to PCP. Growth of several species was prevented by the presence of 5 ppm (5 mug/g) PCP. However, P. chrysosporium and P. sordida grew at 25 ppm PCP, albeit at greatly decreased mycelial extension rates. In an aqueous medium, mineralization of PCP by P. sordida 13 (ca. 12% after 30 days) was significantly greater than that by all other tested P. sordida strains and P. chrysosporium. After 64 days, the level of PCP had decreased by 96 and 82% in soil inoculated with P. chrysosporium and P. sordida, respectively. Depletion of PCP by these fungi occurred in a two-stage process. The first stage was characterized by a rapid depletion of PCP that coincided with an accumulation of pentachloroanisole (PCA). At the end of the first stage, ca. 64 and 71% of the PCP was converted to PCA in P. chrysosporium and P. sordida cultures, respectively. In the second stage, levels of PCP and PCA were reduced by 9.6 and 18%, respectively, in soil inoculated with P. chrysosporium and by 3 and 23%, respectively, in soil inoculated with P. sordida. PCA was mineralized by both P. chrysosporium and P. sordida in an aqueous medium.

References

  1. Appl Environ Microbiol. 1989 Jan;55(1):154-8 - PubMed
  2. Appl Environ Microbiol. 1987 Sep;53(9):2001-8 - PubMed
  3. Science. 1985 Jun 21;228(4706):1434-6 - PubMed
  4. Can J Microbiol. 1972 Jan;18(1):45-9 - PubMed
  5. Appl Environ Microbiol. 1988 Dec;54(12):2885-9 - PubMed
  6. Appl Environ Microbiol. 1987 Nov;53(11):2689-92 - PubMed
  7. Appl Environ Microbiol. 1986 Jun;51(6):1370-2 - PubMed
  8. J Gen Microbiol. 1974 Dec;85(2):237-43 - PubMed
  9. Can J Microbiol. 1967 Sep;13(9):1243-9 - PubMed
  10. Appl Environ Microbiol. 1990 Oct;56(10):3093-100 - PubMed

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