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Roles of manganese and organic acid chelators in regulating lignin degradation and biosynthesis of peroxidases by Phanerochaete chrysosporium
Open accessAbstract
We studied the effect of manganese and various organic chelators on the distribution, depolymerization, and mineralization of synthetic 14C-labeled lignins (DHP) in cultures of Phanerochaete chrysosporium. In the presence of high levels of manganese [Mn(II) or Mn(III)], along with a suitable chelator, lignin peroxidase (LiP) production was repressed and manganese peroxidase (MnP) production was stimulated. Even though partial lignin depolymerization was observed under these conditions, further depolymerization of the polymer to smaller compounds was more efficient when low levels of manganese were present. LiPs were prevalent under these latter conditions, but MnPs were also present. Mineralization was more efficient with low manganese. These studies indicate that MnP performs the initial steps of DHP depolymerization but that LiP is necessary for further degradation of the polymer to lower-molecular-weight products and mineralization. We also conclude that a soluble Mn(II)-Mn(III) organic acid complex is necessary to repress LiP.
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Citations
Cited by
Biodegradation and biological treatments of cellulose, hemicellulose and lignin: an overview
Pérez, J., Muñoz-Dorado, J., de la Rubia, T., & Martínez, J. (2002) · International Microbiology · doi:10.1007/s10123-002-0062-3 · Cited by 1,717
BIOGENIC MANGANESE OXIDES: Properties and Mechanisms of Formation
Tebo, B. M., Bargar, J. R., Clement, B. G., Dick, G. J., Murray, K. J., Parker, D., Verity, R., & Webb, S. M. (2004) · Annual Review of Earth and Planetary Sciences · doi:10.1146/annurev.earth.32.101802.120213 · Cited by 1,381
Hatakka, A. (1994) · FEMS Microbiology Reviews · doi:10.1016/0168-6445(94)90076-0 · Cited by 1,157
Review: lignin conversion by manganese peroxidase (MnP)
Hofrichter, M. (2002) · Enzyme and Microbial Technology · doi:10.1016/s0141-0229(01)00528-2 · Cited by 1,040
Litter decomposition and organic matter turnover in northern forest soils
Berg, B. (2000) · Forest Ecology and Management · doi:10.1016/s0378-1127(99)00294-7 · Cited by 992
Metadata
- Authors
- Perez, J., & Jeffries, T. W.
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 1992-08
- Volume
- 58
- Issue
- 8
- Pages
- 2402-2409
- ISSN
- 0099-2240 (ISSN-L)
- 1098-5336
- OpenAlex
- W2142520462
- Cited by
- 240
- References
- 0
- FWCI
- 8.74
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Perez, J., & Jeffries, T. W. (1992). Roles of manganese and organic acid chelators in regulating lignin degradation and biosynthesis of peroxidases by Phanerochaete chrysosporium. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.58.8.2402-2409.1992
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