Growth substrate selection and biodegradation of PCP by New Zealand white-rot fungi

Journal of Environmental Management
M WalterC Ford

Abstract

Nine New Zealand native white-rot fungi were studied for their ability to grow and survive on different substrates formulated from bark, wheat straw, sawdust, apple pomace and maize products in order to identify their pentachlorophenol (PCP) biodegradation potential and to select a fungal carrier for bioaugmentation of polluted soils. Isolates were also evaluated to mineralize (14)C-PCP in liquid culture and in soil. The American fungus Phanerochaete chrysosporium outgrew the native fungi on the substrates tested, but the high colonisation did not result in superior PCP dechlorination as measured by chloride release. Whilst Trametes versicolor inocula produced on wheat straw and SCS (sawdust-corn meal-starch-mix) gave the highest chloride release, colonization of these two substrates as measured by biological potential was lower compared to the pomace and pomace-sawdust-mix. Neither lignin peroxidase nor manganese peroxidase production were measured for New Zealand white-rot fungi during the experiments. Laccase was the only enzyme detected. In liquid culture, the mineralisation rate was higher for T. versicolor isolates compared to P. chyrysoporium. Very little to no pentachloroanisole (PCA) was captured in the volatile fracti...Continue Reading

References

Feb 1, 1994·Environmental Science & Technology·D P Barr, S D Aust

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Citations

Dec 3, 2014·Ecotoxicology and Environmental Safety·Yan ChengHing Man Chan
Apr 29, 2008·Chemosphere·Adriana LongoriaRafael Vázquez-Duhalt
May 2, 2015·Ecotoxicology and Environmental Safety·Chengdong ZhangMingchun Li
Oct 3, 2007·Journal of Environmental Monitoring : JEM·Iain McLellanMaria Leitão
Jul 5, 2012·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Ahmet Çabukİsa Sidir

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