Degradation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans by the white rot fungus Phanerochaete sordida YK-624
Degradation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans by the white rot fungus Phanerochaete sordida YK-624
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白腐菌Phanerochaete sordida YK-624降解多氯二苯并二恶英和多氯二苯并呋喃
DOI：
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发表时间：
1996
影响因子：
4.4
通讯作者：
K. Sakai
中科院分区：
文献类型：
--
作者：
S. Takada;Matayoshi Nakamura;T. Matsueda;R. Kondo;K. Sakai
研究了一种利用白腐菌降解二恶英的方法。在固定低氮培养基中，研究了白腐菌Phanerochaete sordida YK-624对10种四至八氯二苯并对二恶英（多氯二苯并对二恶英[PCDDs]）和四至八氯二苯并呋喃（多氯二苯并呋喃[PCDFs]）分子2-、3-、7-和8位氯化的混合物的降解作用。pcdd和pcdf的降解百分比分别约为40%（四氯-）至76%（六氯-）和45%（四氯-）至70%（六氯-）。P. sordida YK-624形成的2、3、7、8-四氯和octaCDD的代谢产物分别为4,5-二氯儿茶酚和四氯儿茶酚。结果表明，白腐菌对PCDDs和PCDFs均有较强的降解能力。本文首次报道了微生物对高氯化PCDDs和PCDFs的降解作用。
A method for the degradation of dioxins by white rot fungi was developed. Degradation of a mixture of 10 kinds of tetra- to octachlorodibenzo-p-dioxins (polychlorinated dibenzo-p-dioxins [PCDDs]) and tetra- to octachlorodibenzofurans (polychlorinated dibenzofurans [PCDFs]), which were chlorinated at 2-, 3-, 7-, and 8-positions of the molecules, by the white rot fungus Phanerochaete sordida YK-624 was studied in a stationary low-nitrogen medium. The percent degradation values of PCDDs and PCDFs were approximately 40 (tetra-chloro-) to 76% (hexachloro-) and 45 (tetrachloro-) to 70% (hexachloro-), respectively. Metabolites of 2,3,7,8-tetra- and octaCDD formed by P. sordida YK-624 included 4,5-dichlorocatechol and tetrachlorocatechol, respectively. These results suggest that white rot fungus is able to substantially degrade both PCDDs and PCDFs. This is the first report of the degradation of highly chlorinated PCDDs and PCDFs by a microorganism.
DOI：
10.1016/s0021-9258(19)75982-1
发表时间：
1986-12
期刊：
The Journal of biological chemistry
影响因子：
--
作者：
K. Hammel;B. Kalyanaraman;T. Kirk
通讯作者：
K. Hammel;B. Kalyanaraman;T. Kirk