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Copyright of Mycosystema is the property of Mycosystema Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The characteristics and development process of white-rot fungi are introduced, and the present status of wastewater produced in various typical industries are expounded. White-rot fungi are increasingly used in bioremediation due to their unique and efficient lignin-degrading ability. The degradation mechanisms of organic pollutants by white-rot fungi are introduced in detail. The treatment for certain typical industrial wastewaters by white-rot fungi are reviewed, which contained printing and dyeing, papermaking, pesticide, and medical wastewater treatment. Furthermore, some problems and directions of future research in organic wastewater treatment by white-rot fungi are documented. [ABSTRACT FROM AUTHOR]

The experiment was to evaluate the nutritional value of hullessbarley straw by white-rot fungi fermentation using Cornell Net Carbohydrate-Protein System (CNCPS). Three white rot fungi (Pleurotus sajor-caju, Pleurotus ostreatus, Pleurotus rhodophyllus Bres) were selected to ferment highland barley straw, and CK group was not inoculated with strains on highland barley straw. After 21 d of solid-state fermentation, various nutritional indicators in fermentation substrate were measured to evaluate the fermentation effect. The results showed that the content of CP, EE, SP and NPN of P. sajor-caju group were extremely higher than other groups (P<0.01), the content of NDF, ADF, ADL, NDFIP and ADFIP were extremely lower than other groups (P<0.01). The content of PA, PB2 and PB3 of P. sajor-caju group and P. ostreatus group were extremely higher than CK group and P. rhodophyllus Bres group (P<0.01), the content of PB1 of P. sajor-caju group and P. rhodophyllus Bres group was extremely higher than CK group and P. ostreatus group (P<0.01), and the content of PC of P. sajor-caju group was extremely lower than other groups (P<0.01). The content of CHO of P. rhodophyllus Bres group was extremely higher than other groups (P<0.01), the content of CA, CB1, CB2 and CNSC of P. sajor-caju were extremely higher than other groups (P<0.01), and content of CC was extremely lower than other groups (P<0.01). The experiment indicates that the white rot fungi fermentation can effectively improve the nutrition value of hullessbarley straw, and the best fermented impact is achieved in the Pleurotus sajor-caju treatment. [ABSTRACT FROM AUTHOR]

Copyright of Mycosystema is the property of Mycosystema Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Mycosystema is the property of Mycosystema Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Collecting rotting wood of spruce in Xinjiang, such as Nam Shan, aletai Kuerdening,for research meteaial. Lignin degrading fungi from infected spruce were extracted and separated, its taxonomic status were determined, and the lignin degradation rate were tested. Using potato medium containing 0.04% guaiacol for screening, containing 1% aniline blue for rescreening, then four lignin degrading ability of the fungi were dicovered by electronic microscopy and weighing method. The resulting lignin degradation rate of 2-A,1-G,2-B,3-E were 5. 82%,6. 23%,3. 80%,5. 14%, respectively. Using the measured 18 S r DNA sequence characterization, 2-A in the taxonomy belongs to Botryosphaeriales, botryosphaeriaceae, Microdiplodia sp.; 1-G belongs to the Fusarium sp. [ABSTRACT FROM AUTHOR]

Azo dyes are widely used in textile, paper and packing industries, and have become one of the research hot spots in dye wastewater treatment because of their carcinogenicity, teratogenic mutagenicity, stable structure and degradation difficulty. In this study, the biodecolorization of acid orange 7 (AO7), an azo dye, by different white rot fungi was investigated, and the effect of different conditions on the decolorization rate of the dye was analyzed. At the same time, the degradation liquor was analyzed and the phytotoxicity experiment was performed to deduce the possible degradation pathway of AO7 and assess the toxicity of its degradation products. The results showed that the decolorization rate reached 93.46% in 24 h at pH 4.5, 28 ℃ by Pleurotus eryngii and Trametes versicolor when AO7 concentration was 100 mg/L. The biodegradation pathway of AO7 was initiated by the cleavage of the azo bond of AO7, generating p-aminobenzenesulfonic acid and 1-amino-2-naphthol. Subsequently, the sulfonic acid group of p-aminobenzene sulfonic acid was removed to generate hydroquinone. Moreover, the 1-amino-2-naphthol was de-ringed to generate phthalic acid and p-hydroxybenzaldehyde, and then further degraded into benzoic acid. Finally, hydroquinone and benzoic acid may be further oxidized into other small molecules, carbon dioxide and water. Phytotoxicity experiment showed that the toxicity of AO7 could be reduced by P . eryngii and T . versicolor .

The method and the model of biotransformation process of baicalin by white-rot fungi were studied. The dynamic cells and static cells were used to transform baicalin. After ultra-sonic treatment on cultivation medium, the product was identified as the baicalein by HPLC. As a result, the transformation enzyme is supposed to be induced enzyme and endoenzyme at the same time. The optimal authire conditions are as follows: the reaction time is 96h,pH is 5. 5, inoculation amount is 4 slices of white-rot fungi whose diameter is 10mm. [ABSTRACT FROM AUTHOR]

To study the effects of biological pretreatment on straw composting, the maize straw treated by white-rot fungi and those not treated, were compared respectively with kitchen waste by evaluating the temperature, moisture content, pH, organic matter content and seed germination index(GI) of the pile to evaluate effect and maturity of the composting in the process of 30d's composting. The results shows, the file A pretreated reached 55°C earlier than file B unpretreated; pretreated pile A moisture content decreased rapidly and organic matter content decreased faster which shorten composting cycle; two piles final pH neared neutral; The seed germina-tion rate of the file A pretreated was 99%,which was 1% higher than the pile B unpretreated. The composting rate and degree of the file A is better than file B. Biological pretreatment can accelerate the composting process and effectively shorten the composting cycle. [ABSTRACT FROM AUTHOR]