Изследване влиянието нa модифициран с Cu, Zn и Mn зеолит върху биотрансформацията на лигнит
Ключови думи :
lignite, humic substances, Trichoderma harzianum, hypocotyls testАбстракт
Abiotransformation оf humic substances from coal was carried out during а solid-state fermentation of lignite from Stanyantsi mine, Bulgaria, inoculated with Trichoderma harzianum, in the presence of natural clinoptilolite, saturated with increasing doses of Cu, Zn and Mn.
The level of extractable humic substances reaches that typical for leonardite (80% of the total organic C). The content of fulvic acids in the hydrolysate is increased up to 4 times compared to the raw material. Cu ions, which are toxic to Trichoderma sp. at 50 ррm, can be introduced into the substrate for fermentation in а tenfold greater amount, if used together with the zeolites. The presence of Zn and Мn ions during the process of depolymerization supports lignite biotransformation. This results in obtaining products with a high physiological activity, affecting plant phytochrome system.
Литература (библиография)
Гущеров, Г, П. Андонов, Ц. Тодоров, Л. Колинков, M. Гинчева-Старчева. 1977. Практикум по микробиология и вирусология. Наука и изкуство, C., с. 393
Хазиев, Ф. Х. 1976. Ферментативная активность почвы. Наука, M., с. 179
Angelova, G., K. Chakalov, Т. Popova аnd V. Savov. 2009. Influence of Fe, Cu, Mn, Zn, Co chelators оn the biotransformation of humic substances of lignite. In Proc.: XI Anniversary Scintific Conference with International Attenddance “120 Years of Academic Education in Biology. 45 Years Faculty of Biology —“Biology-Tradition аnd Challenges”, May 27-29, 2009., Sofia, Bulgaria BT, р .47
Fakoussa, R. M. 1994. The influence of different chelators on the solubilization/liquefaction оf different pretreated and natural lignites. Fuel Process. Technol., 40: 183-192
Fakoussa, R. M. аnd P. J. Frost. 1999. In vivo-coal decolorization of coal-derived humic acids by laccase-excreting fungus Trametes versicolor. Appl. Microbiol. Biotechnol., 52: 60-65
Fakoussa, R. М. аnd M. Hofrichter. 1999. Minireview: microbiology nd biotechnology оf coal degradation. Appl. Microbiol. Biotechnol., 52: 25-40
Kononova, M. М. 1966. Soil Organic Matter. (2е). Pergamon, N.Y., p. 544
Kim, S. H., Shinkle, J. R., Roux, S. J. 1989. Phytochrome induces changes in the immunodetectable level of a wall peroxidase that precede growth changes in maize seedlings. Proc Natl Acad Sci USA. 1989 Dec;86: 9866 70. http://www.ncbi.nlm.nih. gov/pubmed/11537413
Zin-Huang Liu, Ho-Yih Liu аnd Hwei-Yi Wang. 1996 Effect of light оn endogenous indole—3—acetic acid, peroxidase аnd indole-3-acetic acid oxidase in soybeen hypocotyls. Bot. Bull. Acad. Sin., 37: 113-119, Taiwan
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