Journal
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Volume 27, Issue 10, Pages 2251-2259Publisher
SPRINGER
DOI: 10.1007/s11274-011-0688-4
Keywords
Actinomycetales; Soil amendment; MSW compost; Farmyard manure; Hydrolytic activities
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Funding
- Tunisian State Secretariat of Scientific Research and Technology
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The main objective of this investigation was to study the enzymatic activities of Actinomycetales strains isolated from an agricultural soil amended with different amounts of municipal solid waste compost (MSWC) or farmyard manure (FM). For this purpose, the hydrolytic activities of carboxymethyl cellulase, xylanase, pectinase, amylase, chitinase and protease were tested for 75 isolates of Sterptomyces, Amycolatopsis and Nocardioides from different sources (unamended soil, amended soil with FM or MSWC, FM and MSWC) at temperature ranging between 30 and 50A degrees C. It was shown that the highest rate of enzymes producer's strains was registered at 30A degrees C, and decreased gradually to annul at 50A degrees C, with the exception of the MSWC strains origin. It was also shown that the percentage of strains producers of enzymes isolated from soil amended with MSWC appeared higher than the one registered for those isolated from control and amended with FM soils. Application of MSWC increases the number of enzymes producer-actinomycetes in the soil and then it improves its fertility.
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