title: Effect of inoculation with Penicillium expansum on the microbial community and maturity of compost.
abstract: Compost prepared from wheat straw and cattle/chicken mature was inoculated with the lignocellulolytic fungus, Penicillium expansum. Compared to uninoculated compost, the inoculated compost exhibited a 150% higher germination index, more than 1.2 g kg(-1)-dw of changes in NH(4)(+)-N concentrations, a ca. 12.0% higher humus content and a lignocellulose degradation that proceeded 57.5% faster. Culture-based determinations of microbial populations demonstrated that aerobic heterotrophic bacteria and fungi were about 1-2 orders of magnitude higher in inoculated than in uninoculated compost. The number of ammonifying, ammonium-oxidizing, nitrite-oxidizing, denitrifying bacteria and cellulose-decomposing bacteria was 6.1-9.0 log(10) CFU g(-1)-dw, 1.2-4.3 log(10) MPN g(-1)-dw, 3.5-6.8 log(10) MPN g(-1)-dw, 3.58-4.34 log(10) MPN g(-1)-dw, 1.4-3.8 log(10)MPN g(-1)-dw, and 4.2-8.8 log(10) CFU g(-1)-dw higher in the compost inoculated with P. expansum.
authors: Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
authors: Hong-yuan
authors: HY
authors: Wang
authors: Bing-quan
authors: BQ
authors: Fan
authors: Qing-xiu
authors: QX
authors: Hu
authors: Zhong-wei
authors: ZW
authors: Yin
mesh_terms: D000332:Aerobiosis; D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D001937:Brassica / Q000254:growth & development; D002417:Cattle; D018525:Germination / Q000502:physiology; D052836:Heterotrophic Processes / Q000502:physiology; D007287:Inorganic Chemicals / Q000032:analysis; D009584:Nitrogen / Q000032:analysis; D010407:Penicillium / Q000378:metabolism*; D012987:Soil / Q000032:analysis*; D012988:Soil Microbiology; D013696:Temperature; D014866:Waste Products / Q000032:analysis
chemical_list: D007287:Inorganic Chemicals; D012987:Soil; D014866:Waste Products; D009584:Nitrogen