Spent steamed compost, phase II compost, and dust emanating from spent compost during dumping of stationary-bed mushroom houses were examined bacteriologically. The total count for spent compost was 16 X 10(8) microorganisms per g. The total count for dust was 333 microorganisms per liter of air. Actinomycetes belonging to the genus Streptomyces often constituted 90% or more of isolates from dust, whereas mold spores constituted approximately 5%. Dust weight averaged 3.4 mg/liter of air and contained approximately 33% inanimate and 67% animate (microbial) particles. Spent compost and casing contained approximately 60% moisture; the average pH of compost was 6.93, and that of casing was 7.70. Ouchterlony precipitin results with antisera from workers afflicted with either farmer's or mushroom worker's lung were positive for Bacillus licheniformis, Micropolyspora faeni, Thermoactinomyces vulgaris, Aspergillus fumigatus, Humicola grisea var. thermoidea, spent compost, and phase II compost. Their usefulness in determining the etiology of this and related forms of allergic alveolitis is questioned and discussed. The relationship of dust particle size; microbial species, prevalence and antigenicity; and compost antigenicity to the etiology of mushroom worker's lung is discussed. The microbial ecology of mushroom compost and moldy hay associated with farmer's lung is compared.
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机译:用细菌学检查了蒸熟的堆肥,二期堆肥以及倾倒固定床蘑菇房期间废堆肥产生的粉尘。废堆肥的总计数为每克16 X 10(8)个微生物。每升空气中的灰尘总数为333个微生物。属于链霉菌属的放线菌通常构成灰尘分离物的90%或更多,而霉菌孢子约占5%。平均粉尘重量为3.4 mg / L空气,其中包含约33%的无生命和67%的有生命(微生物)颗粒。用完的堆肥和肠衣中约含60%的水分。堆肥的平均pH为6.93,肠衣的平均pH为7.70。患有农民或蘑菇工人肺部疾病的工人血清抗血清血清沉淀的结果对地衣芽孢杆菌,法氏多孢菌,寻常嗜热放线菌,烟曲霉,稻瘟病菌均呈阳性反应。 Thermoidea,废堆肥和II期堆肥。人们质疑并讨论了它们在确定这种和相关形式的过敏性肺炎的病因学方面的有用性。尘埃粒径的关系;微生物种类,患病率和抗原性;并讨论了堆肥对蘑菇工人肺部病因的抗原性。比较了蘑菇堆肥和发霉的干草与农民肺部的微生物生态。
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