期刊
BIORESOURCE TECHNOLOGY
卷 211, 期 -, 页码 610-617出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.03.141
关键词
Composting; Phosphate-solubilizing bacteria (PSB); Organic wastes; Denaturing gradient gel electrophoresis (DGGE); Redundancy analysis (RDA)
资金
- National Natural Science Foundation of China [51378097]
- National Key Technology RD Program [2012BAJ21B02-02]
This study was conducted to assess the abundance, incidence and diversity of the culturable phosphate-solubilizing bacteria (PSB) community during different organic wastes composting. The key PSB affecting different phosphorus (P) fractions and their relationship with environmental variables were analyzed by redundancy analysis (RDA). The results showed that there were distinct differences in amounts, incidence and community composition of PSB for the composts from different sources. Regression analysis demonstrated significant corrections between the density and incidence of PSB and pH, temperature, OM and DOC/DON. Most of culturable PSB showed high percentages of identity with the phyla of Firmicutes and Proteobacteria. There were thirteen key PSB correlated closely (p < 0.05) with different P fractions variation. Conclusively, we suggested a process control method to regulate the distribution of P fractions during composting based on the relationship between the key PSB and P fractions as well as environmental parameters. (C) 2016 Elsevier Ltd. All rights reserved.
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