title: A regulating method for the distribution of phosphorus fractions based on environmental parameters related to the key phosphate-solubilizing bacteria during composting.
abstract: 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.
authors.affiliation: College of Life Science, Northeast Agricultural University, Harbin 150030, China.
authors.forename: Yuquan
authors.initials: Y
authors.lastname: Wei
authors.affiliation: College of Life Science, Northeast Agricultural University, Harbin 150030, China. Electronic address: weizimin@neau.edu.cn.
authors.forename: Zimin
authors.initials: Z
authors.lastname: Wei
authors.affiliation: College of Life Science, Northeast Agricultural University, Harbin 150030, China.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Cao
authors.affiliation: College of Life Science, Northeast Agricultural University, Harbin 150030, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Laboratory of Water Environmental System Engineering, Chinese Research Academy of Environmental Science, Beijing 100012, China.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Zhao
authors.affiliation: College of Life Science, Northeast Agricultural University, Harbin 150030, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Lu
authors.affiliation: College of Life Science, Northeast Agricultural University, Harbin 150030, China.
authors.forename: Xueqin
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Life Science, Northeast Agricultural University, Harbin 150030, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Zhang
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D010710:Phosphates / Q000032:analysis / Q000737:chemistry*; D010758:Phosphorus / Q000032:analysis / Q000737:chemistry*; D012987:Soil / Q000737:chemistry*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000737:chemistry
chemical_list: D010710:Phosphates; D012987:Soil; D012989:Soil Pollutants; D010758:Phosphorus
keywords: Composting; Denaturing gradient gel electrophoresis (DGGE); Organic wastes; Phosphate-solubilizing bacteria (PSB); Redundancy analysis (RDA)