title: [Effects of Caenorhabditis elegans on Bacillus subtilis number and activity and soil nitrogen mineralization under different soil moisture conditions].
abstract: The study with gnotobiotic microcosm showed within the range of test soil moisture contents, the feeding activity of Caenorhabditis elegans on Bacillus subtilis promoted the latter' s proliferation, and enhanced soil respiration significantly. The increment of B. subtilis number varied with soil moisture content, and decreased in the order of 23% > 17% > 28% . The interaction of C. elegans and B. subtilis increased the contents of soil mineral N and NH4 + -N significantly, indicating that soil nitrogen mineralization was markedly promoted. A higher nitrogen mineralization rate was observed under 23% soil moisture content.
authors: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China. mmxf1008@yahoo.com.cn
authors: Xiao-fang
authors: XF
authors: Mao
authors: Feng
authors: F
authors: Hu
authors: Xiao-yun
authors: XY
authors: Chen
authors: Hui-xin
authors: HX
authors: Li
mesh_terms: D000818:Animals; D001412:Bacillus subtilis / Q000254:growth & development* / Q000378:metabolism; D017173:Caenorhabditis elegans / Q000502:physiology*; D015169:Colony Count, Microbial; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism; D012987:Soil / Q000032:analysis*; D012988:Soil Microbiology; D014867:Water / Q000032:analysis*
chemical_list: D012987:Soil; D014867:Water; D009584:Nitrogen