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Table 1 Phenanthrene remained concentration in soil, phenanthrene remained ratio, estimates of bacterial abundance and diversity indices in different treatments

From: Earthworms and rice straw enhanced soil bacterial diversity and promoted the degradation of phenanthrene

Treatment PHE concentration remained PHE remained ratio r Seq_sequences OTUs_ num Shannon index
P 29.52 ± 0.35 0.59 ± 0.06 101,650 9429 5.8 ± 0.7
PS 17.76 ± 0.85* 0.35 ± 0.04* 130,882 9695* 6.12 ± 0.8
PW 9.77 ± 0.46*** 0.19 ± 0.08*** 142,878 10,906** 6.38 ± 0.7*
PSW 8.46 ± 0.86*** 0.16 ± 0.09*** 143,078 11,906*** 6.45 ± 0.5*
  1. Data are the mean of three replicate ± SD and were compared by Duncan’s multiple range tests. Seq_num is the quality number of samples reads and OTU_num is the number of 16S rRNA sequences OTUs obtained by sample clustering and normalized PICRUSt. Different asterisks *, ** and *** in the same column (4 values) indicate significant difference at p < 0.05, p < 0.01 and p < 0.001, respectively