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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