Table 1 Bacterial and fungal α-diversity indices in rhizosphere and non-rhizosphere soil.

From: Different responses of rhizosphere and non-rhizosphere soil microbial communities to consecutive Piper nigrum L. monoculture

Microbial community

Soil sample

Consecutive monoculturing spans

Coverage

Chao 1

Shannon

Bacteria

Rhizosphere Soil

12 y

96.49 ± 0.24 a

4930.32 ± 421.96 ab

6.72 ± 0.40 a

18 y

96.36 ± 0.22 a

5248.75 ± 349.74 a

7.09 ± 0.16 a

28 y

97.10 ± 1.30 a

4756.31 ± 269.36 abc

6.82 ± 0.22 a

38 y

96.65 ± 0.21 a

4676.70 ± 376.47 abc

6.59 ± 0.26 a

Non-rhizosphere Soil

12 y

97.33 ± 0.93 a

3854.48 ± 255.05 cd

5.92 ± 0.95 a

18 y

96.55 ± 0.50 a

4143.82 ± 184.53 bcd

6.63 ± 0.39 a

28 y

98.01 ± 0.93 a

3502.97 ± 482.39 d

6.22 ± 0.08 a

38 y

97.49 ± 0.45 a

3620.26 ± 360.17 d

6.06 ± 0.34 a

Fungi

Rhizosphere Soil

12 y

97.43 ± 0.04 a

904.09 ± 23.05 a

4.46 ± 0.05 a

18 y

97.46 ± 0.41 a

876.56 ± 31.13 a

4.20 ± 0.25 abc

28 y

97.59 ± 0.67 a

854.45 ± 14.16 ab

4.15 ± 0.09 abc

38 y

97.65 ± 0.04 a

822.09 ± 22.37 abc

3.88 ± 0.07 c

Non-rhizosphere Soil

12 y

97.95 ± 0.53 a

764.67 ± 17.44 bcd

4.15 ± 0.12 abc

18 y

97.54 ± 0.08 a

887.06 ± 3.00 a

4.29 ± 0.17 ab

28 y

98.11 ± 0.25 a

689.43 ± 80.69 d

3.96 ± 0.12 bc

38 y

97.98 ± 0.68 a

732.71 ± 26.32 cd

4.07 ± 0.06 bc

  1. “12y”, “18y”, “28y” and “38y” refers to the four consecutive monoculture spans of 12, 18, 28 and 38 years, respectively. Values are presented as means ± standard deviation (n = 3). Means followed by the same letter for a given factor are not significantly different (P < 0.05, Turkey’s HSD test).