TABLE 1.

Alpha diversity of soil bacterial community as revealed by DGGE and high-throughput sequencing.

	DGGE		High-throughput sequencing
	Taxa number	Shannon	ACE	Shannon
PNSoil	34 ± 1 b	3.49 ± 0.04 cd	919 ± 21 b	7.19 ± 0.03 ab
SGSoil	36 ± 1 b	3.54 ± 0.01 d	903 ± 24 b	7.04 ± 0.05 ab
CKSoil	33 ± 1 b	3.46 ± 0.02 cd	968 ± 48 b	7.44 ± 0.04 b
PNSand	32 ± 0 a	3.42 ± 0.01 c	617 ± 35 a	6.44 ± 0.60 a
SGSand	28 ± 1 a	3.26 ± 0.03 b	694 ± 50 a	6.48 ± 0.27 a
CKSand	24 ± 1 a	3.12 ± 0.03 b	635 ± 52 a	6.34 ± 0.12 a
Matrix (M)	<0.001	<0.001	< 0.001	0.004
Plant (P)	<0.001	<0.001	>0.05	>0.05
Interaction (M × P)	0.001	0.002	>0.05	>0.05

Each value represents the average ± standard error within group. Different lowercase letters indicate significant difference (Tukey HSD post hoc test, P < 0.05) among the six groups in each column. The P values indicated by Two-way ANOVA show the influence of matrix, plant and their interaction on alpha diversity, and the significant influence (P < 0.05) are highlighted by bold font. PN, bahiagrass; SG, stylo; CK, the unplanted control.