Table 2 Effect of cultivation of Ricinus communis L. (uncultivated, non-rhizosphere and rhizosphere soil, and roots) and time (2, 4 or 6 months) on bacterial community composition at different taxonomic levels using a compositional approach a.

From: The root endophytic bacterial community of Ricinus communis L. resembles the seeds community more than the rhizosphere bacteria independent of soil water content

Factor

Wet soil

Dry soil

Extreme dry soil

F value

P value

F value

P value

F value

P value

Phyla

Cultivation

5.92

 < 0.001 b

7.23

 < 0.001

9.08

 < 0.001

Time

1.21

0.221

1.18

0.255

1.28

0.213

Cultivation*Time

1.54

0.074

1.61

0.083

1.61

0.052

All taxonomic groups assigned to the level of bacterial genus

Cultivation

2.99

 < 0.001

3.47

 < 0.001

3.64

 < 0.001

Time

1.24

0.114

1.31

0.104

1.33

0.104

Cultivation*Time

0.99

0.459

1.15

0.169

1.10

0.209

All operational taxonomic units (OTUs)

Cultivation

1.65

 < 0.001

1.66

 < 0.001

1.74

 < 0.001

Time

0.98

0.529

1.03

0.230

1.02

0.278

Cultivation*Time

1.00

0.444

0.99

0.528

1.02

0.303

  1. a perMANOVA analysis with sequence counts converted using the centred log-ratio transformation, i.e. aldex.clr argument (ALDEx2 package75) (aldex.clr(stephcounts, mc.samples = 128, denom = "all", verbose = FALSE, useMC = FALSE)). The adonis2 argument (Vegan package, Oksanen et al., 2019) was used for the perMANOVA analysis (#adonis2(stephclr ~ culivation*time, data = stephcode, permutations = 999, method = "euclidean"), b P values in bold indicate a significant effect.
Back to article page