Table 3.

Statistically significant differences (n = 8) based on permutation based nested ANOVA (PERMANOVA) between control and humidified plots, between two study years (time), and year and humidification interactions (Time^*Treatment) in whole bacterial community, the three most abundant phyla and pMENs modules (marked with capital letters) structure detected in bulk soils and rhizospheres.

Soil comp.	Community type/pMEN module		PERMANOVA
			Time	Treatment	Time*Treatment
Bulk soil	Whole		p < 0.001	p < 0.01	ns
	Proteobacteria		p < 0.001	p < 0.001	ns
	Actinobacteria		p < 0.001	P < 0.001	ns
	Acidobacteria		p < 0.01	p < 0.05	ns
	pMEN	A	p < 0.05	ns	ns
		B	p < 0.001	p < 0.001	p < 0.05
		C	p < 0.05	ns	ns
		D	p < 0.05	ns	ns
		G	p < 0.001	p < 0.01	p < 0.01
		H	p < 0.001	ns	ns
		I	p < 0.05	ns	ns
Rhizosphere	Whole		p < 0.001	p < 0.001	ns
	Proteobacteria		p < 0.001	p < 0.001	ns
	Actinobacteria		p < 0.01	p < 0.01	ns
	Acidobacteria		p < 0.01	ns	ns
	pMEN	J	p < 0.001	ns	ns
		K	p < 0.01	p < 0.01	ns
		L	p < 0.001	p < 0.05	ns
		N	p < 0.05	ns	ns
		O	p < 0.001	p < 0.05	ns
		P	p < 0.001	ns	ns
		Q	p < 0.01	ns	p < 0.05

ns, not significant.