Table 2. PerMANOVA analyses of microbial communities t-RFLP profiles : influence of extraction method and soil type.

	Bacteria		Archaea		Fungi
	F	R2	F	R2	F	R2
Extraction method	11.23	0.03*	0.76	0.006	27.29	0.34*
Soil type	108.63	0.78*	54.50	0.84*	11.33	0.29*
Interaction	4.72	0.08*	1.09	0.03	3.62	0.18*

PerMANOVA analysis showing the influence of extraction method and soil type in explaining overall variance in microbial communities.

^*denotes significance (p<0.01).