Table 3. PerMANOVA analyses of microbial communities t-RFLP profiles : effect of soil type.

	Bacteria		Archaea		Fungi
	F	R2	F	R2	F	R2
ISO	56.39	0.96*	50.62	0.95*	2.09	0.46*
GnS-GII	37.38	0.94*	34.29	0.93*	8.41	0.77*
ISOm	31.34	0.93*	9.48	0.79*	9.29	0.79*

PerMANOVA analysis showing the effect of soil type on microbial communities assessed by the three extraction methods.

^*denotes significance (p<0.01).