Changes in growth and soil microbial communities in reciprocal grafting clones between Populus deltoides males and females exposed to water deficit conditions

Table 2 Pearson correlation coefficients between phospholipid fatty acids (PLFA) signatures and measured environmental variables. Each value is the mean ± SE (n = 24 plots). EOC Soil extractable C, NO₃⁻ nitrate, NH₄⁺ ammonium, LAP leucine aminopeptidase, NAG N-acetylglucosaminidase, SM soil moisture

	EOC	NH4⁺	NO₃⁻	Soil δ¹⁵ N	NAG	LAP	Soil pH	SM
Total bacteria	0.198	0.845	0.193	0.119	0.160	0.284	0.260	0.184
Fungi	0.640**	−0.823**	−0.670**	−0.539**	0.608**	0.671**	−0.682**	−0.449**
Gram-positive bacteria	−0.025	0.188	0.101	0.044	−0.143	0.017	0.243	0.202
Gram-negative bacteria	0.152	−0.134	−0.228	−0.254	0.136	0.222	−0.218	−0.029
AMF	0.633**	−0.811***	−0.709**	−0.667**	0.585**	0.637**	−0.673**	−0.547**
Actinobacteria	0.082	−0.113	−0.194	−0.147	0.123	−0.046	−0.058	0.164
Protozoal	−0.074	−0.041	0.084	0.264	0.128	−0.176	0.005	−0.039

ISSN: 1297-966X