Table 2. Variability of the culturable endophytic population of Wild Poplar 4.

Sample	Tissue	CFU on MG/L	CFU on NL-CCM	CFU on Nfb
1	Root	2 x 107	1.7 x 107	8.2 x 106
2	Root	3.4 x 107	TNTC	2.0 x 107
3	Stem	5.7 x 106	1.3 x 107	2.9 x 106
4	Stem	4.0 x 105	7.5 x 105	4.5 x 105
5	Stem	3.0 x 105	7.0 x 105	3.5 x 105
6	Stem	2.9 x 106	5.5 x 105	1.1 x 106
7	Leaf	6.4 x 106	4.3 x 106	1.1 x 106
8	Leaf	1.5 x 107	1.7 x 107	5.7 x 106
9	Leaf	1.0 x 106	7.0 x 105	2.0 x 105
10	Leaf	TNTC	1.4 x 106	4.5 x 105