TABLE 1.
Colonization of RAS and RT of sunflower by Rhizobium sp. strain YAS34 in two independent experiments
| Part colonized | Expt no.c | Total culturable bacteriaa(n = 6)
|
Rhizobium sp. (%)b(n = 3)
|
||
|---|---|---|---|---|---|
| Control | Inoculated | Control | Inoculated | ||
| RAS | 1 | 8.1 ± 0.3 | 7.9 ± 0.5 | 3 ± 1 | 23 ± 5 |
| 2 | 7.8 ± 0.3 | 7.6 ± 0.3 | 5 ± 1 | 38 ± 3 | |
| Roots | 1 | 9.7 ± 0.3 | 9.5 ± 0.5 | 8 ± 4 | 31 ± 7 |
| 2 | 8.3 ± 0.6 | 8.3 ± 0.5 | 8 ± 1 | 54 ± 5 | |
a
Counted on nutrient agar medium (in log CFU per gram dm); 6 out of 20 plantlets were analyzed (n = 6).
b
Isolates with the same ERIC-PCR profile as Rhizobium sp. strain YAS34 (in percentage of total culturable bacteria counted on RCV-glucose medium); 3 out of the 20 plantlets were analyzed (n = 3).
c
1 = 16-day-old plantlets, without nitrogen supply; 2 = 15-day-old plantlets, with nitrogen supply.