Alfalfa nodulation by Sinorhizobium fredii does not require sulfated Nod-factors

1. Noreen, S.
2. Schlaman, H.R.M.
3. Bellogín, R.A.
4. Buendía-Clavería, A.M.
5. Espuny, M.R.
6. Harteveld, M.
7. Medina, C.
8. Ollero, F.J.
9. Olsthoorn, M.M.A.
10. Soria-Diaz, M.E.
11. Spaink, H.P.
12. Temprano, F.
13. Thomas-Oates, J.
14. Vinardell, J.M.
15. Yang, S.S.
16. Zhang, H.
17. Ruiz-Sainz, J.E.