Occurrence of Azospirillum in Polish soils

N2-fixing Azospirillum strains were isolated from garden soils and roots of wheat, rye, barley, oat and maize. The strains most active in C2H2 reduction were those isolated from garden soils, wheat and barley roots which produced 304 to 351 nmoles of C2H4 X h-1 per culture. The results demonstrate the presence of Azospirillum in Polish soils.