glnD and mviN Are Genes of an Essential Operon in Sinorhizobium meliloti

AUTOR(ES)

Rudnick, Paul A.

FONTE

American Society for Microbiology

RESUMO

To evaluate the role of uridylyl-transferase, the Sinorhizobium meliloti glnD gene was isolated by heterologous complementation in Azotobacter vinelandii. The glnD gene is cotranscribed with a gene homologous to Salmonella mviN. glnD1::Ω or mviN1::Ω mutants could not be isolated by a powerful sucrose counterselection procedure unless a complementing cosmid was provided, indicating that glnD and mviN are members of an indispensable operon in S. meliloti.

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