Predominant Catalase-negative Soil Bacteria. III. Agromyces, gen. n., Microorganisms Intermediary to Actinomyces and Nocardia1

AUTOR(ES)

Gledhill, William E.

RESUMO

The occurrence of filamentous, branching, catalase-negative bacteria as a numerically predominant microflora of various soils was demonstrated by using a dilution frequency isolation procedure. The major characteristics of these organisms were those of the order Actinomycetales. However, they could not be placed in any of the present genera of this order and, therefore, a new genus, Agromyces, was proposed for these organisms. This genus includes catalase-negative, nutritionally-fastidious microorganisms whose cells produce a true branching mycelium that fragments into coccoid and diphtheroid forms. Also, they have an oxidative metabolism, are microaerophilic to aerobic, and contain neither diaminopimelic acid nor lysine as major constituents of the cell wall glycopeptide. The type species would be Agromyces ramosus, gen. n., sp. n. The possible importance of these organisms in clarifying certain phylogenetic relationships of the Actinomycetales is discussed.

Documentos Relacionados

• Predominant Catalase-negative Soil Bacteria. II. Occurrence and Characterization of Actinomyces humiferus, sp. N1
• Predominant Catalase-negative Soil Bacteria. I. Streptococcal Population Indigenous to Soil1
• Plating Isolation of Various Catalase-Negative Microorganisms from Soil1
• Catalase-negative Escherichia coli isolated from blood.
• Numerical Taxonomy of Catalase-negative Cocci Isolated from Frozen Vegetables1