Summary
A rod-shaped, morphologically stable coryneform soil isolate, strain 9b, gives rise to filamentous and nocardioform mycelial mutants when submitted to mutagenic treatment. Stepwise selection for increasing average length of the rods appears to be necessary to obtain the mycelial form. The mycelial mutant reproduces by fragmentation of the mycelium in the stationary phase of growth and the rough variant exhibits aerial hyphae.
References
Anderson, E. H.: Growth requirements of virus-resistant mutants of E. coli. Proc. nat. Acad. Sci. (Wash.) 32, 120–126 (1946).
Goodfellow, M.: Numerical taxonomy of some nocardioform bacteria. J. gen. Microbiol. 69, 33–80 (1971).
Jensen, H. L.: The coryneform bacteria. Ann. Rev. Microbiol. 6, 77–88 (1952).
Lechevalier, H. A., Lechevalier, M. P.: Biology of Actinomycetes. Ann. Rev. Microbiol. 21, 71–100 (1967).
Nečásek, J., Palečková, F., Tesař, A.: Monosporic isolation of fungi (Tschech.). Preslia 26, 105 (1954).
Runyon, E. H.: Aerial hyphae of Mycobacterium xenopei. J. Bact. 95, 734–735 (1968).
Van de Putte, P., van Dillewijn, J., Rörsch, A.: The selection of mutants of Escherichia coli with impaired cell division at elevated temperatures. Mut. Res. 1, 121–128 (1964).
Veldkamp, H.: Saprophytic coryneform bacteria. Ann. Rev. Microbiol. 24, 209–240 (1970).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jičínská, E. Nocardia-like mutants of a soil coryneform bacterium. Archiv. Mikrobiol. 89, 269–272 (1973). https://doi.org/10.1007/BF00422207
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00422207