Abstract
Mutational experiments were performed to produce morphological mutants fromAspergillus wentii Wehmer (IMI 17295) by UV and X-ray irradiation. Among the morphological mutants, five representative types were recognized. Marked variation existed in amylase activity between the morphological mutants and the wild type.
Similar content being viewed by others
References
Beadle C. W.: An inositolless mutant strain ofNeurospora and its use in bioassays.J. Biol. Chem. 156, 683 (1944).
Bernfeld P.: Enzymes of starch degradation and synthesis.Adv. Enzymol. 12, 379 (1951).
Chakrabarty S. L., Nandi P.: Studies on the morphological mutants ofStreptomyces strain Actt (460)Trans. Bose Res. Inst. 25, 29 (1962).
Hollaender A., Sansome E. R., Zimm E. Demerec M.: Quantitative irradiation experiments withN. crassa. II. UV irradiation.Am. J. Botany 32, 226 (1945).
Iguchi N.: Studies on Aspergilli. X. Changes of enzyme activities and induction of a mutant having higher proteolytic activities inA. sojae by induced mutations.J. Agr. Chem. Soc. Japan.29, 73 (1955).
Iizuka H., Yamaguchi T.: Studies onA. usamii mut.shirousamii and its industrial application.Trans. Bose Res. Inst. 25, 29 (1962).
Kornerup A., Wanscher J. H.: Methuen Hand Book of Colour (2nd ed.), Methuen and Co. Ltd., 11 New Fetter Lane, London E. C. 4, 1967.
Lewis B. A., Smith F.: Thin layer chromatography (Ed. E. Stahl), Georger Allen and Unwin Ltd., London, p. 807, 1969.
Misono T., Aikawa T., Hachiya Y., Mutai K.: Induced mutation inA. awamori var. fumeus AF-1. VII. Selection methods of strain of high amylase activity.Report Ferm. Res. Inst. 21, 39 (1962).
Sekine H., Nasuno S., Iguchi N.: Isolation of highly proteolytic mutants fromA. sojae.Agr. Biol. Chem. 33, 1477 (1969).
Vraná M., Delič V.: Improvement of amylolytic activity inAspergillus species 2 by the combined action of ethylenimine and UV light.Mikrobiologiya 5, 171 (1968).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Basu, S., Chakrabarty, S.L. Variability in amylase production among morphological mutants ofAspergillus wentii . Folia Microbiol 19, 199–202 (1974). https://doi.org/10.1007/BF02895018
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02895018