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Title: Production and effect of killer toxin by Saccharomyces cerevisiae and Pichia kluyveri on sensitive yeasts and fungal pathogens
Authors: Dabhole, Madhusudan P
Joishy, K N
Keywords: killer yeast
Saccharomyces cerevisiae
Pichia kluyveri
Dekkera anomala
killer toxin
killer phenomenon
Issue Date: Apr-2005
Publisher: CSIR
IPC CodeInt.Cl.7 A01N63/04; C12R1:865,1:84
Abstract:  Killer yeasts from flowers of Indian medicinal plants were isolated and the effect of their killer toxin was determined on sensitive yeast cells as well as fungal pathogens. The toxin of Saccharomyces cerevisiae and Pichia kluyveri inhibited Dekkera anomala accumulating methylene blue cells on Yeast Extract Peptone Dextrose agar (pH 4.2) at 21°C. There was no inhibition of growth or competition between the yeast cells in the mixed population of S. cerevisiae isolated from Acalypha indica. S. cerevisiae and P. kluyveri were found to tolerate 50% and 40% glucose, while D. anomala tolerated 40% glucose. Both S. cerevisiae and P. kluyveri did not inhibit the growth of Aspergillus niger, Candida albicans and Fusarium spp.
Page(s): 290-292
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Source:IJBT Vol.04(2) [April 2005]

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