Author:
Missous Ghalia,Thammavongs Bouachanh,Launay Géraldine,Guéguen Micheline,Dieuleveux Virginie,Panoff Jean-Michel
Abstract
Microscopic conformation, growth behaviour and freezing sensitivity of seven strains ofGeotrichum candidum, a ripening starter, were studied and compared according to their macroscopic morphotypes. It has been shown that the thallus forming units (TFU)×ml−1/OD600nmratio as a function of time is an interesting parameter to followG. candidumsporulation through the growth behaviour. Microscopic conformation, growth behaviour and freezing sensitivity are clearly strain specific and mostly related to their corresponding morphotypes “yeast”, “mould” or “intermediate”. The two “mould” strains that sporulate weakly (UCMA103, UCMA499) showed a low survival rate to freezing stress whereas the “yeast” strains expressed a significant resistance owing to the arthrospore abundance. Interestingly, one strain (UCMA96) which appeared on solid medium in accord with the “mould” morphotype respond similarly to freezing stress.
Publisher
Cambridge University Press (CUP)
Subject
Animal Science and Zoology,General Medicine,Food Science
Cited by
2 articles.
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