1952
DOI: 10.1128/jb.64.6.829-836.1952
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Degenerative Processes in a Strain of Clostridium Butylicum

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Cited by 62 publications
(29 citation statements)
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“…Degeneration typically is observed with repeated use of inocula derived from exponential phase cells [16,17,19,23]. These clostridia also degenerate in continuous culture [13,18,20,[24][25][26].…”
Section: Degeneration In Liquid Mediamentioning
confidence: 99%
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“…Degeneration typically is observed with repeated use of inocula derived from exponential phase cells [16,17,19,23]. These clostridia also degenerate in continuous culture [13,18,20,[24][25][26].…”
Section: Degeneration In Liquid Mediamentioning
confidence: 99%
“…As few studies reported in the literature used the same conditions of growth or inoculum transfer, it is not easy to dissect the effects of various environmental factors and culture conditions that lead to strain degeneration. It is clear that degenerate cells outgrow non-degenerate cells, but they do not grow more rapidly [17]. The growth advantage of degenerate cells may be due to continued cell division of uncommitted cells, while the non-degenerate cells stop dividing and start to differentiate.…”
Section: Degeneration In Liquid Mediamentioning
confidence: 99%
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“…Past efforts to harvest clean spores from such a mixture have been unsuccessful (Collier 1957;Zoha and Sadoff 1958). Another challenge to spore production is due to a process known as strain degeneration (Kutzenok and Aschner 1952;Kashket and Cao 1995), where loss of spore production occurs after repeated subculturing or during growth in continuous culture (Kashket and Cao 1995). Degeneration appears to be facilitated by excessive acidification of cultures during exponential growth, and by a global regulatory gene responsible for strain degeneration (Kashket and Cao 1995).…”
Section: Introductionmentioning
confidence: 99%
“…Clostridium butylicum [1,2] or Clostridium beijerinckii [3]. 2-Propanol may also be formed from acetone for disposal of reducing equivalents [4].…”
Section: Introductionmentioning
confidence: 99%