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Carbon catabolism in continuous cultures and bacteroids of Rhizobium leguminosarum MNF 3841
Journal article   Peer reviewed

Carbon catabolism in continuous cultures and bacteroids of Rhizobium leguminosarum MNF 3841

I.A. McKay, M.J. Dilworth and A.R. Glenn
Archives of Microbiology, Vol.152(6), pp.606-610
1989
DOI: https://doi.org/10.1007/BF00425495
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Abstract

Bacteroids of R. leguminosarum MNF3841 isolated from pea nodules using Percoll gradients had activities of TCA cycle enzymes up to 6-fold higher than those measured in free-living cells grown on fumarate or sucrose. Activities of sugar catabolic enzymes on the other hand were 2-14-fold lower in isolated bacteroids than in sucrose-grown free-living cells. In continuous culture, cells of strain MNF3841 grown on sucrose under Pi limitation had 2-3-fold higher activities of invertase, glucose-6-phosphate dehydrogenase, the Entner-Doudoroff enzymes and 6-phosphogluconate dehydrogenase, than cells grown on fumarate. With one exception O2 limited cultures had similar activities of the carbon catabolic enzymes to Pi-limited cultures grown in the same substrate. Glucose-6-phosphate dehydrogenase in O2-limited cells grown of fumarate was 50% lower than in Pi-limited cells. Co-utilization of fumarate and sucrose occurred with chemostat cultures supplied with both under a variety of conditions.

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#2 Zero Hunger

Source: InCites

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23 Record Views
21 Times Cited - Web of Science

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Citation topics
3 Agriculture, Environment & Ecology
3.97 Plant Pathology
3.97.892 Rhizobium-Legume Symbiosis
Web Of Science research areas
Microbiology
ESI research areas
Microbiology
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