Effect of habitat conditions on proteinase and glycosidase activities in the gut microbiota of crucian carp in a wide range of pH

Effect of habitat conditions on proteinase and glycosidase activities in the gut microbiota of... Significant differences in pH dependence of proteolytic and amylolytic enzyme activities in the gut microbiota between crucian carps from different habitats (the Dniester River and Kuchurgan Reservoir) have been revealed for the first time. The proteolytic activity in fish from these water bodies reaches a peak at pH values varying from 7 to 10, while the peak of amylolytic activity is consistently observed at pH 7.0. Both proteolytic and amylolytic activities are higher in fish from the Kuchurgan Reservoir (characterized by increased trophicity and high abundance of bacterioplankton) than in fish from the Dniester. For comparison, the effect of pH on proteinase and glycosidase activities in the gut mucosa and chyme of the same fish has been studied. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Effect of habitat conditions on proteinase and glycosidase activities in the gut microbiota of crucian carp in a wide range of pH

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Ecology; Environment, general
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413614040079
Publisher site
See Article on Publisher Site

Abstract

Significant differences in pH dependence of proteolytic and amylolytic enzyme activities in the gut microbiota between crucian carps from different habitats (the Dniester River and Kuchurgan Reservoir) have been revealed for the first time. The proteolytic activity in fish from these water bodies reaches a peak at pH values varying from 7 to 10, while the peak of amylolytic activity is consistently observed at pH 7.0. Both proteolytic and amylolytic activities are higher in fish from the Kuchurgan Reservoir (characterized by increased trophicity and high abundance of bacterioplankton) than in fish from the Dniester. For comparison, the effect of pH on proteinase and glycosidase activities in the gut mucosa and chyme of the same fish has been studied.

Journal

Russian Journal of EcologySpringer Journals

Published: Jul 15, 2014

References

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