[The contribution of carbohydrases produced by symbiotic microflora to the digestive processes in cestodes and their host fishes].
The bacteria capable of producing the enzymes hydrolyzing carbohydrates of various degrees of complexity (from starch to sucrose) were found to be associated with the intestinal mucosa of fishes and tegument of cestodes. Presence of the bacteria displaying the sucrase activity is especially important for macroorganisms, as bacteriogenous glucose can be used by all members of the arising community. The greatest contribution to the hydrolysis of carbohydrates (both in host and parasite) is obviously made by those microorganisms which are more closely connected with the digestive-transport surfaces and are hardly removable from the intestines by peristalsis. The levels of total amylolytic activity of bacteriogenous enzymes and activity of their a-amylase under the experimental conditions are comparable to those of the enzymes involved in membrane digestion of the host and parasite, which can be evidence of the significant contribution of enzymes produced by symbiotic microflora to the digestive processes in macroorganisms.
Izvekova
G I
GI
D000818:Animals; D001419:Bacteria / Q000201:enzymology*; D050260:Carbohydrate Metabolism; D002589:Cestoda / Q000382:microbiology* / Q000502:physiology; D005399:Fishes / Q000382:microbiology* / Q000469:parasitology*; D006026:Glycoside Hydrolases / Q000378:metabolism*; D006790:Host-Parasite Interactions; D006868:Hydrolysis; D007413:Intestinal Mucosa / Q000382:microbiology; D013559:Symbiosis
D006026:Glycoside Hydrolases; C019822:carbohydrase