Functional features of trophic use of carbon sources by pathogenic champignon bacteria (Agaricus bisporus)

  • T. Ivanova National University of Life and Environmental Sciences of Ukraine, 15, Heroiv Oborony Str. building 3, Kyiv, Ukraine, 03041
  • M. Patyka National University of Life and Environmental Sciences of Ukraine, 15, Heroiv Oborony Str. building 3, Kyiv, Ukraine, 03041
  • T. Tarasiuk National University of Life and Environmental Sciences of Ukraine, 15, Heroiv Oborony Str. building 3, Kyiv, Ukraine, 03041
Keywords: Agaricus bisporus, pathogens, isolate, carbon sources, enzymatic activity

Abstract

Goal. Purpose. The study of the functional features of pathogenic bacteria, which are isolated from Agaricus bisporus.

Methods. The subject of the study is 16 isolates of pathogenic bacteria, which are isolated from Agaricus bisporus. They manifested as primary infections at the stage of active growth of the fungus. They are typically only for mushrooms. We used biotechnological methods. We isolated cultures of microorganisms to identify, sowing was carried out for splitting carbon sources on synthetic nutrient media with the adding of appropriate sugars. Using biochemical me­thods, trophic features of pathogenic bacteria were determined in order to develop biotechnologies for controlling their spread. The oxidase activity of bacteria was determined by the method of Kovach on a membrane filter previously moistened with NN-dimethil-p-pheniline diamine sulfate. Catalase activity was determined by adding to the culture drop a 10% solution of hydrogen peroxide. We used an innovative and universal method for determining the sources of carbon nutrition of microorganisms — КВ009 TM HiCarbo Kit.

Results. We have identified the sources of carbon nutrition of pathogenic bacteria using a test system. Isolate 9.4 utilizes sugars such as xylose, dextrose, galactose, melibiose L-arabinose, mannose, ONPG (ortho-nitrophenyl-β-galactopyranose), esculin, citrate, malonate. Isolate 6.2 when tested showed a positive result for xylose, dextrose. Isolate 6.1 uses such sugars: dextrose, trehalose, melibiose, mannose. Isolate 9.5 is indicated by the presence of ONPG, esculin, citrate and malonate and the absence of catalase. Isolates 11.1 and 9.5 have a positive oxidase reaction. Isolates 6.2 and 13.2 had a weak reaction. The reaction to the breakdown of carbohydrates showed that all isolates had an oxidative type of metabolism.

Conclusions. The biochemical properties of the reaction to the breakdown of carbohydrates in a synthetic nutrient media, the oxidase activity of bacteria by the Kovac method, the catalase activity and carbon nutrition sources of pathogenic bacteria isolated from the fruit bodies of Agaricus bisporus were studied.

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Published
2019-12-06
How to Cite
Ivanova , T., Patyka , M., & Tarasiuk , T. (2019). Functional features of trophic use of carbon sources by pathogenic champignon bacteria (Agaricus bisporus). Quarantine and Plant Protection, (11-12), 9-13. https://doi.org/10.36495/2312-0614.2019.11-12.9-13
Section
SCIENTIFIC RESEARCH