Тип публикации: статья из журнала
Год издания: 2017
Идентификатор DOI: 10.5943/mycosphere/8/1/2
Ключевые слова: Enzymes and substrate of luminescent reaction, kinetics of luminescence, Luminous mycelia, Nonluminous fruiting bodies of fungus
Аннотация: Mycelium of Armillaria species exhibit bioluminescence in nature and when cultivated on artificial nutrient media. However, fruiting bodies do not emit visible light. The present study investigates biochemical changes which cause this phenomenon. Light emission was studied in experiments with mixtures of cold and hot extracts of the luminous mycelium of Armillaria borealis IBSO 2328 and nonluminous fruiting bodies of this fungus and an unidentified species of the genus (Armillaria sp.). Hot extracts of fruiting bodies of the nonluminous Pholiota squarrosa were used as the substrate analog of the luminescent reaction, as previously this fungus had been found to contain a high amount of this substance. Control experiments showed that cold extracts of A. borealis IBSO 2328 mycelium contained enzymes for the luminescent reaction, which is initiated after addition hot extracts of P. squarrosa fruiting bodies. Parallel experiments with extracts of the fruiting bodies of Armillaria showed that: (i) - cold extracts did not contain enzymes of the luminescent reaction or contain very small amounts of these enzymes and (ii) - hot extracts did not contain substrate of the luminescent reaction. Thus, the reason why fruiting bodies of Armillaria do not emit light is that they do not contain components required for visible luminescence. The study discusses possible causes why the enzymes and substrate of the luminescent reaction are not synthesized in fruiting bodies of Armillaria.
Выпуск журнала: Т. 8, № 1
Номера страниц: 9-17
ISSN журнала: 20777019
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