engleski

The effect of naringenin on hydra – alga symbiosis

Flavonoids are plant pigments found in fruit, vegetables, tea, flowers and wine. Naringenin is a flavonoid that belongs to the group of flavanones and its effect was monitored on hyda – alga symbiosis. As test organisms used were: Hydra viridissima Pallas, 1766 and Hydra oligactis Pallas, 1766, endosymbiotic algae isolated from the hydra host Mychonastes homosphaera (Skuja) Kalina and Punčochářová, Desmodesmus subspicatus (Chodat) Hegewald and Schmidt and related free – living species Chlorella vulgaris Beij. Morphological and cyto – hystological analysis was made using concentrations of 0, 2 gL−1, 0, 25gL−1 and 0, 3 gL−1 of naringenin. It was determined that the middle concentration does not favor growth of the organisms. Mortality, budding, mucus secretion, migration and contractions of hydra as well as viability of algal cells were monitored by stereo microscopy and changes in structural cell organization were observed by light microscopy.

naringenin, hydras, algae, structural changes, microscopy

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