engleski

New observations on Green Hydra Symbiosis

New observations in green hydra symbiosis were described. Herbicide norflurazon was chosen as a "trigger" for analysis of these observations. Green hydra (Hydra viridissima Pallas, 1766) is a typical example of endosymbiosis. In its gastrodermal myoeptihelial cells it contains the individuals of Chlorella vulgaris Beij. (Kessler & Huss, 1992) species. Ultrastructural changes were observed by means of TEM. Newly observed and described morphological features in green hydra symbiosis were widening of the perialgal space, missing symbiosomes and joining of the existing perialgal spaces. Also, on the basis of these newly described mechanisms, recovery of green hydra after the intoxication period was explained. The final result of the disturbed symbiosis between hydra and alga was the reassembling of the endosymbiosis in particular individuals that survived.

Green hydra ; Chlorella ; perialgal space ; symbiosome ; symbiosis reassembly

Članak (journal article) ; Short Note