Search

The population of Chlorella cells flown as a component of the algobacterial cenosis--fish system on Cosmos-1887 was investigated. During the flight experiment over two generations of Chlorella cells were obtained. No differences in the algal growth rate in flight and on the ground were observed. On the whole, space flight did not affect the growth, development or population characteristics of Chlorella algae incorporated into the closed algobacterial cenosis-fish system.

The growth, development and population characteristics of Chlorella cells flown for 13 days in space were investigated during their postflight cultivation. The growth rate of flown algae did not differ from that of ground-based controls in terms of increases in the cell number and biomass. All basic parameters of the specimens (generation time, number of developing autospores, time ratio of developmental phases) were ontogentically normal. Exposure of the algae to space flight as a component of the algobacterial cenosis--fish autotrophic-heterotrophic system produced no significant effect of the population or individual specimens during their postflight cultivation.