Effect Of Extract Of Chlorogloeopsis Fritschii On The Growth Of Hapalosiphon

Aqueous extract of Chlorogloeopsis fritschii on exponential growth phase (10 Days) was used to evaluate the effect on the growth of different selected strains of Hapalosiphon. On the basis of the results of the present observation it has been concluded that aqueous extract of exponential growth phase of Chlorogloeopsis fritschii shows stimulatory effect on the growth of most of the selected strains of Hapalosiphon such as Hapalosiphon-53, Hapalosiphon-350, Hapalosiphon-384 except Hapalosiphon-196 which shows inhibitory effect. Chlorogloeopsis fritschii also shows autoinhibition