Usually, the morphology of Spirulina is a screw-like coil. However, my strain changed its morphology into a straight form. How does it happen? Can it change back into a screw-like coil shape? Any suggestions or advice?
It is not yet clear why some spirulina cultures are more "linear" than others. Growth conditions are certainly the main cause of the morphological change of spirulina, but sometimes it is also due to a specific growth phase of the biomass.
I would check if there are any problem with culture media, or if is present a contamination by other cyanobacteria.
Thank you Giovanni Luca Russo . I repeated the cultivation many times. But, the morphology is still in straight form. Does it still possible to change back the original screw shape?
When the culture is stressed, the morphology of the cells change from spiral to straight. From my experience, nutrient limitation is one of the reason and so is the light stress. I would say, try growing it in optimal medium (especially nitrate and phosphate) under low light. The culture should look normal again.
Sunil Tiwari Thanks for your suggestion. I will try to reculture it again. Appreciate it.
- Badges
- Science topic
- Similar topics
- Phytochemistry
- Extracts