دراسة تأثير الطول الموجي للضوء و تركيز بعض الأملاح في وسط التنمية على النمو و المحتوى البروتيني و النايتروجيني للطحلب "Hapalosiphon Arboreus 3OW05S02"

الملخص EN

Local isolation was obtained from cyanobacteria fixing atmospheric nitrogen, and isolated from the local environment of the city of Mosul (Tigris River forest area).

This isolation was grown laboratory in the medium of Chu10.

As for the change of wavelengths of light, the red light results showed that the best wavelength of light was (620-750)nm, the biomass is (770) mg /L, the protein content is (230) g /ml, while the nitrogen content is (119) mg /L.

Also I studied a number of mineral elements that affected on growth and nitrogen content, and it was found that the best concentration of potassium phosphate K2HPO4 is (50) mg/L, as recorded the biomass is (802) mg/ L, the protein content is (202) g / ml, and the nitrogen content is (107) mg /L.

When adding different concentrations of Ca(No3)2 to the medium and comparing them without adding this material to the medium, the best concentration was (60) mg/ L, the biomass is (790) mg/L, the protein content is (138) g / ml, and the nitrogen content is (74) mg / L.