THE EFFECTS OF DIFFERENT CONCENTRATIONS OF CADMIUM ON THE GROWTH RATE AND BETA-CAROTENE SYNTHESIS IN UNICELLULAR GREEN ALGAE DUNALIELLA SALINA

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SHARIATI M.; YAHYAABADI S.

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Title

THE EFFECTS OF DIFFERENT CONCENTRATIONS OF CADMIUM ON THE GROWTH RATE AND BETA-CAROTENE SYNTHESIS IN UNICELLULAR GREEN ALGAE DUNALIELLA SALINA

Author(s)

SHARIATI M. | YAHYAABADI S. | Issue Writer Certificate

Keywords

DUNALIELLA SALINAQ3

CADMIUMQ3

HEAVY METALQ3

BETA-CAROTENEQ3

CHLOROPHYLLQ3

FREE RADICALQ3

ANTIOXIDANTQ3

MAGNESIUMQ3

CALCIUMQ3

Abstract

The individual effects of CADMIUM concentrations (0, 0.005, 0.05and 0.5 mg. L-1) on the growth (cell number and CHLOROPHYLL content) and BETA-CAROTENE synthesis of two strains (Iranian and australian) of green algae D.salina have been studied for a duration of 36 days. The effects of these CADMIUM concentrations on the amount of cell MAGNESIUM and CALCIUM have also been evaluated. An increase in CADMIUM concentration resulted in a significant reduction in the cell number and CHLOROPHYLL content of D. salina. In comparison with control, in both strains, the increase of BETA-CAROTENE content of cells was observed in the first few days of the experiment, moreover, the amount of MAGNESIUM and CALCIUM in cells decreased. The results indicated that the addition of 0.5 mg. L-1 of CADMIUM in the medium results in a 50 percent reduction in cell number after 96h. The decrease in growth rate and the increase in BETA-CAROTENE content of cells is probably due to the formation of FREE RADICALs and deficiency of essential elements such as MAGNESIUM and CALCIUM, which is caused by high concentrations of CADMIUM in the medium.

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APA: Copy

SHARIATI, M., & YAHYAABADI, S.. (2006). THE EFFECTS OF DIFFERENT CONCENTRATIONS OF CADMIUM ON THE GROWTH RATE AND BETA-CAROTENE SYNTHESIS IN UNICELLULAR GREEN ALGAE DUNALIELLA SALINA. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, 30(A1), 57-63. SID. https://sid.ir/paper/117928/en

Vancouver: Copy

SHARIATI M., YAHYAABADI S.. THE EFFECTS OF DIFFERENT CONCENTRATIONS OF CADMIUM ON THE GROWTH RATE AND BETA-CAROTENE SYNTHESIS IN UNICELLULAR GREEN ALGAE DUNALIELLA SALINA. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE[Internet]. 2006;30(A1):57-63. Available from: https://sid.ir/paper/117928/en

IEEE: Copy

M. SHARIATI, and S. YAHYAABADI, “THE EFFECTS OF DIFFERENT CONCENTRATIONS OF CADMIUM ON THE GROWTH RATE AND BETA-CAROTENE SYNTHESIS IN UNICELLULAR GREEN ALGAE DUNALIELLA SALINA,” IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, vol. 30, no. A1, pp. 57–63, 2006, [Online]. Available: https://sid.ir/paper/117928/en

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