THE EFFECT OF NITRATE DEFICIENCY ON CELL DIVISION AND BETA-CAROTENE AND CHLOROPHYLL SYNTHESIS IN UNICELLULAR GREEN ALGA DUNALIELLA SALINA ISOLATED FROM SALT MARSH OF GAVKHONI, ISFAHAN

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SHARIATI M.; ZOUFAN P.

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Journal: Year:2003 | Volume:16 | Issue:2 (59 IN ANIMAL AND FISHERIES SCIENCES) Page(s): 7-13

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Title

THE EFFECT OF NITRATE DEFICIENCY ON CELL DIVISION AND BETA-CAROTENE AND CHLOROPHYLL SYNTHESIS IN UNICELLULAR GREEN ALGA DUNALIELLA SALINA ISOLATED FROM SALT MARSH OF GAVKHONI, ISFAHAN

Author(s)

SHARIATI M. | ZOUFAN P. | Issue Writer Certificate

Keywords

KN03Q4

BETA - CAROTENEQ3

CHLOROPHYLLQ3

DUNALIEILA SALINAQ3

CELL DENSITYQ3

SPECIFIC GROWTHQ3

Abstract

Effect of five concentrations of KN03 (zero, 0.5, 1.5,5 as a control, 10 mM) in 1 M NaCl on the CELL DENSITY and content of pigments (beta-carotene and CHLOROPHYLL) was investigated in Iranian strain of D. Salina. The cultures were kept at light intensity of 100µ mol photon. m-2. S-1.1 , light / dark regime of 16/8 hours at 26±2c The result illustrated, 0.5 mM nitrate in the medium is caused to decreasing of growth, increasing of intracellular beta-carotene. However, at higher concentration of nitrate in the medium no significant changes were observed. In addition, it was revealed that except the medium with no nitrate, at all concentration there is no significant difference in SPECIFIC GROWTH rate (µ) of cultures and 10 mm nitrate in the medium had no any negative effect on growth of this strain. As a result, it appeared that nitrate limitation (0.5 mM) arises content of beta-carotene in Iranian strain of D. Salina, but this accumulation is lesser than other strains were reported in the literatures. Therefore, it seems, this strain uses replacement pathways for scavenging of free radicals, which probably is produced by nitrate deficiency.

Cites

EFFECT OF SULFATE DEFICIENCY ON CELL DIVISION, BETA-CAROTENE, CHLOROPHYLL ACCUMULATION, AND PHOTOSYNTHESIS IN GREEN ALGA DUNALLIELLA SALINA (ISOLATED FROM SALT MARSH OF GAVKHONI, ISFAHAN )

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APA: Copy

SHARIATI, M., & ZOUFAN, P.. (2003). THE EFFECT OF NITRATE DEFICIENCY ON CELL DIVISION AND BETA-CAROTENE AND CHLOROPHYLL SYNTHESIS IN UNICELLULAR GREEN ALGA DUNALIELLA SALINA ISOLATED FROM SALT MARSH OF GAVKHONI, ISFAHAN. PAJOUHESH-VA-SAZANDEGI, 16(2 (59 IN ANIMAL AND FISHERIES SCIENCES)), 7-13. SID. https://sid.ir/paper/19211/en

Vancouver: Copy

SHARIATI M., ZOUFAN P.. THE EFFECT OF NITRATE DEFICIENCY ON CELL DIVISION AND BETA-CAROTENE AND CHLOROPHYLL SYNTHESIS IN UNICELLULAR GREEN ALGA DUNALIELLA SALINA ISOLATED FROM SALT MARSH OF GAVKHONI, ISFAHAN. PAJOUHESH-VA-SAZANDEGI[Internet]. 2003;16(2 (59 IN ANIMAL AND FISHERIES SCIENCES)):7-13. Available from: https://sid.ir/paper/19211/en

IEEE: Copy

M. SHARIATI, and P. ZOUFAN, “THE EFFECT OF NITRATE DEFICIENCY ON CELL DIVISION AND BETA-CAROTENE AND CHLOROPHYLL SYNTHESIS IN UNICELLULAR GREEN ALGA DUNALIELLA SALINA ISOLATED FROM SALT MARSH OF GAVKHONI, ISFAHAN,” PAJOUHESH-VA-SAZANDEGI, vol. 16, no. 2 (59 IN ANIMAL AND FISHERIES SCIENCES), pp. 7–13, 2003, [Online]. Available: https://sid.ir/paper/19211/en

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