Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf

Dunaliella sp. is from division of chlorophyte algae that has a global distribution and is abundantly reported in the coastal waters of Chabahar Bay.This algae is a euryhalin species which may support high temperatures and lack of Nitrogen conditions in the sea. Also as a response to environmental s...

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Main Author: Sh. Enayati; A. Javanshirkhoei; Gh. Rafiei; H. Porbagher; A.A. Moradinasab
Format: Article
Language:fas
Published: Iranian Fisheries Research Organization 2018-01-01
Series:‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
Subjects:
Online Access:http://isfj.areo.ir/article_118226_en.html
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spelling doaj-e812f56a5e4f4feb9929dc403b9d8ef82020-11-25T01:48:07ZfasIranian Fisheries Research Organization‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān1026-13542322-59982018-01-012757182 Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf Sh. Enayati; A. Javanshirkhoei; Gh. Rafiei; H. Porbagher; A.A. MoradinasabDunaliella sp. is from division of chlorophyte algae that has a global distribution and is abundantly reported in the coastal waters of Chabahar Bay.This algae is a euryhalin species which may support high temperatures and lack of Nitrogen conditions in the sea. Also as a response to environmental stresses it fluctuates pigment reserves specially the Beta-Carotene.The aim of this study was effects of salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. In this study in beyond the separation and purification of Dunaliella sp. from seawater, the impact of different levels of salinity (0.5, 0.75, 1, 1.5, 2, 3 and 4 mol NaCl) on growth, the amount of chlorophyll and β- carotene were measured during a period of 4 weeks. Chlorophyll a, b and β-carotene contents were determined spectrophotometrically from algal pellets using 80% (v/v) acetone/water mixture. Results showed that the Dunaliella sp. in treatments of 0.5, 0.75, 1, 1.5, 2, 3 and 4 mol NaCl could grow, but the maximum growth of this algae and the maximum amount of β-carotene were observed in salinities between 1.5 to 2 mol NaCl (p<0.05). Parallel to growth of the algae the production of chlorophyll a and b was increased in all salinities treatments but their production causes a decrease in β- carotene production.http://isfj.areo.ir/article_118226_en.htmlSalinity; Growth; chlorophyll; Dunaliella sp; Chabahar Gulf
collection DOAJ
language fas
format Article
sources DOAJ
author Sh. Enayati; A. Javanshirkhoei; Gh. Rafiei; H. Porbagher; A.A. Moradinasab
spellingShingle Sh. Enayati; A. Javanshirkhoei; Gh. Rafiei; H. Porbagher; A.A. Moradinasab
Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf
‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
Salinity; Growth; chlorophyll; Dunaliella sp; Chabahar Gulf
author_facet Sh. Enayati; A. Javanshirkhoei; Gh. Rafiei; H. Porbagher; A.A. Moradinasab
author_sort Sh. Enayati; A. Javanshirkhoei; Gh. Rafiei; H. Porbagher; A.A. Moradinasab
title Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf
title_short Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf
title_full Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf
title_fullStr Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf
title_full_unstemmed Effects salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. isolated from Chabahar Gulf
title_sort effects salinity on growth, chlorophyll and β-carotene concentration in dunaliella sp. isolated from chabahar gulf
publisher Iranian Fisheries Research Organization
series ‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
issn 1026-1354
2322-5998
publishDate 2018-01-01
description Dunaliella sp. is from division of chlorophyte algae that has a global distribution and is abundantly reported in the coastal waters of Chabahar Bay.This algae is a euryhalin species which may support high temperatures and lack of Nitrogen conditions in the sea. Also as a response to environmental stresses it fluctuates pigment reserves specially the Beta-Carotene.The aim of this study was effects of salinity on growth, chlorophyll and β-carotene concentration in Dunaliella sp. In this study in beyond the separation and purification of Dunaliella sp. from seawater, the impact of different levels of salinity (0.5, 0.75, 1, 1.5, 2, 3 and 4 mol NaCl) on growth, the amount of chlorophyll and β- carotene were measured during a period of 4 weeks. Chlorophyll a, b and β-carotene contents were determined spectrophotometrically from algal pellets using 80% (v/v) acetone/water mixture. Results showed that the Dunaliella sp. in treatments of 0.5, 0.75, 1, 1.5, 2, 3 and 4 mol NaCl could grow, but the maximum growth of this algae and the maximum amount of β-carotene were observed in salinities between 1.5 to 2 mol NaCl (p<0.05). Parallel to growth of the algae the production of chlorophyll a and b was increased in all salinities treatments but their production causes a decrease in β- carotene production.
topic Salinity; Growth; chlorophyll; Dunaliella sp; Chabahar Gulf
url http://isfj.areo.ir/article_118226_en.html
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