Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions

Microalgae assimilate different types of nitrogen by interacting in different areas. The interactive effect of uptake rate and biomass production of Chlorella vulgaris was investigated under summer and fall environmental conditions. C. vulgaris was cultivated in a media containing 1 mM NH4Cl, 0.5 mM...

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Main Authors:	R., Taheri, M., Shariati
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/7294/ http://journalarticle.ukm.my/7294/ http://journalarticle.ukm.my/7294/1/43_1_11.pdf

id	ukm-7294
recordtype	eprints
spelling	ukm-72942016-12-14T06:43:39Z http://journalarticle.ukm.my/7294/ Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions R., Taheri M., Shariati Microalgae assimilate different types of nitrogen by interacting in different areas. The interactive effect of uptake rate and biomass production of Chlorella vulgaris was investigated under summer and fall environmental conditions. C. vulgaris was cultivated in a media containing 1 mM NH4Cl, 0.5 mM NH4Cl + 0.5 mM KNO3, and 1 mM KNO3 as the nitrogen source.Nitrate and ammonium was more rapidly utilized when both were available. C. vulgaris preferred ammonium to nitrate in the fall condition, but both nitrate and ammonium were completely assimilated in the summer condition. The uptake rate of nitrate and ammonium in the summer condition was significantly higher (p < 0.01) than in the fall condition and the summer/fall ratio for nitrate uptake (290%) was significantly higher (p < 0.01) than for ammonium (120%). In all experiments,biomass production in the summer condition was significantly higher than fall condition (p < 0.01). The highest biomass was during the summer condition (5 g/l (f wt)) from the medium containing NO3-as the nitrogen source. C. vulgaris recorded faster growth in the NO3 - and (NO3- + NH4+) media than in the NH4+ medium. The summer/fall ratio of biomass production was 235%, 300%, and 265% for the media containing NO3 -, NH4+, and (NO3- + NH4 +), respectively. Penerbit Universiti Kebangsaan Malaysia 2014-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7294/1/43_1_11.pdf R., Taheri and M., Shariati (2014) Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions. Malaysian Applied Biology, 43 (1). pp. 97-105. ISSN 0126-8643 http://mabjournal.com/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Microalgae assimilate different types of nitrogen by interacting in different areas. The interactive effect of uptake rate and biomass production of Chlorella vulgaris was investigated under summer and fall environmental conditions. C. vulgaris was cultivated in a media containing 1 mM NH4Cl, 0.5 mM NH4Cl + 0.5 mM KNO3, and 1 mM KNO3 as the nitrogen source.Nitrate and ammonium was more rapidly utilized when both were available. C. vulgaris preferred ammonium to nitrate in the fall condition, but both nitrate and ammonium were completely assimilated in the summer condition. The uptake rate of nitrate and ammonium in the summer condition was significantly higher (p < 0.01) than in the fall condition and the summer/fall ratio for nitrate uptake (290%) was significantly higher (p < 0.01) than for ammonium (120%). In all experiments,biomass production in the summer condition was significantly higher than fall condition (p < 0.01). The highest biomass was during the summer condition (5 g/l (f wt)) from the medium containing NO3-as the nitrogen source. C. vulgaris recorded faster growth in the NO3 - and (NO3- + NH4+) media than in the NH4+ medium. The summer/fall ratio of biomass production was 235%, 300%, and 265% for the media containing NO3 -, NH4+, and (NO3- + NH4 +), respectively.
format	Article
author	R., Taheri M., Shariati
spellingShingle	R., Taheri M., Shariati Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions
author_facet	R., Taheri M., Shariati
author_sort	R., Taheri
title	Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions
title_short	Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions
title_full	Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions
title_fullStr	Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions
title_full_unstemmed	Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions
title_sort	interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by chlorella vulgaris in different environmental conditions
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/7294/ http://journalarticle.ukm.my/7294/ http://journalarticle.ukm.my/7294/1/43_1_11.pdf
first_indexed	2023-09-18T19:49:18Z
last_indexed	2023-09-18T19:49:18Z
_version_	1777406111813468160

Interactive effect of ammonium and nitrate on the nitrogen uptake and biomass production by Chlorella vulgaris in different environmental conditions

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