Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp.

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	Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp.
	Hu, Hanhua 1; Zhou, Qiubai 2
刊名	WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
	2010-05-01
卷号	26 期号:5 页码:957-961
关键词	Inorganic carbon acquisition Nitrate Nannochloropsis sp. Phosphate
ISSN号	0959-3993
通讯作者	Hu, HH, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
中文摘要	Nannochloropsis sp. was grown to the exponential phase and transferred to the high CO2 (2,800 mu l l(-1)) and irradiance (100 mu mol photons m(-2) s(-1)) condition with different levels of nitrate and phosphate for 72 h, then the photosynthetic activity and inorganic carbon acquisition of the alga were measured. The apparent photosynthetic efficiency (alpha) of Nannochloropsis sp. decreased with increasing NO3 (-) concentration from 150 to 3,000 mu M, and the high nitrate-grown cells showed the lowest levels of light-saturated photosynthetic rate (P (m)), while the low nitrate-grown cells showed the highest levels of dark respiration rate (R (d)). The maximal light-saturated photosynthetic rate and the minimal dark respiration rate were seen under the middle nitrate condition. When the nitrate concentration ranged from 150 to 3,000 mu M, the affinity for inorganic carbons of Nannochloropsis sp. increased sharply with the increasing NO3 (-) concentration to 300 mu M and then decreased significantly. The middle phosphate-grown cells exhibited the highest light-saturated photosynthetic rate and apparent photosynthetic efficiency, however, the affinity for inorganic carbons of Nannochloropsis sp. was the maximum under the low phosphate condition. It was shown that the appropriate nitrogen and phosphorus levels were of vital importance to the photosynthesis of cells.
英文摘要	Nannochloropsis sp. was grown to the exponential phase and transferred to the high CO(2) (2,800 mu l l(-1)) and irradiance (100 mu mol photons m(-2) s(-1)) condition with different levels of nitrate and phosphate for 72 h, then the photosynthetic activity and inorganic carbon acquisition of the alga were measured. The apparent photosynthetic efficiency (alpha) of Nannochloropsis sp. decreased with increasing NO(3) (-) concentration from 150 to 3,000 mu M, and the high nitrate-grown cells showed the lowest levels of light-saturated photosynthetic rate (P (m)), while the low nitrate-grown cells showed the highest levels of dark respiration rate (R (d)). The maximal light-saturated photosynthetic rate and the minimal dark respiration rate were seen under the middle nitrate condition. When the nitrate concentration ranged from 150 to 3,000 mu M, the affinity for inorganic carbons of Nannochloropsis sp. increased sharply with the increasing NO(3) (-) concentration to 300 mu M and then decreased significantly. The middle phosphate-grown cells exhibited the highest light-saturated photosynthetic rate and apparent photosynthetic efficiency, however, the affinity for inorganic carbons of Nannochloropsis sp. was the maximum under the low phosphate condition. It was shown that the appropriate nitrogen and phosphorus levels were of vital importance to the photosynthesis of cells.
学科主题	Biotechnology & Applied Microbiology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Biotechnology & Applied Microbiology
研究领域[WOS]	Biotechnology & Applied Microbiology
关键词[WOS]	CHLORELLA-VULGARIS ; CO2 CONCENTRATION ; MARINE MICROALGA ; LIGHT ; LIMITATION ; PHYTOPLANKTON ; ACCLIMATION ; METABOLISM ; MODULATION ; MECHANISMS
收录类别	SCI
资助信息	National Natural Science Foundation of China [40976079]
语种	英语
WOS记录号	WOS:000276497600025
公开日期	2010-12-23
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/13791]
专题	水生生物研究所_藻类生物学及应用研究中心_期刊论文
作者单位	1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Jiangxi Agr Univ, Coll Anim Sci & Technol, Nanchang 330045, Peoples R China
推荐引用方式 GB/T 7714	Hu, Hanhua,Zhou, Qiubai. Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp.[J]. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,2010,26(5):957-961.
APA	Hu, Hanhua,&Zhou, Qiubai.(2010).Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp..WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,26(5),957-961.
MLA	Hu, Hanhua,et al."Regulation of inorganic carbon acquisition by nitrogen and phosphorus levels in the Nannochloropsis sp.".WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 26.5(2010):957-961.