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Fluorescence parameters of marine plankton algae at the assimilation of organic nitrogen

Fluorescence parameters of marine plankton algae at the assimilation of organic nitrogen fluorescence parameters of marine plankton algae Pseudo-nitzschis delicatissima, Thalassiosira weissflogii, and Tetraselmis viridis were estimated after the addition of organic (urea and glycine) and inorganic (nitrate and ammonia) nitrogen to nitrogen-limited cultures acclimated to limited and saturated irradiance. The photochemical efficiency of photosystem 2, the maximum relative electron transport, and the light saturation index increased in the algae assimilating organic nitrogen. The dynamics of parameters depended species specifically on the nitrogen source and irradiance. The ecological role of organic nitrogen in the seasonal dynamics and vertical distribution of phytoplankton is discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Moscow University Biological Sciences Bulletin Springer Journals

Fluorescence parameters of marine plankton algae at the assimilation of organic nitrogen

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References (40)

Publisher
Springer Journals
Copyright
Copyright © 2007 by Allerton Press, Inc.
Subject
Life Sciences; Life Sciences, general; Biomedical Engineering; Biochemistry, general; Cell Biology; Plant Sciences; Zoology
ISSN
0096-3925
eISSN
1934-791X
DOI
10.3103/S0096392507030054
Publisher site
See Article on Publisher Site

Abstract

fluorescence parameters of marine plankton algae Pseudo-nitzschis delicatissima, Thalassiosira weissflogii, and Tetraselmis viridis were estimated after the addition of organic (urea and glycine) and inorganic (nitrate and ammonia) nitrogen to nitrogen-limited cultures acclimated to limited and saturated irradiance. The photochemical efficiency of photosystem 2, the maximum relative electron transport, and the light saturation index increased in the algae assimilating organic nitrogen. The dynamics of parameters depended species specifically on the nitrogen source and irradiance. The ecological role of organic nitrogen in the seasonal dynamics and vertical distribution of phytoplankton is discussed.

Journal

Moscow University Biological Sciences BulletinSpringer Journals

Published: Sep 25, 2007

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