Effects of Environmental Factors on the Uptake Rates of Dissolved Nitrogen by a Salt-water Green Alga ( Oocystis borgei Snow)

Huang, Xianghu; Li, Xiaoju; Wang, Yaqiong; Zhou, Meihua
October 2012
Bulletin of Environmental Contamination & Toxicology;Oct2012, Vol. 89 Issue 4, p905
Academic Journal
Uptake rates for dissolved nitrogen (DN) by a marine alga ( Oocystis borgei) were examined in a N tracer experiment. Maximal uptake rates for all forms of DN were observed at temperatures between 25 and 30°C and at algal concentrations between 3.22 × 10 and 4.78 × 10cell L. Light intensity required to achieve the maximal uptake rate was 45 μmol m s for dissolved inorganic nitrogen (DIN = NO, NO, NH) and methionine, and 126 μmol m s for urea. Salinity required to achieve the maximal uptake rate was 12.85 ppt for DIN, 19.89 ppt for urea and 26.2 ppt for methionine.


Related Articles

  • Desalination's appeal evaporates. Weber, Peter // World Watch;Nov/Dec1991, Vol. 4 Issue 6, p8 

    No abstract available.

  • Water Mark. Broderick, Pat // San Diego Business Journal;5/23/2005, Vol. 26 Issue 21, p47 

    Reports on the environmental impact report on the proposed desalinaton plant in Carlsbad, California.

  • On the temperature dependence of organic reactivity, nitrogen oxides, ozone production, and the impact of emission controls in San Joaquin Valley California. Pusede, S. E.; Gentner, D. R.; Wooldridge, P. J.; Browne, E. C.; Rollins, A. W.; K.-E. Min; Russell, A. R.; Thomas, J.; L. Zhang; Brune, W. H.; Henry, S. B.; DiGangi, J. P.; Keutsch, F. N.; Harrold, S. A.; Thornton, J. A.; Beaver, M. R.; St. Clair, J. M.; Wennberg, P. O.; Sanders, J.; Ren, X. // Atmospheric Chemistry & Physics Discussions;2013, Vol. 13 Issue 11, p28511 

    The San Joaquin Valley (SJV) experiences some of the worst ozone air quality in the US, frequently exceeding the California 8 h standard of 70.4 ppb. To improve our understanding of trends in the number of ozone violations in the SJV, we analyze observed relationships between organic reactivity,...

  • Use of Project MOHAVE Perfluorocarbon Tracer Data to Evaluate Source and Receptor Models. Green, Mark C.; Tombach, Ivar // Journal of the Air & Waste Management Association (Air & Waste M;May2000, Vol. 50 Issue 5, p717 

    Project MOHAVE was a major monitoring, modeling, and data analysis study whose objectives included the estimation of the contributions of the Mohave Power Project (MPP) and other sources to visibility impairment in the southwestern United States, in particular at Grand Canyon National Park. A...

  • WATCH IT.  // Instyle;Jan/Feb2010, Vol. 16 Issue 11, p110 

    The article focuses on the environmental impact of the government's decision to provide more attention on desalination plants in Australia. It states that the decision was part of the government's effort to fund a huge greenhouse gas and salt-producing factory to supply extra water. It notes...

  • Desalination Technologies: Hellenic Experience. Zotalis, Konstantinos; Dialynas, Emmanuel G.; Mamassis, Nikolaos; Angelakis, Andreas N. // Water (20734441);May2014, Vol. 6 Issue 5, p1134 

    Beyond doubt, desalination is growing rapidly worldwide. However, there are still obstacles to its wider implementation and acceptance such as: (a) high costs and energy use for fresh water production; (b) environmental impacts from concentrate disposal; (c) a complex, convoluted and...

  • Making water -- hold the salt. Davidson, Steve // Ecos;Apr/May2005, Issue 124, p23 

    The article reports on the environmental impacts of the desalination technology. Desalination technology is becoming more efficient, and more feasible. Proponents say it now makes good sense in Australia, but critics argue that wider environmental impacts must still be taken into account....

  • Decision support system development for adaptive management of desalination plant outfalls in marine ecosystems. Torres, Jose M. Hernandez; Mascarella, Aina Hernandez; Cortes, Jose M.; Monerris, Miguel Martin; Molina, Rafael; Hernandez, Marta Navarro // Desalination & Water Treatment;Oct2010, Vol. 22 Issue 1-3, p379 

    ASDECO is a R&D project whose main objective is to design a system that allows for the implementation of Adaptive Management for brine discharges from desalination plants into the sea. The project has two phases: to design and to adapt the instrumental system to the characteristics of the brine...

  • Southern Water to assess desalination.  // Utility Week;1/9/2015, p18 

    The article reports that water utility Southern Water Services Ltd. has started environmental assessments for a potential desalination plant near Southampton, England.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics