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Blue Green Algae

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Yusuo Yang – One of the best experts on this subject based on the ideXlab platform.

  • The prospect function of terrestrial nitrogen-fixing BlueGreen Algae on the fixation of desert
    Ecosystems Dynamics Ecosystem-Society Interactions and Remote Sensing Applications for Semi-Arid and Arid Land, 2003
    Co-Authors: Yusuo Yang

    Abstract:

    ABSTRACT The Terrestrial Nitrogen-fixing BlueGreen Algae, which are possessed of both photosynthesis and nitrogen fixation, are the leading organisms in the adverse circumstances. With their typical cell structures and physiological abilities, they are strongly resistant to drought, infertility etc. The growth of Terrestrial Nitrogen-fixing BlueGreen Algae can rich the soils in nitrogen and organic compounds, which are benefit to other microbes and plants. Terrestrial Nitrogen-fixing BlueGreen Algae are widely distributed in Gurbantunggut Desert. It was estimated that about 40% of the surface of the desert are covered by the “Black Crust”. “Black Crust” is mainly occupied by Terrestrial Nitrogen-fixing BlueGreen Algae. It is Terrestrial Nitrogen-fixing BlueGreen Algae that construct the mechanical crust with a little other Algae and fungi through biological, chemical and physical actions. So Terrestrial Nitrogen-fixing BlueGreen Algae play an important part in desert fixation. It was analyzed that there are three species of the BlueGreens in the “Black Crust”: Microcoleus vaginatus(Vauch)Gom.,Scytonema ocellatum Lynbye and Schizothrix mella Gardner. We had isolated Microcoleus vaginatus(Vauch)Gom.and Scytonema ocellatum Lynbye . Some tests had been made to prove the feasibility of the desert fixation of the BlueGreens. Under experiment conditions, the BlueGreens grown on the surface of sand, covered the sand quickly after the inoculation, and formed a mechanical fixed surface layer (7 days for Microcoleus vaginatus, 15-21days for Scytonema ocellatum ). Key words: Terrestrial Nitrogen-fixing BlueGreen Algae; Environmental Effect; Desert Fixation

S. H. Ley – One of the best experts on this subject based on the ideXlab platform.

  • Nitrogen-Fixing BlueGreen Algae
    The Nitrogen Fixation and its Research in China, 1992
    Co-Authors: S. H. Ley

    Abstract:

    BlueGreen Algae (Cyanobacteria) are a special group of prokaryotes. They have chlorophyll and phycobiliprotein and can fix carbon by oxygen-evolution photosynthesis like plants; and their genome contains nucleotide sequences which are comparable with that of 16S and 5S rRNA of cubacteria. Therefore, in tradition, they are called Cyanophyta (Myxophyta, Cyanophyceae), but in the recent decade, they are also called Cyanobacteria. (According to the “Manual of Systematic Bacteriology” Vol. 3 (1989), they can be called cyanobacteria or BlueGreen Algae or Cyanophyceae). For convenience, I use BGA (BlueGreen Algae) for these prokaryotes in this paper. BGA are widely distributed all over the earth. While fixing carbon from CO2, certain BGA can fix dinitrogen from the atmosphere, and are called nitrogen-fixing BGA, including free living and symbiotic forms.

Ren Jian – One of the best experts on this subject based on the ideXlab platform.

  • Meteorological Condition of BlueGreen Algae Fast Growth of Lake Tai in 2007
    Journal of Anhui Agricultural Sciences, 2008
    Co-Authors: Ren Jian

    Abstract:

    [Objective] The research aimed to study main meteorological factors of BlueGreen Algae fast growth of Lake Tai in 2007.[Method] The data of Dongshan weather station in 2007 was deputy to analyze the relationship between same history time meteorological conditions and the time of BlueGreen Algae fast growth.[Result] Continuance higher temperature and enough sunshine supplied safeguard on the quantity of heat for the growth of BlueGreen Algae.Few rain and low mean wind supplied safeguard for the granule of BlueGreen Algae on the surface and conglomeration.[Conclusion] The climate anomaly aroused BlueGreen Algae fast growth of Lake Tai in 2007.So,the study of the relationship between meteorological condition and BlueGreen Algae fast growth of Lake Tai should be strengthened so as to improve the ability of weather forecast.