Influences of different physico-chemical factors on three Cyanobacteria separated from biological soil crusts
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DOI:10.7606/j.issn.1000-7601.2010.01.37
Key Words: biological soil crusts  cyanobacteria  physico-chemical factor
Author NameAffiliation
ZHENG Yunpu College of Life Science, Hebei Normal University, Shijiazhuang, Hebei 050016, China
Institute of Geographical Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 100101, China 
ZHAO Jiancheng College of Life Science, Hebei Normal University, Shijiazhuang, Hebei 050016, China 
ZHANG Bingchang Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China 
XU Ming Institute of Geographical Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 100101, China 
LIANG Hongzhu College of Life Science, Hebei Normal University, Shijiazhuang, Hebei 050016, China 
LI Min College of Life Science, Hebei Normal University, Shijiazhuang, Hebei 050016, China 
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Abstract:
      Microcoleus vaginatus (Vauch.) Gom., Scytonema ocellatum Lyngb and Nostoc commune Vauch. separated from biological soil crusts were cultured primarily under laboratory conditions. Meanwhile, the influences of different physico-chemical factors on them were also analyzed by orthogonal design. The results suggest that the best culturing conditions of Microcoleus vaginatus, Scytonema ocellatum, Nostoc commune is pH 8, Ca2+ concentration is 3.54×10-5 mol/L and Mg2+ concentration is 5.1×10-5 mol/L, K+ concentration is 1.345×10-5 mol/L; pH 9, Ca2+ concentration is 1.77×10-5 mol/L, Mg2+ concentration is 5.1×10-5 mol/L and K+ concentration is 2.69×10-5 mol/L; pH 10, Ca2+ concentration is 1.77×10-5 mol/L, Mg2+ concentration is 1.02×10-4 mol/L and K+ concentration is 5.38×10-5 mol/L.