郑云普,赵建成,张丙昌,徐明,梁红柱,李敏.不同理化因子对荒漠生物结皮中三种蓝藻生长的影响[J].干旱地区农业研究,2010,28(1):206~211 |
不同理化因子对荒漠生物结皮中三种蓝藻生长的影响 |
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 |
中文关键词: 生物结皮 蓝藻 理化因子 |
英文关键词:biological soil crusts cyanobacteria physico-chemical factor |
基金项目:国家自然科学基金(40571085, 40771114, 30670152); 中国科学院知识创新工程重要方向项目(NKZCX2-YW-336) |
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中文摘要: |
对实验室分离荒漠生物结皮中的具鞘微鞘藻〔Microcoleus vaginatus(Vauch.) Gom.〕、眼点伪枝藻(Scytonema ocellatum Lyngb)、地木耳(Nostoc commune Vauch.)3种蓝藻分别进行了培养,利用正交设计的方法研究了pH值、K+、Ca2+、Mg2+
4种理化因子对其生长的影响,初步探讨了3种蓝藻在实验室内生长所需的最适生理条件。研究结果表明,具鞘微鞘藻的最适生理条件:pH值为8,Ca2+浓度为3.54×10-5 mol/L,Mg2+浓度为5.1×10-5 mol/L,K+浓度为1.345×10-5 mol/L;眼点伪枝藻的最适生理条件为:pH值9,Ca2+浓度为1.77×10-5 mol/L,Mg2+浓度为5.1×10-5 mol/L,K+浓度为2.69×10-5 mol/L;地木耳的最适生理条件为:pH值为10,K+浓度为5.38×10-5 mol/L,Ca2+浓度为1.77×10-5 mol/L,Mg2+浓度为1.02×10-4 mol/L。 |
英文摘要: |
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. |
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