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不同地区库蚊复组群体的同工酶遗传多样性研究Genetic Diversity of Isoenzyme in Culex pipiens complex Field Populations Sampling from Distinct Area of China
库蚊复组 遗传多样性 工酶
2008/1/10
摘要采用水平切片淀粉凝胶电泳的方法，对分布于我国5省的8个库蚊复组（Culex pipiens complex）野生群体的遗传多样性进行研究，分析了4个酶系统7个基因座(ME、MDH-1、MDH-2、MDH-3、GPD、EST-2、EST-3)的酶谱资料。结果显示：（1）群体内存在不同程度的遗传变异（He为0.098～0.41）；（2）较低的基因流水平（Nm=0.64）使遗传漂变起主要作用，造成群...
Iron requirements for dinitrogen- and ammonium-supported growth in cultures of Trichodesmium (IMS 101): Comparison with nitrogen fixation rates and iron:carbon ratios of field populations
Iron requirements nitrogen- and ammonium-supported growth cultures of Trichodesmium nitrogen fixation rates and iron field populations
2014/5/21
We quantified the relationships among the specific growth rate, intracellular iron content, and steady state iron uptake rate for cultures of the marine diazotrophic cyanobacterium Trichodesmium (IMS ...
Urease activity in cultures and field populations of the toxic dinoflagellate Alexandrium
Urease activity in cultures field populations toxic dinoflagellate Alexandrium
2014/5/20
Nitrogen availability is an important factor controlling phytoplankton abundance and species composition in marine waters. In addition to inorganic nitrogen, some phytoplankton species can use dissolv...