【作者】 黄河清； 孙耀东； 张凤章； 林庆梅；

【Author】 Huang He-Qing Sun Yao-Dong Zhang Feng-Zhang Lin Qing-mei(Deprtment of Biology , Research Center of Environment Science,Xiamen University,Xiamen 361005)

【机构】 厦门大学生物学系； 厦门大学环境科学研究中心；

【摘要】 电子供体甲基紫精及电子受体亚甲蓝均能强烈地抑制棕色固氮菌表达固氮活性。在固氮反应体系中,适当地增加氧分压能降低棕色固氮菌细胞内的还原电且提高固氮活性。但如氢分压高于0.25大气压时,反而会抑制菌体的固氮活性。更多还原

【Abstract】 Electronic donor methyl viologen and it receptor melhylene blue can inhibit strongly Azotobacter vinelandii to express its activities of nitrogen fixation. In the reaction system of fixation nitrogen, the reduction potential within the cell of Azotobacter vinelandii was shifted to negative by increasing suitable hydrogen atmosphere, which resulted in the activity of nitrogen fixation increased. Opposite, the activity was inhibited by increasing over 0.25 hydrogen atmosphere further.更多还原