The positive effects of Mn²⁺ on nitrogen use and surfactin production by Bacillus subtilis ATCC 21332

Xiangfeng HuangCollege of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment of the Ministry of Education, the Collaborative Innovation Center of Advanced Technology and Equipment for Water Pollution Control, the Collaborative Innovation Center for Regional Environmental Quality, Tongji University, Shanghai, ChinaView further author information

Jia'nan LiuCollege of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment of the Ministry of Education, the Collaborative Innovation Center of Advanced Technology and Equipment for Water Pollution Control, the Collaborative Innovation Center for Regional Environmental Quality, Tongji University, Shanghai, ChinaView further author information

Yihan WangCollege of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment of the Ministry of Education, the Collaborative Innovation Center of Advanced Technology and Equipment for Water Pollution Control, the Collaborative Innovation Center for Regional Environmental Quality, Tongji University, Shanghai, ChinaView further author information

Jia LiuCollege of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment of the Ministry of Education, the Collaborative Innovation Center of Advanced Technology and Equipment for Water Pollution Control, the Collaborative Innovation Center for Regional Environmental Quality, Tongji University, Shanghai, ChinaView further author information

Lijun LuCollege of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment of the Ministry of Education, the Collaborative Innovation Center of Advanced Technology and Equipment for Water Pollution Control, the Collaborative Innovation Center for Regional Environmental Quality, Tongji University, Shanghai, ChinaCorrespondence[email protected]
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Figures & data

Figure 1. Biomass and surfactin production in media with different concentrations of Mn²⁺. Note: Biomass concentration (a); surfactin concentration (b).

Figure 1. Biomass and surfactin production in media with different concentrations of Mn2+. Note: Biomass concentration (a); surfactin concentration (b).

Figure 2. Usage of glucose in media with different concentrations of Mn²⁺.

Figure 2. Usage of glucose in media with different concentrations of Mn2+.

Figure 3. Changes in the concentration of ammonium nitrate in media with different concentrations of Mn²⁺.

Figure 3. Changes in the concentration of ammonium nitrate in media with different concentrations of Mn2+.

Figure 4. Changes in NR activity over time in media with different concentrations of Mn²⁺. Note: NR activity is expressed as micromoles of NADH oxidized per minute per milligram of protein.

Figure 4. Changes in NR activity over time in media with different concentrations of Mn2+. Note: NR activity is expressed as micromoles of NADH oxidized per minute per milligram of protein.

Figure 5. Correlation of NR activity and usage of nitrate nitrogen. Note: NR activity is expressed as micromoles of NADH oxidized per minute per milligram of protein.

Figure 6. Changes in GS and GOGAT activities over time in media with different concentrations of Mn²⁺. Note: GS activity is expressed as absorption values increased per hour per milligram of protein. GOGAT activity is expressed as micromoles of NADH oxidized per minute per milligram of protein.

The positive effects of Mn²⁺ on nitrogen use and surfactin production by Bacillus subtilis ATCC 21332

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The positive effects of Mn2+ on nitrogen use and surfactin production by Bacillus subtilis ATCC 21332

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The positive effects of Mn²⁺ on nitrogen use and surfactin production by Bacillus subtilis ATCC 21332