The invention discloses a novel salt-tolerant denitrifying bacterium and an application thereof. The novel salt-tolerant denitrifying bacterium is named as Marinobacter sp. JB05H06, and the preservation number of the strain is GDMCC No:60752. The Marinobacter sp. JB05H06 is separated from marine surficial sediment in Antarctic Ross Sea (E173 DEG 11.4' S74 DEG 45.6'), is a novel salt-tolerant strain with heterotrophic nitrification and aerobic denitrification nitrogen removal functions, and has a very high removal effect on nitrate nitrogen and/or ammonia nitrogen in seawater. Therefore, the Marinobacter sp. JB05H06 can be applied to nitrogen treatment and water quality improvement of mariculture wastewater, and has huge potential in practical application of protecting the ecological environment and guaranteeing healthy growth of aquatic animals.

Novel salt-tolerant denitrifying bacterium and application thereof

The invention discloses a Marinobacter strain with aerobic denitrification capability and application thereof, and relates to the Marinobacter. The Marinobacter sp.1A14215 is separated from deep sea water with the depth of 4432m in South Indian Ocean. The Marinobacter sp. 1A14215 can perform denitrification nitrogen removal by taking nitrate and nitrite as unique nitrogen sources respectively under aerobic and anaerobic conditions, and a denitrification end product is N2 and N2O is not released. The denitrification action is carried out in the nitrogen-containing simulated wastewater, and thecarbon sources of the nitrogen-containing simulated wastewater are respectively sodium citrate, sodium acetate, sodium lactate, sodium succinate, sodium propionate, glycerol and maltose. The Marinobacter sp.1A14215 can be applied to biological denitrification of the nitrogen-containing wastewater and sea freshwater aquaculture.

Li Jianyang

Papers

Marinobacter strain with aerobic denitrification capability and application thereof