Community structure of ammonia-oxidizing bacteria under long-term application of mineral fertilizer and organic manure in a sandy loam soil

Article Abstract:

The effects of mineral fertilizer (NPK) and organic manure on the community structure of soil ammonia-oxidizing bacteria (AOB) are examined in a long-term fertilizer experiment. The results have shown that long-term application of N fertilizers might result in increased soil nitrification potential and the ammonia-oxidizing bacteria (AOB) community shifts in soil.

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Heterologous leaky production of transglutaminase in Lactococcus lactis significantly enhances the growth performance of the host

Article Abstract:

A novel strategy is described to improve the growth performance of Lactococcus lactis by heterologous production of food-grade transglutaminase. The results have provided a novel way to boost the growth yield of Lactococcus lactis, which is a vital step for the purposes of producing proteins of commercial interest using Lactococcus lactis as a host.

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Glutathione protects lactococcus lactics against acid stress

Article Abstract:

The glutathione (GSH) imported by L. lactis subsp. Cremoris SK11 or produced by engineered L. lactis subsp.cremoris NZ9000 protects strains against a long term mild acid challenge and a short-term severe acid challenge. This shows that GSH protect a gram-positive bacterium against acid stress.

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