Characteristics of a high-concentration-ammonium sulfate-requiring ammonia-oxidizing bacterium isolated from deodorization plants of chicken farms

Analysis of the C2H2 inhibition-based N2O production curve to characterize the N2O-reducing activity of denitrifying communities in soil

“…Inubushi et al (1999) reported an increase in N 2 O emission by NaCl amendment of soil (0.1 or 0.2 M) when the soil samples were incubated at 65% of the maximum water-holding capacity (MWHC) at 30°C for 1 month. Azam and Müller (2003) also found the stimulation of N 2 O emission by NaCl amendment of soil (0.3 or 0.6 mg g − 1 ) when the soil samples were incubated at 89% of MWHC and at 25°C for 50 h. Although the mechanism in the latter two cases was not discussed in their papers, ionic stress for denitrifying communities similar to those reported for nitrifying communities (NO 2 − production: Hatayama et al, 1999; NO 3 − production: eg. Sindhu and Cornfield, 1967;Yanai et al, 2004) could have taken place.…”

Effect of root exudates on growth of newly isolated nitrifying bacteria from barley rhizoplane

“…The effects of various media and their ammonium salt and nitrite concentrations on the growth of both strains were examined and compared with the effects on other strains. Nitrite production by strain PJA 1 was significant in the HEPES-medium, but low in the P-or PM-medium (Hatayama et al 1999) presumably due to inhibition by the high phosphate concentration in the latter. Strain PJA I produced the largest amount of nitrite when the basic ammonium sulfate concentration in the HEPESmedium was 30.3 mM.…”

<i>Nitrosomonas stercoris</i> sp. nov., a Chemoautotrophic Ammonia-Oxidizing Bacterium Tolerant of High Ammonium Isolated from Composted Cattle Manure

“…The temperature of the surface layer of the manure pile was 29°C. The following 2-(4-[hydroxyethyl]-1-piperazinyl) ethanesulfonic acid (HEPES)-trace elements medium modified from HEPES medium ( 9 ) was used for the cultivation of strain KYUHI-S T . The medium was composed of HEPES (11.92 g L −1 , 50 mM), KH 2 PO 4 (0.5 g L −1 ), NaHCO 3 (0.5 g L −1 ), MgSO 4 ·7H 2 O (0.1 g L −1 ), (NH 4 ) 2 SO 4 (2.5 g L −1 , equivalent to 38 mM NH 4 + ), CaCl 2 ·2H 2 O (5 mg L −1 ), EDTA-Fe (III) (1 mg L −1 ), 5 mL of bromothymol blue solution (bromothymol blue 1 mg mL −1 , Na 2 HPO 4 945 mg mL −1 , and K 2 PO 4 0.49 mg mL −1 in deionized water), and 5 mL of trace elements (NaMoO 4 ·2H 2 O 10 mg, MnCl 2 ·4H 2 O 20 mg, CoCl 2 ·6H 2 O 0.2 mg, CuSO 4 ·5H 2 O 2 mg, ZnSO 4 ·7H 2 O 10 mg, FeSO 4 ·7H 2 O 770 mg, and EDTA·2Na 1.03 g in 1,000 mL of deionized water).…”