Screening of novel cellulose-degrading bacterium and its application to denitrification of groundwater.
To establish an environmentally friendly groundwater bioremediation process using a cellulose carrier combined with cellulose-utilizing, denitrifying microorganisms, a novel psychrophilic bacterium, designated CL-5, which can degrade a commercial-based cellulose carrier as the sole carbon source, was screened. Since the denitrification capability of CL-5 is low, complex microbial systems were constructed together with other denitrifying bacteria designated NR-1 and NR-2 that were also isolated from soil. The nitrate-reducing activities of mixed cultures were much higher than those of the pure cultures of CL-5, NR-1 and NR-2. The highest N(2)O and N(2) formation activities were observed in the mixed culture of CL-5+NR-2.
Nakajima-Kambe
Toshiaki
T
Okada
Norihisa
N
Takeda
Mie
M
Akutsu-Shigeno
Yukie
Y
Matsumura
Masatoshi
M
Nomura
Nobuhiko
N
Uchiyama
Hiroo
H
D001673:Biodegradation, Environmental; D002482:Cellulose / Q000378:metabolism*; D020633:Cellvibrio / Q000302:isolation & purification* / Q000378:metabolism*; D017672:Nitrogen Compounds / Q000378:metabolism*; D009586:Nitrogen Fixation / Q000502:physiology; D011551:Pseudomonas fluorescens / Q000302:isolation & purification* / Q000378:metabolism*; D012988:Soil Microbiology; D013045:Species Specificity; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000378:metabolism; D018508:Water Purification / Q000379:methods
D017672:Nitrogen Compounds; D014874:Water Pollutants, Chemical; D002482:Cellulose