Hidetoshi Okuyama

TL;DR: Comparisons of the activities and diversities of ammonia-oxidizing bacteria in the root environment of different cultivars of rice indicated marked differences despite identical environmental conditions during growth, suggesting varietal differences in the composition and activity of root-associated AOB populations may result from microscale differences in O2 availability.

TL;DR: Two strains, WatG and HokM, which were identified as new strains of Pseudomonas aeruginosa and Serratia marcescens species, respectively, showed relatively high capacity and wide spectrum to degrade the hydrocarbons in gasoline, kerosene, diesel, and lubricating oil.

TL;DR: The thermoinstability suggests that the catalase from strain S-1(T) should be categorized as a psychrophilic enzyme, and the results obtained suggest that these unique properties of the enzyme are in accordance with the environmental conditions under which the microorganism lives.

TL;DR: Results suggest that 16:1(9c) is converted to 16:2(9t) by the cis/trans isomerization of the double bond in the fatty acid, a possible strategy for adaptation by bacteria to changes in temperature.

TL;DR: The presence of active AOB in the root environment predicts that a significant proportion of the N taken up by certain rice cultivars is in the form of NO3−-N produced by the AOB.