Claudia Goyer

TL;DR: In this paper, the influence of simple (glucose) and complex (red clover and barley residue) carbon sources on the amount of denitrification, N2O molar ratio, and abundance of soil total bacterial and denitrifier communities was investigated using repacked soil cores.

TL;DR: The targeted denitrifier communities responded similarly to the different plant residues under the conditions tested despite changes in the quality of organic C and different C:N ratios.

TL;DR: Levels of cnorB and nirS expression were relatively insensitive to pH values over the range of pH 6 to 8 but were substantially reduced at pH 5, whereas gene expression was sensitive to temperature, with induction and time to achieve maximum gene expression delayed as the temperature decreased from 30°C.

TL;DR: In general, the targeted denitrifier community abundance did not change between agricultural and riparian zones, however, nosZ gene expression was greater in the riparian zone than the agricultural zone and the nirK-gene-bearing community structure was more responsive to change between the two ecosystems.

TL;DR: Gene numbers were higher for the Hp than the H location for the nosZ and nirK communities and for the cnorBP community on individual dates, presumably indicating an effect of the plant on denitrifier abundance, as well as the effect of spatial location on abundance.