Browsing Masters Theses by Subject "Soil microbiology"

Now showing items 1-8 of 8

Effect of H₂ on soil bacterial community structure and gene expression

Zou, Yinan (Halifax, N.S. : Saint Mary's University,, 2012)

Previous studies have showed that H[subscript 2] evolved from HUP- legume nodules is oxidized by rhizospheric microorganisms and alters the soil microbial diversity in rhizosphere. This H[subscript 2] oxidation is linked ...
Effect of H₂ on soil bacterial community structure and soil denitrifier population

He, Xiang (Nancy) (Halifax, N.S. : Saint Mary's University, 2010)

Previous studies have shown that H₂ from HUPˉ legume nodules promotes plant growth and enhances N₂O emission from soil, possibly as the result of hydrogen-induced variation of rhizobacterial community structure. Using ...
H2-oxidizing, plant growth promoting rhizobacteria as seed inoculants for barley

Golding, Amber-Leigh (Halifax, N.S. : Saint Mary's University, 2009)

The persistence of allegedly inefficient hydrogenase uptake negative (HUP⁻) legume-rhizobia associations may be accounted for by the beneficial effects of hydrogen release to soil, including the stimulation of H₂-oxidizing, ...
Identification of major increased T-RFs in T-RFLP profiles of hydrogen treated soil samples using molecular fingerpr[in]ting techniques

He, Yue (Lanie) (Halifax, N.S. : Saint Mary's University, 2008)

In a previous study, twenty hydrogen-oxidizing bacterial strains showing positive plant root elongation effects were isolated. However, T-RFLP work showed that none of these isolates contributed to hydrogen induced TRF ...
Isolation and characterization of H₂ oxidizing bacteria in H₂ treated soil and soil adjacent to Hup⁻ soybean nodules

Maimaiti, Jiamila (Halifax, N.S. : Saint Mary's University, 2005)

Previous studies have shown that the hydrogen (H₂) gas evolved from legume nodules inoculated by hydrogen releasing (Hup⁻) rhizobium strains contributes to growth promotion of subsequent crop plants by altering the populations ...
Mechanisms of isolated hydrogen-oxidizing bacteria in plant growth promotion and effects of hydrogen metabolism on rhizobacterial community structure

Zhang, Ye (Halifax, N.S. : Saint Mary's University, 2006)

Previous studies have showed that the hydrogen gas evolved from Hup - legume nodules promotes plant growth and increases the hydrogen uptake rate of soils adjacent to Hup - nodules. This may be resulted from hydrogen-induced ...
The potential growth promotion on barley and changes in rhizosphere bacterial community structure introduced by HUP- nodules of different pulse crops

Yang, Xuan (Halifax, N.S. : Saint Mary's University, 2012)

In this study, all inoculated pulse crops formed nodules that release H2 to the surrounding soil (HUP- nodule). The soil around HUP- nodules showed a higher H2 uptake rate and CO2 fixation. The barley inoculated with soil ...
Quantification of bacterial RubisCO genes and their expression in soil adjacent to H[subscript 2] releasing legume nodules

Flynn, Bryan C. J. (Halifax, N.S. : Saint Mary's University, 2011)

The release of H[subscript 2] from legume nodules has many positive effects on soil health; H[subscript 2] has been shown to increase CO[subscript 2] fixation in soils. RubisCO plays an important role in bacterial CO[subscript ...