dc.contributor.advisor | Leung, Kam Tin | |
dc.contributor.author | Moore, Michael Neil | |
dc.date.accessioned | 2017-06-07T20:09:43Z | |
dc.date.available | 2017-06-07T20:09:43Z | |
dc.date.created | 2004 | |
dc.date.issued | 2004 | |
dc.identifier.uri | http://knowledgecommons.lakeheadu.ca/handle/2453/3285 | |
dc.description.abstract | The effect of carbon-starvation on the stress resistance responses of a p-nitrophenol
degrading Moraxella strain was examined in both, buffer and river water
samples. The Moraxella strain showed optimal stress resistance responses in a minimal
salt buffer when carbon-starved for 1-2 days. In the buffer system, the 1- and 2-day
carbon-starved Moraxella cultures survived about 150-, 200- and 100-foid better than the
non-starved cultures when exposed to 43.5°C, 2.7M NaCI and 500 " H2O2 for 4 hours,
respectively. A green fluorescent protein gene- labelled derivative of the Moraxella
strain was used to examine the stress resistance responses of the bacterium in natural
river water microcosms. The carbon-starved gfp-labelled Moraxella strain also showed
stress resistant responses against heat, osmotic and oxidative stresses in the river water
samples. Despite the stress tolerant capability of the carbon-starved gfp-labelled
Moraxella cells, they did not exhibit any survival advantage over their non-starved
counterparts when inoculated into river water microcosms and incubated at 10° or 22°C
for fourteen days. | |
dc.language.iso | en_US | |
dc.subject | Moraxella biodegradation | |
dc.subject | Bacterial starvation and survival | |
dc.subject | Carbon-starvation and stress-resistance | |
dc.subject | Environmental contamination | |
dc.subject | Bioremediation | |
dc.title | Effect of carbon-starvation on the survival of and PNP degradation by a Moraxella strain | |
dc.type | Thesis | |
etd.degree.name | Master of Science | |
etd.degree.level | Master | |
etd.degree.discipline | Biology | |
etd.degree.grantor | Lakehead University | |