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Assessing the nitrogen processes of ...

The American University.

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Assessing the nitrogen processes of a freshwater tidal estuary through microbial community and nutrient composition.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Assessing the nitrogen processes of a freshwater tidal estuary through microbial community and nutrient composition./
作者:	Fortunato, Caroline S.
面頁冊數:	64 p.
附註:	Adviser: Karen Bushaw-Newton.
Contained By:	Masters Abstracts International46-01.
標題:	Biogeochemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1445559
ISBN:	9780549147312

Assessing the nitrogen processes of a freshwater tidal estuary through microbial community and nutrient composition.
Fortunato, Caroline S.

Assessing the nitrogen processes of a freshwater tidal estuary through microbial community and nutrient composition. - 64 p.

Adviser: Karen Bushaw-Newton.

Thesis (M.S.)--The American University, 2007.

Estuaries mitigate the effects of anthropogenic pollution, specifically nitrogen compounds. Critical to estuarine function is the composition of the microbial community. I assessed the temporal and spatial changes in microbial community diversity and nutrient concentrations of Jug Bay, an estuary of the Patuxent River, MD. I hypothesized that the diversity of the microbial community, with respect to the nitrogen cycle, will vary depending on vegetation and season. Sediment and water column samples were taken from five different vegetated sites during May, July, and October 2006. Denaturing gradient gel electrophoresis (DGGE) assessed community diversity using 16S rRNA primers for nitrifyers and the functional gene primers nirK and nosZ for denitrifiers. DGGE results show unique microbial strains to each vegetated site and strains that are present at all sites. Nitrifyer diversity was seasonally dependent while denitrifier diversity was spatially dependent. This research indicates a complex interaction between microbial communities and environmental conditions.

ISBN: 9780549147312Subjects--Topical Terms:

545717
Biogeochemistry.

Assessing the nitrogen processes of a freshwater tidal estuary through microbial community and nutrient composition.
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502 $a Thesis (M.S.)--The American University, 2007.
520 $a Estuaries mitigate the effects of anthropogenic pollution, specifically nitrogen compounds. Critical to estuarine function is the composition of the microbial community. I assessed the temporal and spatial changes in microbial community diversity and nutrient concentrations of Jug Bay, an estuary of the Patuxent River, MD. I hypothesized that the diversity of the microbial community, with respect to the nitrogen cycle, will vary depending on vegetation and season. Sediment and water column samples were taken from five different vegetated sites during May, July, and October 2006. Denaturing gradient gel electrophoresis (DGGE) assessed community diversity using 16S rRNA primers for nitrifyers and the functional gene primers nirK and nosZ for denitrifiers. DGGE results show unique microbial strains to each vegetated site and strains that are present at all sites. Nitrifyer diversity was seasonally dependent while denitrifier diversity was spatially dependent. This research indicates a complex interaction between microbial communities and environmental conditions.
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