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Filtering by: Creator Payne, Meredith C. Resource Type Masters Thesis Subject Nitrogen -- Fixation

Evaluation of a Rhizobium meliloti transconjugant for increased nodulation and biological nitrogen fixation in alfalfa

Creator:

Mao, Meiyu

Abstract:

Agrobacterium rhizogenes has been shown to cause root proliferation and increased water use efficiency in certain woody dicots. Root proliferation may be desirable in herbaceous legumes as a means of increasing potential sites for infection by Rhizobium species and subsequent nodulation and nitrogen fixation. Thus, A. rhizogenes was used to...

Resource Type:

Masters Thesis

Full Text:

25 to 30 C on complex media. They often contain poly-beta-hydroxybutrate storage granules. A
A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Creator:

Gradoville, Mary Rose

Abstract:

Biological di-nitrogen (N₂) fixation is a key process in open-ocean ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of primary productivity and carbon (C) drawdown. Recent laboratory studies have shown that elevated pCO₂ enhances the rate of N₂ fixation by select laboratory isolates...

Resource Type:

Masters Thesis

Full Text:

. Marine ecology progress series 236:37-43. Tortell, P. D., C. D. Payne, Y. Li, S. Trimborn, B. Rost, W
Evaluation of Rhizobium strains with three Mediterranean forage legumes for biological nitrogen fixation

Creator:

Streeter, Donald J.

Abstract:

Centuries of continuous grain cropping in northern Africa have reduced N levels in soils to a degree such that agricultural production is now largely dependent upon nitrogen fertilizer. Through the identification of highly effective legume and Rhizobium strain combinations, the production of protein-rich livestock forage and green manure can be...

Resource Type:

Masters Thesis

Full Text:

amount of C necessary for the assimilation of soil N (Atkins (1984) estimated that 3 to 6 grams of C are