Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"Nitrogen fixing microorganisms"”.
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Diazotroph Assemblages of Salt Marsh Plants Growing Along An Environmental Gradient: Assemblage Composition and Responses to Environmental Conditions
… coastal salt marshes of the southeastern US are nitrogen-limited despite being among the most productive ecosystems known. Nitrogen fixation (diazotrophy) by the nitrogen-fixing microorganisms in these ecosystems is one of the primary sources of `new' nitrogen and is therefore ecologically …
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The detection of plasmid transfer genes in Rhizobium species : a thesis presented in partial fulfilment of the requirement for the degree Master of Science in Microbiology at Massey University, New Zealand
In order that Rhizobium tra genes responsible for Sym plasmid transfer might be found, DNA probes were constructed from Agrobacterium tra genes. Three probes were constructed from DNA containing;- 1) traR, a gene which regulates other tra genes on the Agrobacterium tumefaciens plasmid pTiC58, 2) an …