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Full-Text Articles in Molecular Biology

Characterization Of Photosynthetic Reaction Centers From Bradyrhizobium Strain Btai 1, Isaac P. Forquer Jan 2005

Characterization Of Photosynthetic Reaction Centers From Bradyrhizobium Strain Btai 1, Isaac P. Forquer

Browse all Theses and Dissertations

Photosynthetic rhizobia have been studied for about 15 years now. They are now considered to be metabolically aligned with a relatively recently discovered group of bacteria, the anoxygenic aerobic phototrophs (AAP’s).Rhizobia form symbiotic relationships with plants from the Fabaceae family. Photosynthetic rhizobia not only nodulate the roots, as most other rhizobia do, but they also form nodules on the stems of certain leguminous plants. The plant provides carbon to the bacteria and the bacteria provides the plant with soluble nitrogen fixed from the biologically inert but abundant atmospheric N2. A key question regarding photosynthetic rhizobia and other AAP’s derives from …


Genetic Analysis Of Chlorophyll Biosynthesis, David W. Bollivar, Jon Y. Suzuki, Carl E. Bauer Dec 1996

Genetic Analysis Of Chlorophyll Biosynthesis, David W. Bollivar, Jon Y. Suzuki, Carl E. Bauer

David Bollivar

During this decade, there have been major advancements in the understanding of genetic loci involved in synthesis of the family of Mg-tetrapyrroles known as chlorophylls and bacteriochlorophylls. Molecular genetic analysis of Mg-tetrapyrrole biosynthesis was initiated by the performance of detailed sequence and mutational analysis of the photosynthesis gene cluster from Rhodobacter capsulatus. These studies provided the first detailed understanding of genes involved in bacteriochlorophyll a biosynthesis. In the short time since these studies were initiated, most of the chlorophyll biosynthesis genes have been identified by virtue of their ability to complement bacteriochlorophyll a biosynthesis mutants as well as by sequence …