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  1. No Access

    Chapter

    Recent Advances in the Preparation and Use of Perfluorodecalin Emulsions for Tissue Perfusion

    At the present time there are no perfusion media, aside from those containing red blood cells, which carry sufficient oxygen to maintain organs having a high QO2. Resort is made to hypothermia, hyperbaria, and pe...

    Leland C. Clark Jr., Samuel Kaplan, Fernando Becattini… in Oxygen Transport to Tissue (1973)

  2. No Access

    Article

    In vivo translation of amber and ochre codons in Escherichia coli

    By making certain assumptions, we have provided evidence which indicates that: amber and ochre codons function in vivo, the bulk of the E. coli mRNA is polycistronic, intercistronic space may correspond to no mor...

    Samuel Kaplan in Molecular and General Genetics MGG (1973)

  3. No Access

    Article

    Expression and stability of Escherichia coli F-prime factors in Proteus mirabilis

    The expression and stability of Escherichia coli F-primes in Proteus mirabilis is examined. It is possible to consecutively introduce, and stably maintain, the DNA of several E. coli F-primes in P. mirabilis in t...

    Edward A. Morgan, Samuel Kaplan in Molecular and General Genetics MGG (1977)

  4. No Access

    Article

    Changes in Rhodopseudomonas sphaeroides isoaccepting phenylalanyl-tRNA species during transitions from chemoheterotrophic to photoheterotrophic growth

    A new iso-accepting tRNAphe from extracts of chemoheterotrophic and photoheterotrophic cells of Rhodopseudomonas sphaeroides has been identified by both BDEAE cellulose and RPC-5 chromatography. Rechromatography ...

    William D. Shepherd, Samuel Kaplan in Archives of Microbiology (1978)

  5. No Access

    Chapter

    The Lactose Carrier of Escherichia Coli Functionally Incorporated in Rhodopseudomonas Sphaeroides Obeys the Regulatory Conditions of the Phototrophic Bacterium

    Regulation of solute transport in Rps. sphaeroides is such that the presence of a proton motive force by itself is not enough for solute transport to take place. In addition linear or cyclic electron transfer is ...

    Marieke G. L. Elferink, Klaas J. Hellingwerf… in Advances in Photosynthesis Research (1984)

  6. No Access

    Article

    Structural gene regions of Rhodobacter sphaeroides involved in CO2 fixation

    From studies conducted in both our laboratory and by Gibson, Tabita and colleagues, as well as drawing on the recent studies with Alcaligenes eutrophus, we describe two genetic regions which have been identified ...

    Balil L. Hallenbeck, Samuel Kaplan in Photosynthesis Research (1988)

  7. No Access

    Article

    The puf operon region of Rhodobacter sphaeroides

    The puf operon of the purple nonsulfur photosynthetic bacterium, Rhodobacter sphaeroides, contains structural gene information for at least two functionally distinct bacteriochlorophyll-protein complexes (light h...

    Timothy J. Donohue, Patricia J. Kiley, Samuel Kaplan in Photosynthesis Research (1988)

  8. No Access

    Chapter

    Post-transcriptional Control of the Expression of Photosynthetic Complex Formation in Rhodobacter sphaeroides

    Rhodobacter sphaeroides is a facultative photoheterotroph, able to grow on a variety of reduced organic carbon sources either in the presence or absence of O2, in either the light or dark. When g...

    Samuel Kaplan in Molecular Biology of Membrane-Bound Complexes in Phototrophic Bacteria (1990)

  9. No Access

    Chapter

    Mutation Analysis and Regulation of PpsR

    In the presence of oxygen, Rhodobacter sphaeroides derives energy from aerobic respiration. When oxygen tension decreases below certain threshold levels, it develops in-tracytoplasmic membrane vesicles which hous...

    Mark Gomelsky, Hye-Joo Lee, Samuel Kaplan in The Phototrophic Prokaryotes (1999)

  10. No Access

    Article

    The home stretch, a first analysis of the nearly completed genome of Rhodobacter sphaeroides 2.4.1

    Rhodobacter sphaeroides 2.4.1 is an α-3 purple nonsulfur eubacterium with an extensive metabolic repertoire. Under anaerobic conditions, it is able to grow by photosynthesis, respiration ...

    Chris Mackenzie, Madhusudan Choudhary, Frank W. Larimer… in Photosynthesis Research (2001)

  11. No Access

    Article

    Photosynthesis genes and their expression in Rhodobacter sphaeroides 2.4.1: a tribute to my students and associates

    This minireview traces the photosynthesis genes, their structure, function and expression in Rhodobacter sphaeroides 2.4.1, as applied to our understanding of the inducible photosynthetic intracytoplasmic membran...

    Samuel Kaplan in Photosynthesis Research (2002)

  12. No Access

    Chapter

    Photosynthesis genes and their expression in Rhodobacter sphaeroides 2.4.1: a tribute to my students and associates

    This minireview traces the photosynthesis genes, their structure, function and expression in Rhodobacter sphaeroides 2.4.1, as applied to our understanding of the inducible photosynthetic intracytoplasmic membran...

    Samuel Kaplan in Discoveries in Photosynthesis (2005)

  13. No Access

    Chapter

    Purple Bacterial Genomics

    Genomes of several purple bacteria have recently been sequenced and many of these genomes have been fully annotated and are now available on either NCBI or/and other publicly accessible databases. This chapter...

    Madhusudan Choudhary, Chris Mackenzie… in The Purple Phototrophic Bacteria (2009)