Stadler Genetics Symposia, volume 08, 1976 (MU)

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https://hdl.handle.net/10355/66519

Contents of volume 8

Acknowledgments
Prolegomena
Announcement of the E. R. Sears Fund
Contents
List of Participants
Schwartz, Drew: REGULATION OF ALCOHOL DEHYDROGENASE GENES IN MAIZE
Drake, John W.: MUTAGENIC MECHANISMS IN BACTERIOPHAGE T4
Demain, Arnold L.: GENETIC REGULATION OF FERMENTATION ORGANISMS
Sehgal, O. P. and Hsu, C. H.: RNA : PROTEIN AND PROTEIN: PROTEIN INTERACTIONS IN THE VIRIONS OF SOUTHERN BEAN MOSAIC VIRUS
Carrel, James E.: APHRODISIACS AND ANAPHRODISIACS: BETTER LOVING THROUGH CHEMISTRY
Loeblich, Alfred R. III: DINOFLAGELLATE GENETICS AND DNA CHARACTERIZATION
Apirion, David: GENETIC APPROACHES TO THE STUDY OF RIBOSOMES
Pettijohn, David E.: DNA PACKAGING IN ISOLATED BACTERIAL NUCLEOIDS
Cerami, Anthony: THE DEVELOPMENT OF NEW DRUGS FOR GENETIC DISEASES
Cumulative Contents of the STADLER GENETICS SYMPOSIA

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Stadler Genetics Symposia, volume 08, 1976 : Preliminaries and back matter
(University of Missouri, Agricultural Experiment Station, 1976) Stadler Genetics Symposium (8th : 1976 : Columbia, Missouri)
RNA : protein and protein : Protein interactions in the virions of southern bean mosaic virus : (isometric plant viruses, stabilizing interactions, capsid structure)
(University of Missouri, Agricultural Experiment Station, 1976) Sehgal, O.P.; Hsu, C.H.; Stadler Genetics Symposium (8th : 1976 : Columbia, Missouri)
Virions of southern bean mosaic virus (SBMV), a small RNA-containing isometric plant virus, are stabilized with strong linkages between the coat protein subunits mediated through divalent metal ions (magnesium, calcium) and hydrophobic interactions. Virion treatments interfering with these inter-subunit linkages markedly alter the conformation and stability of the SBMV capsid. The virion capsid is composed of the entire complement of the viral protein, including a small proportion of stable coat protein dimers formed with covalent linkages between the epsilon-amino groups of the lysyl residues. The viral RNA is located within the capsid but 'loosely' contacts only one-third of the total coat protein. A tentative structural model of SBMV virions based upon physico-chemical and morphological considerations is proposed.
Regulation of alcohol dehydrogenase genes in maize
(University of Missouri, Agricultural Experiment Station, 1976) Schwartz, Drew; Stadler Genetics Symposium (8th : 1976 : Columbia, Missouri)
Alcohol dehydrogenase mutants can be selectively isolated in maize with great efficiency. Structural gene and regulatory mutants have been characterized biochemically, immunologically and genetically. The alcohol dehydrogenase linked dual regulatory system. This type of genetic control provides clues to mechanisms of genes are under the control of differentiation.
DNA packaging in isolated bacterial nucleoids : (chromosomes, DNA tertiary structure, nucleoids, DNA folding, DNA supercoiling, nascent RNA, membrane-DNA)
(University of Missouri, Agricultural Experiment Station, 1976) Pettijohn, David E.; Stadler Genetics Symposium (8th : 1976 : Columbia, Missouri)
Properties of nucleoids isolated from Escherichia coli are described. Experiments which investigate the organization of DNA folding and supercoiling in the isolated chromosome are reviewed, and evidence is discussed suggesting a role for certain proteins and nascent RNA molecules in stabilizing the condensed DNA. A model of the conformational organization of the packaged DNA is presented.
Dinoflagellate genetics and DNA characterization : (dinoflagellates, evolution, nucleus, DNA, genetics, mesocaryota)
(University of Missouri, Agricultural Experiment Station, 1976) Loeblich, Alfred R., III; Stadler Genetics Symposium (8th : 1976 : Columbia, Missouri)
Nuclear features of dinoflagellates that were used origin ally to support the Mesocaryota concept are reviewed. Although dinoflagellates possess some procaryotic nuclear features, the remainder of the cell is obviously eucaryotic. The fibrillary diameter of the chromatin, low level of chromosomal basic proteins, membrane attachment of the chromosomes and swirl pattern seen in sectioned chromosomes all support a procaryotic affinity. On the other hand, the repeated and highly complex DNA, S-phase of DNA synthesis, and the presence of basic proteins and extra nuclear spindle support the contention that dinoflagellates are eucaryotic. The possession of both procaryotic and eukaryotic nuclear features indicate that this group evolved relatively early in biological time. A review is made of recent attempts to analyze the genetics of this algal group. Although incomplete, these studies have suggested that dinoflagellates have an unusual meiotic process.

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