Search Results - (Author, Cooperation:T. Ingram)

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  1. 1
    D. L. Mahler ; T. Ingram ; L. J. Revell ; J. B. Losos
    American Association for the Advancement of Science (AAAS)
    Published 2013
    Staff View
    Publication Date:
    2013-07-23
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Adaptation, Physiological ; Animals ; *Biological Evolution ; Islands ; Lizards/*classification/*genetics ; Phylogeny ; Selection, Genetic
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Ingram, T. Robert 〈Rev〉

    Washington, D.C. : Periodicals Archive Online (PAO)
    Published 1963
    Staff View
    ISSN:
    0018-7194
    Topics:
    Political Science
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:7604-1963-022-01-000025

    Articles: DFG German National Licenses
  3. 3
    Staff View
    ISSN:
    0003-2697
    Keywords:
    IgG ; albumin ; detergents ; electroimmunodiffusion ; immunoprecipitation ; quantitation
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0003-2697(83)90012-X

    Articles: DFG German National Licenses
  4. 4
    Ingram, T. J. ; Reid, J. B. ; Potts, W. C. ; Murfet, I. C.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1983
    Staff View
    ISSN:
    1399-3054
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Biology
    Notes:
    The highly active, polar gibberellin-like substance found in the apical region of shoots of tall (genotype Le) peas (Pisum sativum L.) is shown by combined gas chromatography-mass spectrometry (GC/MS) to be GA1. This substance is either absent or present at only low levels in dwarf (le) plants. Multiple ion monitoring (MIM) tentatively suggests that GA8 may also be present in shoot tissue of tall peas. Gibberellin A1 is the first 3 β-hydroxylated gibberellin positively identified in peas, and its presence in shoot tissue demonstrates the organ specificity of gibberellin production since GA1 has not been detected in developing seeds. Application of GA1 can mask the Le/le gene difference. However, whilst Le plants respond equally to GA20 and GA1, le plants respond only weakly to GA20, the major biologically active gibberellin found in dwarf peas. These results suggest that the Le gene controls the production of a 3 β-hydroxylase capable of converting GA20 to GA1. Further support for this view comes from feeds of [3H] GA20 to Le and le plants. Plants with Le metabolise [3H] GA20 to three major products whilst le plants produce only one major product after the same time. The metabolite common to Le and le plants co-chromatographs with GA29. The additional two metabolites in Le peas co-chromatograph with GA1 and GA8.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1399-3054.1983.tb06288.x

    Articles: DFG German National Licenses
  5. 5
    Ingram, T. J. ; Browning, G.
    Springer
    Published 1979
    Staff View
    ISSN:
    1432-2048
    Keywords:
    G2 Peas ; Gibberellin ; Photoperiod ; Pisum ; Seed development
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract When apical senescence in the genetic line of peas G2 was prevented by short days fruit development was also found to be retarded. The levels of GA20 and GA29 in cotyledons and pods grown under long or short days were measured by gas chromatography — mass spectrometry multiple ion monitoring using extracts derivatised with deuterated trimethylsilyl groups as internal standards. The levels of GA20 but not GA29, were increased by short days. Conventional gas chromatography — mass spectrometry showed that relative to GA29 the levels of GA19, the other GA identified in G2 cotyledons, were also increased in short days. The levels of GA20 in the pods were highest during the main phase of pod growth early in fruit development.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00380856

    Articles: DFG German National Licenses
  6. 6
    Ingram, T. J. ; Reid, J. B. ; MacMillan, J.
    Springer
    Published 1986
    Staff View
    ISSN:
    1432-2048
    Keywords:
    Gibberellin metabolism ; Internode growth ; Pisum (gibberellin metabolism)
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract The metabolism and growth-promoting activity of gibberellin A20 (GA20) were compared in the internode-length genotypes of pea, na le and na Le. Gibberellin A29 and GA29-catabolite were the major metabolites of GA20 in the genotype na le. However, low levels of GA1, GA8 and GA8-catabolite were also identified as metabolites in this genotype, confirming that the le allele is a ‘leaky’ mutation. Gibberellin A20 was approximately 20 to 30 times as active in promoting internode growth of genotype na Le as of genotype na le. However, the levels of the 3β-hydroxylated metabolite of GA20, GA8 (2β-hydroxy GA1), were similar for a given growth response in both genotypes. In each case a close linear relationship was observed between internode growth and the logarithm of GA8 levels. A similar relationship was found on comparing GA20 metabolism in the three genotypes le d, le and Le. The former mutation results in a more severe dwarf phenotype than the le allele (which has previously been shown to reduce the 3β-hydroxylation of GA20 to GA1). These results indicate that GA20 has negligible intrinsic activity and support the contention that GA1 is the only GA active per se in promoting stem growth in pea.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00392370

    Articles: DFG German National Licenses
  7. 7
    Staff View
    ISSN:
    0884-3996
    Keywords:
    Luminometer ; evaluation ; rapid microbiology ; ATP assay ; firefly luciferase ; photometer ; radiometer ; comparison ; Chemistry ; Biochemistry and Biotechnology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Biology
    Chemistry and Pharmacology
    Notes:
    An assessment has been carried out of the relative performance of ten instruments for quantification of adenosine triphosphate (ATP) by the firefly luciferase assay. The instruments evaluated were Amersham Amerlite Analyser, Dynatech Tube Luminometer, Dynatech Multiplate Luminometer, Dynatech Camera Luminometer, Hamilton Lumicon, LKB 1250 Luminometer, LKB 1251 Luminometer, Lumac Biocounter M2010A, Turner 20 TD Luminometer and a prototype version of the CLEAR Speed Tech 2000. An 800-fold difference in sensitivity was found between the most sensitive (Lumac, Turner) and the least sensitive (Dynatech Tube) of the conventional instruments. The Dynatech Camera Luminometer which worked on a completely different principle to the other instruments was about 5000 times less sensitive than the best of the photomultiplier tube instruments. The relative sensitivity of the instruments was maintained regardless of whether solutions of ATP in water or trichloroacetic acid extracts of bacteria were analysed. An analysis of 960 ATP bioluminescence assays showed that data obtained from such measurements are normally distributed.
    Additional Material:
    5 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/bio.1170030307

    Articles: DFG German National Licenses