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  • 1
    Electronic Resource
    Electronic Resource
    Isozyme Analysis of Some Male Sterile Lines in Sorghum bicolor (L.) Moench (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 98 (1987), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A comparative study of peroxidase and acid phosphatase of anthers was carried out on sorghum to characterize five male steriles and their maímainers. Differences in presence/absence and intensity of bands were observed for the isozyme patterns of all the male steriles and their corresponding maintainers. The better expression of enzymes in sterile anthers emphasized the role they play in breaking down various metabolites that are otherwise important for formation of fertile anthers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1987.tb01140.x
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  • 2
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    Mortgage Rates and the Pricing of Residential Housing (1988)
    New Orleans, La. : Periodicals Archive Online (PAO)
    Review of financial economics. 23:2 (1988:Spring) 63 
    Details
    ISSN: 1058-3300
    Topics: Economics
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:c381-1988-023-02-000006
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  • 3
    Electronic Resource
    Electronic Resource
    Characterization of the nuclear gene encoding chloroplast ribosomal protein S13 from Arabidopsis thaliana (1995)
    Springer
    Current genetics 28 (1995), S. 346-352 
    Details
    ISSN: 1432-0983
    Keywords: Arabidopsis thaliana ; Ribosomal protein ; Chloroplast S13 ; Mitochondrial S13
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have characterised a cDNA clone and a nuclear gene encoding the chloroplast 30 s ribosomal protein S13 from Arabidopsis thaliana. The identification is based on the high similarity of the predicted amino-acid sequence with eubacterial S13 protein sequences, and immunodetection of a 14.5-kDa chloroplast ribosomal polypeptide using antibodies raised against the polypeptide produced from part of the cDNA expressed in bacteria. The predicted amino-acid sequence contains an N-terminal extension which has several features characteristic of chloroplast transit peptides. Experiments suggest there is a single copy of this gene in A. thaliana and multiple copies in Brassica species. The origin of the mitochondrial S13 polypeptide in crucifers is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00326432
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  • 4
    Electronic Resource
    Electronic Resource
    RNA editing of a chimeric maize mitochondrial gene transcript is sequence specific (1993)
    Springer
    Current genetics 23 (1993), S. 154-159 
    Details
    ISSN: 1432-0983
    Keywords: C male-sterile cytoplasm ; Cytoplasmic male sterility ; cms-C ; atp6
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract RNA editing was analysed in the mitochondrial ATPase complex subunit 6 gene (atp6) transcripts of the C male-sterile cytoplasm (cms-C) of maize. The only copy of atp6 in cms-C, designated C-atp6, is a triple gene fusion product comprised of DNA sequences derived from atp9, atp6, and an unknown origin. Sequences of cDNAs revealed 19 C to U alterations resulting in 16 amino acid residue changes compared to the genomic sequence. The only C to U edit in the 39-nucleotide sequence similar to atp9 was comparable to a change in the complete atp9 mRNAs of Petunia, Oenothera, wheat, and sorghum. The 442 nucleotides of unknown origin were not edited. The 18 editing events within the atp6 homologous region were similar to those in the atp6 transcripts of sorghum. RNA editing in maize C-atp6 transcripts introduces a translational stop codon at the same position where it is created by editing in sorghum and Oenothera atp6 mRNAs and is already present in atp6 open reading frames of most other plant and non-plant organisms. Our results, along with other reports on editing in chimeric transcripts, indicate that RNA editing is not influenced by rearrangements but instead is sequence specific.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00352015
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  • 5
    Electronic Resource
    Electronic Resource
    Purification of mitochondria and mitochondrial nucleic acids from embryogenic suspension cultures of a gymnosperm, Larix x leptoeuropaea (1995)
    Springer
    Plant cell reports 14 (1995), S. 534-538 
    Details
    ISSN: 1432-203X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract After a number of attempts to isolate mitochondria from different conifer tissues, embryogenic suspension cultures of hybrid larch (Larix x leptoeuropaea) were developed which enabled the purification of mitochondria using slight modifications to standard techniques. The mitochondrial purity was verified by analysis of the mitochondrial RNA, DNA and proteins. The larch mitochondrial genome size is surprisingly large (〉 1000 kbp) and the polypeptide pattern differs greatly from those of wheat or potato mitochondria, suggesting that valuable evolutionary insights will be gained from comparisons between gymnosperm and angiosperm mitochondria. The ease with which embryogenic conifer suspensions can be initiated and used for mitochondrial purification implies that they will be the material of choice for future studies of this type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00232790
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  • 6
    Electronic Resource
    Electronic Resource
    Dividend Forecast Biases in Index Option Valuation (2000)
    Springer
    Review of derivatives research 4 (2000), S. 285-303 
    Details
    ISSN: 1573-7144
    Keywords: index options ; option pricing ; dividend forecasting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract Since the early days of option pricing theory,the assumption that the dividends on the underlying stock orindex over the life of the contract are known has not been challenged.We examine the sensitivity of index option prices to the assumptionof dividend uncertainty. We consider a number of issues relatedto the forecasting of dividends and build a dividend forecastingmodel that passes several rigorous tests for unbiasedness. Wethen generate option prices using contemporary market levelsand interest rates. We find that prices generated with the actualdividends are unbiased with respect to those generated usingthe forecasted dividends. The magnitudes of the forecast errors,however, are sufficiently large to suggest a concern, but thepercentage errors are consistently small, typically amountingto less than two percent of the option price. We conclude thatthe convenient assumption that the stream of future dividendsis known is probably innocuous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1011335530815
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  • 7
    Electronic Resource
    Electronic Resource
    Short Note: Biodegradation of chlorobenzoates by Actinomycetes (1998)
    Springer
    World journal of microbiology and biotechnology 14 (1998), S. 785-786 
    Details
    ISSN: 1573-0972
    Keywords: Biodegradation ; chlorobenzoates ; Corynebacterium liquefaciens ; optimization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Of the nine actinomycete strains screened for their ability to grow on isomeric chlorobenzoates (Cba), Corynebacterium liquefaciens, a sewage isolate, was able to maximally metabolize 3.2mM 2- and 3-Cba in presence of 0.25mM glucose as co-substrate. The degradation of 2-Cba and 3-Cba was 70.3% and 79.37% (w/v), respectively, under optimized conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008852503617
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