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  • Articles  (2)
  • Automatic control  (1)
  • Mitochondria  (1)
  • Chemistry
  • Springer  (2)
  • 1990-1994  (2)
  • 1975-1979
  • 1960-1964
  • 1
    Electronic Resource
    Electronic Resource
    Molecular cloning and analysis of the nuclear gene MRP-L6 coding for a putative mitochondrial ribosomal protein from Saccharomyces cerevisiae (1993)
    Springer
    Current genetics 24 (1993), S. 136-140 
    Details
    ISSN: 1432-0983
    Keywords: Mitochondria ; Ribosomal protein ; Nuclear gene ; pet mutant ; yeast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The Saccharomyces cerevisiae nuclear gene MRP-L6 was cloned by complementation of the respiratory-deficient mutant pet-ts 2523 with a library of wildtype yeast genomic DNA. The isolated gene was part of a 3.8-kb sequenced DNA fragment containing, in addition to MRP-L6, two unassigned reading frames, ORF1 and ORF2. MRP-L6 codes for a basic protein of 205 amino acids and a molecular mass of 22.8 kDa. The protein exhibits significant sequence similarity to the ribosomal protein L6 of bacteria and chloroplasts. Unlike the corresponding bacterial proteins, however, the MRP-L6 protein (MRP-L6p) contains at its N-terminus a 16 amino-acid leader sequence exhibiting the known characteristics of mitochondrial import signals. Disruption of MRP-L6 leads to the phenotype of a mitochondrial translation-defective, rho-negative yeast mutant. The results are consistent with MRP-L6p representing an essential component of yeast mitochondrial ribosomes. Expression of MRP-L6 was examined, under conditions of glucose repression and derepression, in wild-type cells and in a series of catabolite repression-defective yeast mutants. In most cases, a distinct though small influence of the carbon source on the expression of an MRP-L6/lacZ reporter construct was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324677
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  • 2
    Electronic Resource
    Electronic Resource
    A review and integrating analysis of Spatially-Variable Control of crop production (1992)
    Springer
    Nutrient cycling in agroecosystems 33 (1992), S. 1-34 
    Details
    ISSN: 1573-0867
    Keywords: Automatic control ; fertilizer application ; geographic information systems ; sensors ; sitespecific ; spatially-variable ; variability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The variability of crops, soils, and pests within crop production fields has led to attempts to understand those variations and to manage crop production accordingly. The rapidly expanding research and development on the management and control of crop production according to in-field variations is reviewed. The various stages and components of this spatially-variable control are classified and presented along with a proposed terminology and notation. Advances in component technologies (sensors, actuators, locators, geostatistics, geographic information systems) and their integration should reduce crop production costs and be environmentally advantageous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01058007
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    Paper (German National Licenses)
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