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  • INSTRUMENTATION AND PHOTOGRAPHY  (2)
  • Plastid  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Current genetics 14 (1988), S. 177-182 
    ISSN: 1432-0983
    Keywords: RFLP ; Tomato ; Plastid ; Mitochondria ; Protoplasts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Restriction fragment length polymorphisms (RFLPs) were used to determine the transmission of organelle genomes in somatic hybrid plants of tomato and its wild relativeSolanum lycopersicoides. Biased frequencies of organelle combinations were observed in a population of 70 somatic hybrid plants each derived from a separate callus. The plastids in 68 of 70 hybrids examined were fromL. esculentum. One of the remaining hybrids, plant 240, hadS. lycopersicoides plastids and the other, plant 63, had a mixture of parental plastids. Forty-six of the same 70 plants were analyzed for mtDNA and all had that ofS. lycopersicoides including plant 240. One of these hybrids had novel mtDNA fragments which mayhave resulted from recombination or rearrangement. The biased transmission may have resulted from an initial unequal input of organelles, differential replication of organelles, or nucleo-organelle incompatibility.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2011-08-19
    Description: In July of 1983, ambient measurements of nitric oxide (NO) were obtained at Wallops Island, VA, during the NASA GTE/CITE ground-based instrument intercomparison field study. The instrument, which was designed for measurements in the remote troposphere from an aircraft platform, is briefly described. Ten days of ambient air observations showed broadly uniform diurnal behavior, although considerable variability was encountered. Two distinct synoptic meteorological conditions resulted in markedly different levels of nitric oxide abundance. When the local winds were from the north to west sectors, which placed the sampling site within 130 to 300 km of large urban centers, the midday mixing ratios were typically in the range of 200-300 pptv. In contrast, when the air mass sustained a 1- or 2-day period over the Atlantic Ocean, the mixing ratios were substantially lower and in the 50-60 pptv range.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Geophysical Research (ISSN 0148-0227); 90; 12
    Format: text
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  • 3
    Publication Date: 2011-08-19
    Description: Results from an intercomparison of techniques to measure tropospheric levels of nitric oxide (NO) are discussed. The intercomparison was part of the National Aeronautics and Space Administration's Global Tropospheric Experiment and was conducted at Wallops Island, VA, in July 1983. Instruments intercompared included a laser-induced fluorescence system and two chemiluminescence instruments. The intercomparisons were performed with ambient air at NO mixing ratios ranging from 10 to 60 pptv and NO-enriched ambient air at mixing ratios from 20 to 170 pptv. All instruments sampled from a common manifold. The techniques exhibited a high degree of correlation among themselves and with changes in the NO mixing ratio. Agreement among the three techniques was placed at approximately + or - 30 percent. Within this level of agreement, no artifacts or species interferences were identified.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Geophysical Research (ISSN 0148-0227); 90; 12
    Format: text
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