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  • GEOPHYSICS  (1)
  • METEOROLOGY AND CLIMATOLOGY  (1)
  • Temperature  (1)
  • 1975-1979  (3)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Factors affecting ethylene production by some plant pathogenic bacteria (1979)
    Springer
    Plant and soil 51 (1979), S. 19-26 
    Details
    ISSN: 1573-5036
    Keywords: Bacteria ; Cofactors ; Copper ; Ethylene ; FMN ; Light ; Methionine ; Plant pathogens ; Pseudomonas ; Substrate ; Temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Methionine, up to 10−3 M, added to a basal medium enhanced bacterial ethylene production in 14 of the 20 bacteria tested. The effects of substrate, cofactors, light, and temperature on ethylene production byPseudomonas solanacearum #25 revealed that the greatest effect occurred when 10−5 M methionine and 10−4 M FMN were combined, from which 4.10μl/l of ethylene were produced. Higher levels of methionine resulted in production of high levels of non-enzymically produced ethylene and death of the bacteria. This non-enzymic production of ethylene was eliminated in the dark. Copper had no effect upon ethylene production. Twenty-nine and 35°C were inhibitory, whereas 19°C appeared to be near optimum for ethylene production.Pseudomonas solanacaerum #25 and some other bacteria are capable of ethylene production and methionine and FMN enhance this production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02205923
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Unknown
    Compatibility of meteorological rocketsonde data as indicated by international comparison tests (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Results of two experiments involving intercomparisons of rocketsonde measurements of temperature and wind data in the 25 to 80 km altitude region in the CIMO (Commission for Instruments and Methods of Observations) program during September 1973 are reported. Rocketsonde systems used by France, the USSR, the UK, the U.S., and Japan in the two parts of the program (one series of tests at Wallops Island, Va., the other in French Guiana) are described. Wind data were derived from radar tracking of retardation devices and payloads in descent. Day and night temperature differences were examined. The intercomparisons revealed excellent compatibility of the rocketsonde data up to 60 km in wind observations. Some outstanding problems are pointed out.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Journal of the Atmospheric Sciences; 32; Sept
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Intercalibration of airglow observatories with the Atmosphere Explorer satellite (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The visible airglow photometer on the Atmosphere Explorer C satellite has been used to compare the calibrations of a number of ground-based airglow observatories. Discrepancies between different ground stations as large as a factor of six have been revealed. Efforts to account for these discrepancies have resulted in the discovery of differences as large as a factor of two in the standard light sources in use at different observatories. The participation of additional observatories in the intercomparison of standard sources is solicited. The project has also led to the discovery of a source of error that can amount to another factor of two in the procedure used to calibrate many airglow instruments. In the course of the project, detailed maps based on satellite data have been made of the galactic and zodiacal-light background at a number of wavelengths, and a substantial source of contaminating emission has been discovered in the satellite data. The contamination appears to result from interaction of the spacecraft and the atmosphere at altitudes below 170 km.
    Keywords: GEOPHYSICS
    Type: Planetary and Space Science; 25; Feb. 197
    Format: text
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    NASA TECHNICAL REPORTS
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