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.
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This work was supported by the Fred C. Gloeckner Foundation and the University of Minnesota Graduate School Grant in Aid #496-0307-4909-02.
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Swanson, B.T., Wilkins, H.F. & Kennedy, B.W. Factors affecting ethylene production by some plant pathogenic bacteria. Plant Soil 51, 19–26 (1979). https://doi.org/10.1007/BF02205923
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DOI: https://doi.org/10.1007/BF02205923