Molybdenum involvement in aerobic degradation of picolinic acid by Arthrobacter picolinophilus
- 1 February 1990
- journal article
- Published by Oxford University Press (OUP) in FEMS Microbiology Letters
- Vol. 67 (3) , 281-284
- https://doi.org/10.1016/0378-1097(90)90009-f
Abstract
Growth of Arthrobacter picolinophilus on picolinic acid was dependent on the presence of molybdate. Tungstate, the specific antagonist of molybdate, decreased growth and consumption of picolinic acid, but had no influence on growth with succinate. Additionally, enzyme activities of picolinate dehydrogenase decreased when the organism was grown on picolinic acid in the presence of increasing amounts of tungstate. The further addition of molybdate reversed the negative effect, which points to an involvement of a molybdoenzyme. Furthermore, a Gram-negative rod was isolated from an enrichment culture with picolinic acid, which behaved quite similar to Arthrobacter picolinophilus regarding the influence of molybdate and tungstate.Keywords
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