Open AccessMolybdenum involvement in aerobic degradation of picolinic acid by Arthrobacter picolinophilus
Author(s) -
Siegmund Inka,
Koenig Kerstein,
Andreesen Jan R.
Publication year - 1990
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1990.tb04033.x
Subject(s) - picolinic acid , molybdate , tungstate , chemistry , molybdenum , nuclear chemistry , biochemistry , inorganic chemistry
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.