Anaerobic degradation of halogenated benzoic acids by photoheterotrophic bacteria.
From light-exposed enrichment cultures containing benzoate and a mixture of chlorobenzoates, a pure culture was obtained able to grow with 3-chlorobenzoate (3-CBA) or 3-bromobenzoate (3-BrBA) as the sole growth substrate anaerobically in the light. The thus isolated organism is a photoheterotroph, designated isolate DCP3. It is preliminarily identified as a Rhodopseudomonas palustris strain. It differs from Rhodopseudomonas palustris WS17, the only other known photoheterotroph capable of using 3-CBA for growth, in its independence of benzoate for growth with 3-CBA and in its wider substrate range: if grown on 3-CBA, it can also use 2-CBA, 4-CBA or 3,5-CBA.
Department of Microbiology, University of Groningen, Haren, The Netherlands.
B J
BJ
van der Woude
M
M
de Boer
N M
NM
van der Put
F M
FM
van der Geld
R A
RA
Prins
J C
JC
Gottschal
D000693:Anaerobiosis; D001970:Bromobenzoates / Q000378:metabolism*; D002723:Chlorobenzoates / Q000378:metabolism*; D012241:Rhodopseudomonas / Q000254:growth & development / Q000378:metabolism*
D001970:Bromobenzoates; D002723:Chlorobenzoates