EVIDENCE FOR 2 UPTAKE SYSTEMS IN RHIZOBIUM-LEGUMINOSARUM FOR HYDROXY-AROMATIC COMPOUNDS METABOLIZED BY THE 3-OXOADIPATE PATHWAY

被引:15
作者
WONG, CM [1 ]
DILWORTH, MJ [1 ]
GLENN, AR [1 ]
机构
[1] MURDOCH UNIV, SCH BIOL & ENVIRONM SCI, NITROGEN FIXAT RES GRP, MURDOCH, WA 6150, AUSTRALIA
关键词
RHIZOBIUM-LEGUMINOSARUM; AROMATIC METABOLISM; AROMATIC UPTAKE;
D O I
10.1007/BF00248715
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Rhizobium leguminosarum biovar viciae and Rhizobium leguminosarum biovar trifolii have separate uptake systems for 4-hydroxybenzoate and protocatechuate. The 4-hydroxybenzoate uptake system (pobP) is inhibited by a range of compounds with substitution at the 4-position on the aromatic ring whereas the uptake system for protocatechuate (pcaP) is markedly inhibited only by other dihydroxybenzoic acids. The rate of 4-hydroxybenzoate uptake is very low in Rhizobium leguminosarum and Rhizobium trifolii grown on protocatechuate but mutants defective in 4-hydroxybenzoate uptake transport protocatechuate at rates similar to the wild-type grown under similar conditions.
引用
收藏
页码:385 / 391
页数:7
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