TOL质粒可阻止对芳香酸的趋化反应的诱导。
TOL plasmid can prevent induction of chemotactic responses to aromatic acids.
作者信息
Harwood C S, Ornston L N
出版信息
J Bacteriol. 1984 Nov;160(2):797-800. doi: 10.1128/jb.160.2.797-800.1984.
Abstract
Growth conditions that elicited positive chemotaxis to benzoate and m-toluate in TOL- Pseudomonas putida cells failed to elicit taxis to these compounds in TOL+ cells. The inability of TOL+ cells to respond to these aromatic acids appears to be due to the preferential expression of TOL-encoded genes for aromatic degradation over chromosomally encoded genes. Expression of chromosomal genes for aromatic degradation is required for cells to form beta-ketoadipate, the inducer of benzoate and m-toluate taxis.
摘要
能使TOL-恶臭假单胞菌细胞对苯甲酸盐和间甲苯酸盐产生正向趋化性的生长条件，无法使TOL+细胞对这些化合物产生趋化性。TOL+细胞无法对这些芳香酸作出反应，似乎是由于TOL编码的芳香族降解基因比染色体编码的基因优先表达。细胞形成β-酮己二酸（苯甲酸盐和间甲苯酸盐趋化性的诱导物）需要染色体上芳香族降解基因的表达。
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