Effects of 2,4-dichlorophenoxyacetic acid on Rhizobium sp. growth and characterization of its transport.
The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) produced a deleterious effect on the growth of Rhizobium sp. M4, that was reversed by transferring the cells to a fresh control medium. The uptake of 2,4-D by Rhizobium sp. was not affected by chloramphenicol, indicating that it is constitutive rather than inducible. The mechanism of transport also appears to be energy independent, since uptake was not inhibited by azide or arsenate.
Arias
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Facultad de Ciencias Exactas, Fisico-Quimicas y Naturales, Universidad Nacional de Rio Cuarto, Argentina.
Fabra de Peretti
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D015084:2,4-Dichlorophenoxyacetic Acid / Q000378:metabolism / Q000494:pharmacology*; D001149:Arsenates / Q000494:pharmacology; D001386:Azides / Q000494:pharmacology; D001692:Biological Transport; D012231:Rhizobium / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D019810:Sodium Azide
D001149:Arsenates; D001386:Azides; D015084:2,4-Dichlorophenoxyacetic Acid; D019810:Sodium Azide