2,4-Dichlorophenoxyacetic acid affects the attachment of Azospirillum brasilense Cd to maize roots.
2.4-Dichlorophenoxyacetic acid (2,4-D) is a herbicide widely applied to forage, grain and cereals. We previously determined that 1 mM 2,4-D diminished cell growth and cellular activity of Azospirillum brasilense Cd. The present work was designed to determine the possible effect of this herbicide--at concentrations used on crops--on the attachment of the bacteria to maize roots, since this step is of prime importance for the growth stimulation of the plant obtained with Azospirillum brasilense. In this paper we demonstrate that 2,4-D alters the bacterial adhesion to maize roots.
Jofré
E
E
Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Uniniversidad Nacional de Río Cuarto, Córdoba, Argentina.
Mori
G
G
Castro
S
S
Fabra
A
A
Rivarola
V
V
Balegno
H
H
D015084:2,4-Dichlorophenoxyacetic Acid / Q000633:toxicity*; D015806:Azospirillum brasilense / Q000378:metabolism / Q000502:physiology*; D001422:Bacterial Adhesion / Q000187:drug effects*; D003470:Culture Media; D005456:Fluorescent Dyes; D006540:Herbicides / Q000633:toxicity*; D018517:Plant Roots / Q000187:drug effects / Q000382:microbiology* / Q000502:physiology; D011135:Polysaccharides, Bacterial / Q000096:biosynthesis; D003313:Zea mays / Q000187:drug effects* / Q000382:microbiology
D003470:Culture Media; D005456:Fluorescent Dyes; D006540:Herbicides; D011135:Polysaccharides, Bacterial; D015084:2,4-Dichlorophenoxyacetic Acid