The effect of native and ACC deaminase-containing Azospirillum brasilense Cd1843 on the rooting of carnation cuttings.
Carnation cuttings treated with non-transformed and 1-aminocyclopropane (ACC) deaminase-containing Azospirillum brasilense Cd1843 produced significantly more roots than untreated controls and fewer roots than cuttings treated with 0.1% indolebutyric acid (IBA). The roots produced by cuttings treated with ACC deaminase-containing Azospirillum brasilense Cd1843 were the longest roots resulting from any of the treatments, followed by non-transformed Azospirillum brasilense Cd1843, 0.1% IBA, and treatment with water. The results are interpreted in terms of a previously proposed model of bacterial promotion of plant growth by ACC deaminase and indoleacetic acid, and may have implications for the use of plant growth-promoting bacteria in the flower industry.
Li
Qiaosi
Q
Deaprtment of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
Saleh-Lakha
Saleema
S
Glick
Bernard R
BR
D015806:Azospirillum brasilense / Q000201:enzymology* / Q000235:genetics; D019755:Carbon-Carbon Lyases / Q000235:genetics / Q000378:metabolism; D029749:Dianthus / Q000254:growth & development / Q000382:microbiology*; D051639:Gardening; D018517:Plant Roots / Q000254:growth & development / Q000382:microbiology*; D014170:Transformation, Genetic
C033634:1-aminocyclopropane-1-carboxylate deaminase; D019755:Carbon-Carbon Lyases