Plant growth-promoting bacteria facilitate the growth of the common reed Phragmites australisin the presence of copper or polycyclic aromatic hydrocarbons.
To test whether plant growth-promoting bacteria might be useful in facilitating the growth of Phragmites australis, the common reed, in the presence of metals and organic compounds, P. australis seeds were treated with plant growth-promoting bacteria. The bacterium Pseudomonas asplenii AC was genetically transformed to express a bacterial gene encoding the enzyme 1-aminocyclopropane-1-carboxylate deaminase, and both the native and transformed bacteria were tested in conjunction with P. australis. Inoculation of seeds, which were subsequently grown in the presence of copper or creosote, with transformed P. asplenii AC significantly increased seed germination. Moreover, the addition of either native or transformed P. asplenii AC to P. australis seeds enabled the plants (shoots and roots) to attain a greater size than noninoculated plants after growth in soil in the presence of either copper or creosote.
Reed
M L E
ML
Department of Biology, 200 University Avenue West, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
Warner
Barry G
BG
Glick
Bernard R
BR
D018407:Bacterial Physiological Phenomena; D019755:Carbon-Carbon Lyases / Q000235:genetics / Q000378:metabolism; D003300:Copper / Q000378:metabolism*; D003407:Creosote / Q000378:metabolism; D018525:Germination; D018517:Plant Roots / Q000254:growth & development / Q000382:microbiology; D018520:Plant Shoots / Q000254:growth & development / Q000382:microbiology; D006109:Poaceae / Q000254:growth & development* / Q000382:microbiology*; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism*; D011549:Pseudomonas / Q000235:genetics / Q000378:metabolism*; D012639:Seeds / Q000254:growth & development / Q000382:microbiology
D011084:Polycyclic Aromatic Hydrocarbons; D003300:Copper; D003407:Creosote; C033634:1-aminocyclopropane-1-carboxylate deaminase; D019755:Carbon-Carbon Lyases