| Title |
Cupriavidus and Burkholderia Species Associated with Agricultural Plants that Grow in Alkaline Soils |
| Author |
Paulina Estrada-de los Santos1,2*, Nora Belinda Vacaseydel-Aceves2, Lourdes Martínez-Aguilar1, María Antonia Cruz-Hernández2, Alberto Mendoza-Herrera2, and Jesús Caballero-Mellado1 |
| Address |
1Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Ap. Postal 565-A, Cuernavaca, Morelos, México, 2Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Blvd. del Maestro s/n, Reynosa, Tamaulipas, México |
| Bibliography |
Journal of Microbiology, 49(6),867-876, 2011,
|
| DOI |
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| Key Words |
Burkholderia, Ralsonia, soil PH, plant-associated bacteria, heavy metal |
| Abstract |
The presence of Burkholderia, Cupriavidus, and Ralstonia species in northeastern Mexico was investigated. An analysis of the root surrounding soil from different agricultural plants led to the isolation of Burkholderia and Cupriavidus species but no Ralstonia strains. Most Cupriavidus species were unknown and grouped into two clusters according to ARDRA profiles. The 16S rRNA sequence analysis showed that the Cupriavidus isolates were highly related among them and with different Cupriavidus species with validated names. However, SDS-PAGE profiles were distinct among the different ARDRA profiles and to other Cupriavidus species examined, suggesting new species in the genus. This shows that Cupriavidus is more widely associated with plants than previously appreciated. The BCC isolate was 99% similar to B. cenocepacia by recA sequence analysis. Additionally, most Cupriavidus strains from the two largest groups grew on media containing up to 0.1 mg/ml of copper, 10.0 mg/ml arsenic and 1.0 mg/ml zinc. Burkholderia strains grew on media containing up to 10.0 mg/ml zinc, 5.0 mg/ml arsenic and 0.1 mg/ml copper. |
