Record ID No. |
1617 |
Author(s) |
Lugo,M A., Ferrero, M., Menoyo, E., Estevez, M C., Sineriz,F., Anton A , 2008 |
Affiliation |
Univ Nacl San Luis, Fac Qca Bioqca & Farm, Catedra Diversidad Vegetal 1, San Luis, Argentina, Email: lugo@unsl.edu.ar |
Title |
Arbuscular mycorrhizal fungi and rhizospheric bacteria diversity along an Altitudinal gradient in south American puna grassland |
Source. Vol.(no):Page |
Microbial Ecology. 55(4): 705-713p |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Ecology |
Sub-subjects |
Biodiversity |
Organism |
Bacillus, Pseudomonas, Arthrobacter, Acaulospora sp., A. laevis, A. spinosa, Gigaspora sp., Gi. ramisporophora, Glomus sp., Gl. aggregatum, Gl. ambisporum, Gl. sinuosum, and Scutellospora biornata |
Country |
Argentina, South America |
Abstracts |
Rhizospheric soil samples were taken from Puna native grasses along an
altitudinal gradient. Biodiversity of arbuscular mycorrhizal fungi (AMF) and associated bacteria was analyzed considering altitude and grasses photosynthetic pathways (metabolic type C-3, C-4). Cultivation-dependent approaches were applied to obtain further information about the phylogeny
of the dominating cultivable aerobic-heterotrophic bacteria communities present in rhizospheric soil samples. In average, the bacterial count ranged between 1.30 x 10(2) and 8.66 x 10(4) CFU g(-1) of dry weight of soil. Individual bacterial colonies of aerobic heterotrophic bacteria grown on R2A medium were orphologically grouped and identified as typical soil bacteria belonging to the genera Bacillus, Pseudomonas, and Arthrobacter. Ten AMF taxa were found: Acaulospora sp., A. Laevis, A. Spinosa, Gigaspora sp., Gi. Ramisporophora, Glomus sp., Gl. Aggregatum, Gl. Ambisporum, Gl. Sinuosum, and Scutellospora biornata. AMF diversity decreased with altitude. |