Record ID No. |
1369 |
Author(s) |
Spagnoletti, F. N., Fernandez di Pardo, A., Tobar GAgmez, N. E., Chiocchio, V. M. , 2013 |
Affiliation |
Presidente da Sociedade Portuguesa de Pneumologia, Argentina. email: chiocchi@agro.uba.ar |
Title |
Arbuscular mycorrhizas and Rhizobium: a dual symbiosis of interest |
Source. Vol.(no):Page |
Revista Argentina de microbiologĂa , 45(2 ):131-132p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biological Interaction |
Sub-subjects |
Mycorrhiza helper bacteria |
Host |
Alfalfa (Medicago sativa L.) |
Organism |
Glomus intraradices, Rhizobium (Sinorhizobium meliloti) |
Country |
Argentina, S. America |
Abstracts |
The beneficial microorganisms play a role in naturally sustainable agroecosystems. It is known that the primary effect of arbuscular mycorrhiza (AM) in enhancing the activity of Rhizobium is through a generalized stimulation of the host's nutrition, although some effects can occur more localized at the root level or nodules. This paper presents the results of an experiment on a strain of AM (Glomus intraradices) and a strain of Sinorhizobium meliloti alfalfa. The study revealed a high percentage of fungi colonization and presence of important vesicles and presence of appressoria, the entry points of fungal hyphae in the root. Further, nodules show a large number of spores as well as the entry points to the node external mycelium. |