Record ID No. |
855 |
Author(s) |
Corcho S.M., Urrea,L.M., Campo A,.R.O., Cabrales H,E.M , 2005 |
Affiliation |
Universidad de Cordoba, Cordoba, Colombia. |
Title |
Estimation of diversity of arbuscular mycorrhizal fungi in acid-sulfate soil from Cordoba, Colombia |
Source. Vol.(no):Page |
Suelos-Ecuatoriales. 35(2): 28-33p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Ecology |
Sub-subjects |
Biodiversity |
Host |
Musa paradisiaca, Cynodon nlemfuensis, Dichanthium aristatum, Brachiaria mutica |
Organism |
Acaulospora, Glomus, Scutellospora |
Country |
Colombia, S. America |
Abstracts |
In Colombia, characterization of arbuscular mycorrhiza in acid sulfate soils is practically nil. Handling and conservation of mycorrhizal fungi is necessary to determine their diversity in the field. Two samplings were made in the municipalities of Monteria, Cerete, San Carlos, and Cienaga de Oro in Cordoba, Colombia. The types of mycorrhizal fungi associated to banana crops (Musa paradisiaca), grass star (Cynodon nlemfuensis), angleton (Dichanthium aristatum), and Braquipara (Brachiaria mutica [Urochloa mutica]) were made based on spore morphological characters. The isolation of mycorrhizal spores was carried out following the methodology described by Sieverding (1983) with some modifications. In the first sampling, a total of 126 spores were found in 16 samples, the highest number of spores was detected in banana crops. In the second sampling, 85 spores were found, the highest number was observed in Braquipara. The genera found corresponded to Acaulospora, Glomus, and Scutellospora, the last one had the greatest frequency. The highest spore number was found at a soil pH range of 3.8-4.8 with sulfur concentrations between 80 and 300 mg kg-1. It was concluded that the activity of the mycorrhizal fungi may be affected by high sulfur concentrations. |