PRESENCE OF GLOMUS AGGREGATUM IN TWO PASTURE AGROECOSYSTEMS

Main Article Content

Alexander Pérez Cordero
Donicer E. Montes Vergara
Yelitza Aguas Mendoza

Keywords

Agroecosystem, kikuyo, arbuscular mycorrhizae, livestock soils.

Abstract

Although the importance of arbuscular mycorrhizal (AMF) plant-fungi symbiosis is recognized worldwide, there are some aspects of community structure and function in tropical pasture agroecosystems that have not been studied. In the Colombian Caribbean, most of the studies have been related to the benefits of symbiosis in different hosts, especially in aspects of productivity, plant nutrition and fertilizer substitution, which has allowed to determine the potential use of these microorganisms in conventional production systems or in clean production systems. The objective of this study was to isolate spores of arbuscular mycorrhizal fungi (AMF) associated with compacted and non-compacted rhizosphere of Bothriochloa pertusa (L) A. Camus from cattle farms in the municipalities of Sincelejo and Tolú and to establish the most predominant groups or species. The results show a higher abundance of AMF genera, corresponding to the genus Glomus in non-compacted soils of the two municipalities evaluated. The most adapted morphospecies found in both ecosystems was Glomus aggregatum Schenck & Smith, Koske, 1995, which is a morphospecies used as an inoculant for the improvement and productivity of tropical crops.

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