Journal
PEDOBIOLOGIA
Volume 53, Issue 6, Pages 369-373Publisher
ELSEVIER GMBH
DOI: 10.1016/j.pedobi.2010.07.001
Keywords
Fraxinus uhdei; Soil aggregates; Glomus intraradices; Pisolithus tinctorius; Dual interaction
Categories
Funding
- CIC (Cordinacion de la Investigacion Cientifica) UMSNH
- CONACYT (Consejo Nacional de Ciencia y Tecnologia)
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It has been established that arbuscular mycorrhizal (AM) fungi are involved in the conservation of soil structure. However, the effect of ectomycorrhizal (EM) fungi alone or in interaction with AM fungi in soil structure has been much less studied. This experiment evaluated EM and AM fungi effects on soil aggregation and plant growth. Ash plants (Fraxinus uhdei) were grown in pots, and were inoculated with Glomus intra radices and Pisolithus tinctorius separately but also in combination. Our results showed that F. uhdei established a symbiotic association with EM and AM fungi, and that these organisms, when interacting, showed synergistic and additive effects on plant growth compared to singly inoculated treatments. EM and AM fungi prompted changes in root morphology and increased water-stable aggregates. AM fungi affect mainly small-sized macroaggregates, while EM and EM-AM fungi interaction mainly affected aggregates bigger than 0.5 mm diameter. These results suggest that ectomyccorrhizal as well as arbuscular mycorrhizal fungi should be considered in restoration programs with Fraxinus plants. (C) 2010 Elsevier GmbH. All rights reserved.
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