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Please use this identifier to cite or link to this item: http://hdl.handle.net/10451/4048

Título: Spatial variability of arbuscular mycorrhizal fungal spores in two natural plant communities
Autor: Carvalho, Luís M.
Correia, Patrícia M.
Ryel, Ronald J.
Martins-Loução, M. Amélia
Palavras-chave: Arbuscular mycorrhizal fungal spores
Plant community structure
Soil properties
Spatial distribution
Issue Date: 2003
Editora: Kluwer
Citação: Plant and Soil 251: 227–236, 2003
Resumo: Geostatistical techniques were used to assess the spatial patterns of spores of arbuscular mycorrhizal fungi (AMF) in soils from two contrasting plant communities: a salt marsh containing only arbuscular mycorrhizal and nonmycorrhizal plants in a distinct clumped distribution pattern and a maquis with different types of mycorrhiza where most plants were relatively randomly distributed. Also evaluated was the relationship between the spatial distribution of spores and AM plant distribution and soil properties. A nested sampling scheme was applied in both sites with sample cores taken from nested grids. Spores of AMF and soil characteristics (organic matter and moisture) were quantified in each core, and core sample location was related to plant location. Semivariograms for spore density indicated strong spatial autocorrelation and a patchy distribution within both sites for all AM fungal genera found. However, the patch size differed between the two plant communities and AM fungal genera. In the salt marsh, AMfungal spore distribution was correlated with distance to AMplants and projected stand area of AM plants. In maquis, spatial AM fungal spore distribution was correlated with organic matter. These results suggest that spore distribution of AMF varied between the two plant communities according to plant distribution and soil properties.
Arbitragem científica: yes
URI: http://hdl.handle.net/10451/4048
ISSN: 0032-079X
Appears in Collections:FC - Artigos em Revistas Internacionais

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