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Effects of plant community composition on total soil microbiota and on phosphate-solubilizing bacteria of ex-arable lands.

AuthorsSanta Regina, Ignacio CSIC ORCID ; Peix, Álvaro CSIC ORCID; Díaz, T.; Rodríguez Barrueco, Claudino CSIC; Velázquez, Encarna CSIC ORCID
KeywordsEx-arable lands
Phosphate solubilizing bacteria
Plant cover
Issue Date2007
CitationFirst International Meeting on Microbial Phosphate Solubilization. Developments in Plant and Soil Sciences. Editors E. Velázquez, C. Rodríguez-Barrueco. Volume 102. 2007, p: 277-280
AbstractIt is well known that trophic interactions between plant cover and soil organisms are key factors in ecosystems balance. Plant–microbe relationships occurring naturally in soil play a central role in composition of plant communities as well as microbial populations in soil. Many agricultural lands from Europe which were abandoned because of Agricultural Common Policy, are being converted into more natural ecosystems in order to enhanced and preserve biodiversity. The aim of this study was to investigate the effects of different experimental plant cover composition on soil microbiota of set-aside land, and the evolution of microbial populations within the different seasons, focusing on microorganisms important in nutrient cycling, and so phosphate solubilizing bacteria were used as indicator for testing these effects and processes. The results showed that generally high plant diversity treatment was the one with more total soil microbiota, but this was not so clear for phosphate-solubilizing bacteria. It was observed that phosphatesolubilizing bacteria was increasing from Autumn to Spring, and had a great fall in Summer, whereas total soil microbiota was more constant in the different seasons.
DescriptionFirst International Meeting on Microbial Phosphate Solubilization. Salamanca, Spain, 16-19 july 2002. 4 p.
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