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Differences between Bacterial Communities in the Gut of a Soil-Feeding Termite (Cubitermes niokoloensis) and Its Mounds
- S. Fall, J. Hamelin, A. Brauman
- Environmental Science, BiologyApplied and Environmental Microbiology
- 15 June 2007
The findings confirmed that the soil-feeding termite mound (C. niokoloensis) represents a specific bacterial habitat in the tropics and revealed a drastic difference between the genetic structures of the bacterial communities of the termite gut and the mound.
Comparative distribution of organic matter in particle and aggregate size fractions in the mounds of termites with different feeding habits in Senegal : Cubitermes niokoloensis and Macrotermes…
Natural transformation in the Ralstonia solanacearum species complex: number and size of DNA that can be transferred.
The combination of these findings indicated that the natural transformation mechanism could be the main driving force of genetic diversification of the R. solanacearum species complex.
Horizontal gene transfer between Ralstonia solanacearum strains detected by comparative genomic hybridization on microarrays
This study used a new approach based on comparative genomic hybridization (CGH) on microarrays to investigate the extent of horizontal gene transfers (HGTs) between different strains of R. solanacearum and showed that DNA blocks up to 30 kb and 33 genes could be integrated during a single event.
Horizontal Gene Transfer Regulation in Bacteria as a “Spandrel” of DNA Repair Mechanisms
Results support the notion that the bacterial cell is equipped with active mechanisms to modulate acquisition of new DNA in different genomic positions, and correlated recombination “hot-spots” to the presence of Chi-like signature sequences with which recombination might be preferentially initiated.
Variation in the distribution of monosaccharides in soil fractions in the mounds of termites with different feeding habits (Senegal)
- S. Sall, A. Brauman, S. Fall, C. Rouland, E. Miambi, J. Chotte
- BiologyBiology and Fertility of Soils
- 25 June 2002
The comparative impact of the two most representative species of termites on the monosaccharide content of soil from a semi-arid tropical savanna (Senegal) was investigated and indicated that the accumulation of glucose was particularly evident in the aggregate-size fraction isolated from the IW of the mounds of C. niokoloensis.
Potential Role and Utilization of Plant Growth Promoting Microbes in Plant Tissue Culture
The analysis reveals that the process of in vitro classical tissue culture techniques, under strictly aseptic conditions, deserves to be reviewed to allow vitroplants to benefit from the positive effect of PGPMs.
Biogeography of soil microbial communities: a review and a description of the ongoing french national initiative
- L. Ranjard, S. Dequiedt, P. Lemanceau
- Environmental ScienceAgronomy for Sustainable Development
- 1 April 2010
The main results are that microbial communities are not stochastically distributed on a wide scale and that biogeographical patterns are more influenced by local parameters such as soil type and land use than by distal ones, e.g. climate and geomorphology, contrary to plants and animals.
Effect of Eucalyptus camaldulensis amendment on soil chemical properties, enzymatic activity, Acacia species growth and roots symbioses
- A. Soumare, A. Manga, S. Fall, M. Hafidi, I. Ndoye, R. Duponnois
- BiologyAgroforestry Systems
- 1 February 2015
Positive correlations were recorded between roots symbioses and shoots mineral content suggesting that arbuscular mycorrhizal fungus and N-fixing symbiosis promote mineral uptake and storage in leaves, however, polyphenolic content of added litter was negatively linked to roots symbioes and growth of tested acacias.
Bacterial Density and Community Structure Associated with Aggregate Size Fractions of Soil-Feeding Termite Mounds
Results suggest that the mound microbial genetic structure is more dependent upon microbial pool affiliation (the termite mound) than on the soil location (aggregate size fraction), and the causes of the specificity of the microbial community structure oftermite mound aggregate size fractions are discussed.