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Researchers from National Center for Scientific Research (CNRS) Report Recent Findings in Plant Biology

June 17, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Life Science Research have been published. According to news reporting out of Toulouse, France, by NewsRx editors, research stated, "The arbuscular mycorrhizal (AM) symbiosis is a widespread mutualistic association between soil fungi (Glomeromycota) and the roots of most plant species. AM fungi are obligate biotrophs whose development is partially under the control of their plant host."

Our news journalists obtained a quote from the research from National Center for Scientific Research (CNRS), "We explored the possibility to combine metabolomic and transcriptomic approaches to find putative mycorrhiza-associated metabolites regulating AM fungal development. Methanol extracts of Medicago truncatula roots colonized or not with the AM fungus Rhizophagus irregularis were analyzed and compared by ultra-high-performance liquid chromatography (UHPLC), high-resolution mass spectrometry (Q-TOF), and multivariate statistical discrimination. We detected 71 mycorrhiza-associated analytes exclusively present or at least 10-fold more abundant in mycorrhizal roots. To identify among these analytes those that could regulate AM fungal development, we fractionated by preparative and semi-preparative HPLC the mycorrhizal and non-mycorrhizal root extracts and established how the 71 analytes were distributed among the fractions. Then we tested the activity of the fractions on germinating spores of R. irregularis by quantifying the expression of 96 genes known for their diverse in planta expression patterns. These investigations reveal that propionyl-and butyryl-carnitines accumulated in mycorrhizal roots."

According to the news editors, the research concluded: "The results suggest that these two molecules regulate fungal gene expression in planta and represent interesting candidates for further biological characterization."

For more information on this research see: Combining Metabolomics and Gene Expression Analysis Reveals that Propionyl- and Butyryl-Carnitines Are Involved in Late Stages of Arbuscular Mycorrhizal Symbiosis. Molecular Plant, 2014;7(3):554-566. Molecular Plant can be contacted at: Oxford Univ Press, Great Clarendon St, Oxford OX2 6DP, England. (Oxford University Press -; Molecular Plant -

Our news journalists report that additional information may be obtained by contacting J. Laparre, CNRS, UMR5504, Toulouse, France. Additional authors for this research include M. Malbreil, F. Letisse, J.C. Portais, C. Roux, G. Becard and V. Puech-Pages (see also Life Science Research).

Keywords for this news article include: France, Europe, Toulouse, Machine Learning, Emerging Technologies, Life Science Research, Gene Expression Analysis

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Source: Life Science Weekly

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