Full TGIF Record # 210578
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DOI:10.1007/s11104-011-1060-z
Web URL(s):https://link.springer.com/article/10.1007%2Fs11104-011-1060-z
    Last checked: 10/05/2017
Publication Type:
i
Refereed
Author(s):Zyśko, Agnieszka; Sanguin, Hervé; Hayes, Andrew; Wardleworth, Leanne; Zeef, Leo A. H.; Sim, Allan; Paterson, Eric; Singh, Brajesh K.; Kertesz, Michael A.
Author Affiliation:Zyśko, Hayes, Wardleworth, Zeef, and Kertesz: Faculty of Life Sciences, University of Manchester, Manchester, UK; Sanguin: Laboratoire des Symbioses Tropicales et Mediterraneennes, Campus International de Baillarguet, Montpellier, France; Sim, Paterson, and Singh: The James Hutton Institute, Craigiebuckler, Aberdeen, Scotland, UK; Singh: Hawkesbury Institute for the Environment, University of Western Sydney, Penrith South; Kertesz: Faculty of Agriculture, Food and Natural Resources, The University of Sydney, Sydney, NSW, Australia
Title:Transcriptional response of Pseudomonas aeruginosa to a phosphate-deficient Lolium perenne rhizosphere
Source:Plant and Soil. Vol. 359, No. 1-2, October 2012, p. 25-44.
# of Pages:20
Publishing Information:Dordrecht, The Netherlands: Kluwer Academic Publishers
Related Web URL:http://link.springer.com/article/10.1007/s11104-011-1060-z?null
    Last checked: 10/04/2012
    Notes: Abstract only
Keywords:TIC Keywords: Cell membrane disruptors; Gene expression; Isolation technique; Lolium perenne; Metabolism; Microbial activity; Rhizosphere; Root exudates; Substrates
Abstract/Contents:"Background and aims Plant-bacterial interactions in the rhizosphere are important in mediating soil nutrient transformations. Plants supply carbon-rich substrates to rhizobacteria as root exudates and bacteria mobilise soil-bound phosphate for plant nutrition. This study aimed to probe the specificity of the plant effect on bacterial gene expression in P-starved rhizosphere conditions. Methods DNA microarrays were employed to study gene expression in the rhizosphere of Lolium perenne grown under high and low phosphate regimes (330 μM vs. 3-6 μM phosphate). Root exudation under these regimes was also quantified. Phosphate-regulated gene expression of a panel of 22 genes was compared in rhizosphere, planktonic culture and during biofilm growth on an artificial root. Results Plant growth and root exudation were affected by P-availability. P-limited conditions induced increased expression of bacterial genes of an aromatic degradation pathway (catA), heavy metal sensing (PA2523), and membrane proteins (glpM, crcB), while genes involved in cell motility and amino acid uptake/ metabolism were downregulated. A crcB mutant was impaired in rhizosphere survival under low phosphate conditions, though glpM and catA mutants were not affected. Several of the genes studied were induced by phosphate limitation in all three lifestyles studied. Conclusions Our results show the importance of the plant-microbe interaction in controlling the bacterial transcriptional response in a phosphate-limited rhizosphere."
Language:English
References:95
Note:Tables
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zyśko, A., H. Sanguin, A. Hayes, L. Wardleworth, L. A. H. Zeef, A. Sim, et al. 2012. Transcriptional response of Pseudomonas aeruginosa to a phosphate-deficient Lolium perenne rhizosphere. Plant Soil. 359(1-2):p. 25-44.
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DOI: 10.1007/s11104-011-1060-z
Web URL(s):
https://link.springer.com/article/10.1007%2Fs11104-011-1060-z
    Last checked: 10/05/2017
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