Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2008;179(1):224-235.
doi: 10.1111/j.1469-8137.2008.02430.x. Epub 2008 Mar 29.

Plant phenology and genetic variability in root and nodule development strongly influence genetic structuring of Rhizobium leguminosarum biovar viciae populations nodulating pea

Géraldine Depret  1 , Gisèle Laguerre  1   2
Affiliations
Free article

Plant phenology and genetic variability in root and nodule development strongly influence genetic structuring of Rhizobium leguminosarum biovar viciae populations nodulating pea

Géraldine Depret et al. New Phytol. 2008.
Free article

Abstract

The symbiotic relationships between legumes and their nitrogen (N(2))-fixing bacterial partners (rhizobia) vary in effectiveness to promote plant growth according to both bacterial and legume genotype. To assess the selective effect of host plant on its microsymbionts, the influence of the pea (Pisum sativum) genotype on the relative nodulation success of Rhizobium leguminosarum biovar viciae (Rlv) genotypes from the soil populations during plant development has been investigated. Five pea lines were chosen for their genetic variability in root and nodule development. Genetic structure and diversity of Rlv populations sampled from nodules were estimated by molecular typing with a marker of the genomic background (rDNA intergenic spacer) and a nodulation gene marker (nodD region). Differences were found among Rlv populations related to pea genetic background but also to modification of plant development caused by single gene mutation. The growth stage of the host plant also influenced structuring of populations. A particular nodulation genotype formed the majority of nodules during the reproductive stage. Overall, modification in root and nodule development appears to strongly influence the capacity of particular rhizobial genotypes to form nodules.

PubMed Disclaimer

References

    1. Amarger N, Macheret V, Laguerre G. 1997. Rhizobium gallicum sp. nov. and Rhizobium giardinii sp. nov., from Phaseolus vulgaris nodules. International Journal of Systematic Bacteriology 47: 996-1006.
    1. Baudoin E, Benizri E, Guckert A. 2001. Metabolic fingerprint of microbial communities from distinct maize rhizosphere compartments. European Journal of Soil Biology 37: 85-93.
    1. Begum AA, Leibovitch S, Migner P, Zhang F. 2001. Specific flavonoids induced nod gene expression and pre-activated nod genes of Rhizobium leguminosarum increased pea (Pisum sativum L.) and lentil (Lens culinaris L.) nodulation in controlled growth chamber environments. Journal of Experimental Botany 52: 1537-1543.
    1. Van Berkum P, Eardly BD. 1998. Molecular evolutionary systematics of the Rhizobiaceae. In: Spaink HP, Kondorosi A, Hooykaas JJ, eds. The Rhizobiaceae molecular biology of model plant-associated bacteria. Dordrecht, the Netherlands: Kluwer Academic Publishers, 1-24.
    1. Bourion V, Laguerre G, Depret G, Voisin A-S, Salon C, Duc G. 2007. Genetic variability in nodulation and root growth affects nitrogen fixation and accumulation in pea. Annals of Botany 100: 589-598.

Publication types

Substances

LinkOut - more resources