You are not currently logged in.
Access JSTOR through your library or other institution:
Local and systemic effects of phosphorus and nitrogen on nodulation and nodule function in Alnus incana
Francesco Gentili and Kerstin Huss-Danell
Journal of Experimental Botany
Vol. 54, No. 393 (December 2003), pp. 2757-2767
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/23697677
Page Count: 11
You can always find the topics here!Topics: Nodules, Plants, Plant roots, Nodulation, Plant growth, Root systems, Phosphorus, Inoculation, Leaves, Nitrogen
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Preview not available
Phosphorus (P) and nitrogen (N) effects on nodulation, nitrogenase activity and plant growth were studied in the root-hair-infected actinorhizal plant Alnus incana (L.) Moench. A split-root experiment, as well as a short-term experiment with entire root systems and a broader range of P concentrations, showed that P effects were specific on nodulation and not a general stimulation via a plant growth effect. These results indicate that nodule initiation and nodule growth have a high P demand. The split-root assay, comprising seven combinations of two N and two P levels, showed that P could counteract systemic N inhibition of nodulation, but did not counteract N inhibition of nitrogenase activity.
Journal of Experimental Botany © 2003 Oxford University Press