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Phosphorus nutrition of woody plants: many questions – few answers

Authors


Correspondence

H. Rennenberg, Institute of Forest Sciences, Chair of Tree Physiology, University of Freiburg, Georges-Köhler-Allee 53/54, D - 79110 Freiburg, Germany.

E-mail: heinz.rennenberg@ctp.uni-freiburg.de

Abstract

Phosphorus (P) acquisition, cycling and use efficiency has been investigated intensively with herbaceous plants. It is known that local as well as systemic signalling contributes to the control of P acquisition. Woody plants are long-lived organisms that adapt their life cycle to the changing environment during their annual growth cycle. Little is known about P acquisition and P cycling in perennial plants, especially regarding storage and mobilisation, its control by systemic and environmental factors, and its interaction with the largely closed ecosystem-level P cycle. The present report presents a view on open questions on plant internal P cycling in woody plants.

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