KNAW Repository

Effects of Sand Deposition on the Interaction between Ammophila-Arenaria, Plant-Parasitic Nematodes, and Pathogenic Fungi

De Rooij van der Goes, P.C.E.M. and Van der Putten, W.H. and Peters, B.A.M. (1995) Effects of Sand Deposition on the Interaction between Ammophila-Arenaria, Plant-Parasitic Nematodes, and Pathogenic Fungi. Canadian Journal of Botany-Revue Canadienne De Botanique, 73, 1141-1150. ISSN 0008-4026.

[img]PDF - Published Version
Restricted to KNAW only

1673Kb

Official URL: http://dx.doi.org/10.1139/b95-124

Abstract

Ammophila arenaria is a dominant sand-fixing plant species of the European coastal foredunes. It remains vigorous under regular burial conditions on seaward slopes, but starts to degenerate when sand accumulation diminishes. Several hypotheses have been put forward to explain this degeneration. In this study, we test the hypothesis that upward growth of plants following sand burial enables them to escape harmful soil organisms. Plants in a degenerating field stand of A. arenaria and potted plants grown in sterilized sand (outdoor pot experiment) were buried with sterilized or nonsterilized sand. Burial in both sterilized and nonsterilized sand resulted in stem elongation, increased numbers of living shoots, and increased shoot and root biomass. However, when plants were grown in and buried with sterilized sand, the numbers of shoots were significantly higher than those buried with nonsterilized sand. The new root zone of buried plants was colonized by pathogenic soil organisms (nematodes and fungi) during the same growing season. It is concluded that by upward growth through pathogen-free sand, the plants benefit, at least temporarily, from escaping its pathogens and parasites. [KEYWORDS: Clonal growth; upward growth; migration; soil-borne disease; growth reduction Harmful soil organisms; hippophae-rhamnoides l; growth;breviligulata; succession; ecology]

Item Type:Article
Institutes:Nederlands Instituut voor Ecologie (NIOO)
ID Code:12203
Deposited On:25 Nov 2011 01:00
Last Modified:31 Mar 2014 10:06

Repository Staff Only: item control page