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Apple Replant Disease: Causes and Mitigation Strategies

  • After replanting apple (Malus domestica Borkh.) on the same site severe growth suppressions, and a decline in yield and fruit quality are observed in all apple producing areas worldwide. The causes of this complex phenomenon, called apple replant disease (ARD), are only poorly understood up to now which is in part due to inconsistencies in terms and methodologies. Therefore we suggest the following definition for ARD: ARD describes a harmfully disturbed physiological and morphological reaction of apple plants to soils that faced alterations in their (micro-) biome due to the previous apple cultures. The underlying interactions likely have multiple causes that extend beyond common analytical tools in microbial ecology. They are influenced by soil properties, faunal vectors, and trophic cascades, with genotype-specific effects on plant secondary metabolism, particularly phytoalexin biosynthesis. Yet, emerging tools allow to unravel the soil and rhizosphere (micro-) biome, to characterize alterations of habitat quality, and to decipher the plant reactions. Thereby, deep insights into the reactions taking place at the root rhizosphere interface will be gained. Counteractions are suggested, taking into account that culture management should emphasize on improving soil microbial and faunal diversity as well as habitat quality rather than focus on soil disinfection.

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Document Type:Article
Author:Traud Winkelmann, Kornelia Smalla, Wulf Amelung, Gerhard Baab, Gisela Grunewaldt-Stöcker, Xorla Kanfra, Rainer Meyhöfer, Stefanie Reim, Michaela Schmitz, Doris Vetterlein, Andreas Wrede, Sebastian Zühlke, Jürgen Grunewaldt, Stefan Weiß, Michael Schloter
Parent Title (English):Current Issues in Molecular Biology
First Page:89
Last Page:106
Publisher:Caister Academic Press
Date of first publication:2018/08/02
Funding:The authors gratefully acknowledge funding of the project ORDIAmur by the German Federal Ministry of Research and Education within the frame of the program BonaRes (grant no. 031B0025).
Departments, institutes and facilities:Fachbereich Angewandte Naturwissenschaften
Projects:BonaRes (Modul A): ORDIAmur - Überwindung der Nachbaukrankheit mithilfe eines integrierten Ansatzes; Teilprojekt H (DE/BMBF/031B0025H)
Dewey Decimal Classification (DDC):6 Technik, Medizin, angewandte Wissenschaften / 63 Landwirtschaft / 632 Schäden, Krankheiten, Schädlinge an Pflanzen
Entry in this database:2018/08/10