Plant and Soil

, Volume 129, Issue 1, pp 75–83 | Cite as

Beneficial and deleterious effects of HCN-producing pseudomonads on rhizosphere interactions

  • B. Schippers
  • A. W. Bakker
  • P. A. H. M. Bakker
  • R. Van Peer
Article

Abstract

Rhizobacteria live around roots but also inside the cortical root tissues by utilizing organic substances released from root cells into the intercellular spaces and the root environment. The effects of metabolites of these rhizosphere-inhabiting bacteria on root physiology and plant development have hardly been studied. However, recent studies indicate that, depending on environmental factors and plant species, certain strains of rhizosphere Pseudomonas spp. and some of their metabolites such as HCN may inhibit or enhance plant establishment or inhibit development of plant disease. Cultural practices such as cropping frequency, no tillage, and soilless cultivation, as well as edaphic factors seem to determine these rhizosphere interactions.

Key words

beneficial rhizosphere pseudomonads cyanide negative mutants cyanide production by pseudomonads deleterious rhizosphere pseudomonads disease suppression by pseudomonads induced resistance plant growth promotion Pseudomonas fluorescens Pseudomonas putida Transposon mutagenesis 

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Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • B. Schippers
    • 1
  • A. W. Bakker
    • 1
  • P. A. H. M. Bakker
    • 1
  • R. Van Peer
    • 1
  1. 1.Willie Commelin Scholten Phytopathological Laboratory (Department of Plant PathologyUniversity of Utrecht)BaarnThe Netherlands

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