New frontiers in belowground ecology for plant protection from root-feeding insects

SN Johnson, C Benefer, A Frew, BS Griffiths, S Hartley, A Karley, S Rasmann, M Schumann, I Sonnemann, C Robert

Research output: Contribution to journalReview article

22 Citations (Scopus)
3 Downloads (Pure)

Abstract

Herbivorous insect pests living in the soil represent a significant challenge to food security given their persistence, the acute damage they cause to plants and the difficulties associated with managing their populations. Ecological research effort into rhizosphere interactions has increased dramatically in the last decade and we are beginning to understand, in particular, the ecology of how plants defend themselves against soil-dwelling pests. In this review, we synthesise information about four key ecological mechanisms occurring in the rhizosphere or surrounding soil that confer plant protection against root herbivores. We focus on root tolerance, root resistance via direct physical and chemical defences, particularly via acquisition of siliconbased plant defences, integration of plant mutualists (microbes and entomopathogenic nematodes, EPNs) and the influence of soil history and feedbacks. Their suitability as management tools, current limitations for their application, and the opportunities for development are evaluated. We identify opportunities for synergy between these aspects of rhizosphere ecology, such as mycorrhizal fungi negatively affecting pests at the root-interface but also increasing plant uptake of silicon, which is also known to reduce herbivory. Finally, we set out research priorities for developing potential novel management strategies.
Original languageEnglish
Pages (from-to)96 - 107
Number of pages12
JournalApplied Soil Ecology
Volume108
Early online date9 Aug 2016
DOIs
Publication statusFirst published - 9 Aug 2016

Fingerprint

plant protection
ecology
insects
soil
plant ecology
phytophagous insects
silicon
food security
insect pests
mycorrhizal fungi
herbivores
Nematoda
pests
microorganisms
history

Bibliographical note

1030770
1030789

Keywords

  • Belowground herbivores
  • Ecological applications
  • Rhizosphere
  • Root herbivory
  • Root-feeding insects
  • Soils

Cite this

Johnson, SN., Benefer, C., Frew, A., Griffiths, BS., Hartley, S., Karley, A., ... Robert, C. (2016). New frontiers in belowground ecology for plant protection from root-feeding insects. Applied Soil Ecology, 108, 96 - 107. https://doi.org/10.1016/j.apsoil.2016.07.017
Johnson, SN ; Benefer, C ; Frew, A ; Griffiths, BS ; Hartley, S ; Karley, A ; Rasmann, S ; Schumann, M ; Sonnemann, I ; Robert, C. / New frontiers in belowground ecology for plant protection from root-feeding insects. In: Applied Soil Ecology. 2016 ; Vol. 108. pp. 96 - 107.
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Johnson, SN, Benefer, C, Frew, A, Griffiths, BS, Hartley, S, Karley, A, Rasmann, S, Schumann, M, Sonnemann, I & Robert, C 2016, 'New frontiers in belowground ecology for plant protection from root-feeding insects', Applied Soil Ecology, vol. 108, pp. 96 - 107. https://doi.org/10.1016/j.apsoil.2016.07.017

New frontiers in belowground ecology for plant protection from root-feeding insects. / Johnson, SN; Benefer, C; Frew, A; Griffiths, BS; Hartley, S; Karley, A; Rasmann, S; Schumann, M; Sonnemann, I; Robert, C.

In: Applied Soil Ecology, Vol. 108, 09.08.2016, p. 96 - 107.

Research output: Contribution to journalReview article

TY - JOUR

T1 - New frontiers in belowground ecology for plant protection from root-feeding insects

AU - Johnson, SN

AU - Benefer, C

AU - Frew, A

AU - Griffiths, BS

AU - Hartley, S

AU - Karley, A

AU - Rasmann, S

AU - Schumann, M

AU - Sonnemann, I

AU - Robert, C

N1 - 1030770 1030789

PY - 2016/8/9

Y1 - 2016/8/9

N2 - Herbivorous insect pests living in the soil represent a significant challenge to food security given their persistence, the acute damage they cause to plants and the difficulties associated with managing their populations. Ecological research effort into rhizosphere interactions has increased dramatically in the last decade and we are beginning to understand, in particular, the ecology of how plants defend themselves against soil-dwelling pests. In this review, we synthesise information about four key ecological mechanisms occurring in the rhizosphere or surrounding soil that confer plant protection against root herbivores. We focus on root tolerance, root resistance via direct physical and chemical defences, particularly via acquisition of siliconbased plant defences, integration of plant mutualists (microbes and entomopathogenic nematodes, EPNs) and the influence of soil history and feedbacks. Their suitability as management tools, current limitations for their application, and the opportunities for development are evaluated. We identify opportunities for synergy between these aspects of rhizosphere ecology, such as mycorrhizal fungi negatively affecting pests at the root-interface but also increasing plant uptake of silicon, which is also known to reduce herbivory. Finally, we set out research priorities for developing potential novel management strategies.

AB - Herbivorous insect pests living in the soil represent a significant challenge to food security given their persistence, the acute damage they cause to plants and the difficulties associated with managing their populations. Ecological research effort into rhizosphere interactions has increased dramatically in the last decade and we are beginning to understand, in particular, the ecology of how plants defend themselves against soil-dwelling pests. In this review, we synthesise information about four key ecological mechanisms occurring in the rhizosphere or surrounding soil that confer plant protection against root herbivores. We focus on root tolerance, root resistance via direct physical and chemical defences, particularly via acquisition of siliconbased plant defences, integration of plant mutualists (microbes and entomopathogenic nematodes, EPNs) and the influence of soil history and feedbacks. Their suitability as management tools, current limitations for their application, and the opportunities for development are evaluated. We identify opportunities for synergy between these aspects of rhizosphere ecology, such as mycorrhizal fungi negatively affecting pests at the root-interface but also increasing plant uptake of silicon, which is also known to reduce herbivory. Finally, we set out research priorities for developing potential novel management strategies.

KW - Belowground herbivores

KW - Ecological applications

KW - Rhizosphere

KW - Root herbivory

KW - Root-feeding insects

KW - Soils

U2 - 10.1016/j.apsoil.2016.07.017

DO - 10.1016/j.apsoil.2016.07.017

M3 - Review article

VL - 108

SP - 96

EP - 107

JO - Applied Soil Ecology

JF - Applied Soil Ecology

SN - 0929-1393

ER -

Johnson SN, Benefer C, Frew A, Griffiths BS, Hartley S, Karley A et al. New frontiers in belowground ecology for plant protection from root-feeding insects. Applied Soil Ecology. 2016 Aug 9;108:96 - 107. https://doi.org/10.1016/j.apsoil.2016.07.017