Review: Allelochemicals as multi-kingdom plant defence compounds: towards an integrated approach

Hickman, Darwin T.; Rasmussen, Amanda; Ritz, Karl; Birkett, Michael A.; Neve, Paul

Abstract

© 2020 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. The capability of synthetic pesticides to manage weeds, insect pests and pathogens in crops has diminished due to evolved resistance. Sustainable management is thus becoming more challenging. Novel solutions are needed and, given the ubiquity of biologically active secondary metabolites in nature, such compounds require further exploration as leads for novel crop protection chemistry. Despite improving understanding of allelochemicals, particularly in terms of their potential for use in weed control, their interactions with multiple biotic kingdoms have to date largely been examined in individual compounds and not as a recurrent phenomenon. Here, multi-kingdom effects in allelochemicals are introduced by defining effects on various organisms, before exploring current understanding of the inducibility and possible ecological roles of these compounds with regard to the evolutionary arms race and dose–response relationships. Allelochemicals with functional benefits in multiple aspects of plant defence are described. Gathering these isolated areas of science under the unified umbrella of multi-kingdom allelopathy encourages the development of naturally-derived chemistries conferring defence to multiple discrete biotic stresses simultaneously, maximizing benefits in weed, insect and pathogen control, while potentially circumventing resistance. © 2020 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Citation

Hickman, D. T., Rasmussen, A., Ritz, K., Birkett, M. A., & Neve, P. (2021). Review: Allelochemicals as multi-kingdom plant defence compounds: towards an integrated approach. Pest Management Science, 77(3), 1121-1131. https://doi.org/10.1002/ps.6076

• Journal Article Type: Review
• Acceptance Date: Sep 8, 2020
• Online Publication Date: Sep 23, 2020
• Publication Date: 2021-03
• Deposit Date: Sep 24, 2020
• Publicly Available Date: Sep 24, 2020
• Journal: Pest Management Science
• Print ISSN: 1526-498X
• Electronic ISSN: 1526-4998
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 77
• Issue: 3
• Pages: 1121-1131
• DOI: https://doi.org/10.1002/ps.6076
• Keywords: Agronomy and Crop Science; Insect Science; General Medicine
• Public URL: https://nottingham-repository.worktribe.com/output/4922363
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1002/ps.6076