Phytotoxicity of Essential Oils: Opportunities and Constraints for the Development of Biopesticides. A Review

Foods

Pierre-Yves Werrie¹  Marie-Laure Fauconnier¹  Pierre Delaplace²  Bastien Durenne³ 

[1] Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, University of Liège, 5030 Gembloux, Belgium;Plant Sciences, Gembloux Agro-Bio Tech, University of Liège, 5030 Gembloux, Belgium;Soil, Water and Integrated Production Unit, Walloon Agricultural Research Centre, 5030 Gembloux, Belgium;

关键词: essential oils;    phytotoxicity;    mode of action;    biopesticides;   

DOI  :  10.3390/foods9091291

来源: DOAJ

【 摘 要 】

The extensive use of chemical pesticides leads to risks for both the environment and human health due to the toxicity and poor biodegradability that they may present. Farmers therefore need alternative agricultural practices including the use of natural molecules to achieve more sustainable production methods to meet consumer and societal expectations. Numerous studies have reported the potential of essential oils as biopesticides for integrated weed or pest management. However, their phytotoxic properties have long been a major drawback for their potential applicability (apart from herbicidal application). Therefore, deciphering the mode of action of essential oils exogenously applied in regards to their potential phytotoxicity will help in the development of biopesticides for sustainable agriculture. Nowadays, plant physiologists are attempting to understand the mechanisms underlying their phytotoxicity at both cellular and molecular levels using transcriptomic and metabolomic tools. This review systematically discusses the functional and cellular impacts of essential oils applied in the agronomic context. Putative molecular targets and resulting physiological disturbances are described. New opportunities regarding the development of biopesticides are discussed including biostimulation and defense elicitation or priming properties of essential oils.

【 授权许可】

Unknown