Jasmonate signalling in carnivorous plants: copycat of plant defence mechanisms

Pavlovic, Andej; Mithöfer, Axel

doi:10.1093/jxb/erz188

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Jasmonate signalling in carnivorous plants: copycat of plant defence mechanisms

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Mithöfer, Axel
Research Group Plant Defense Physiology, Dr. Axel Mithöfer, MPI for Chemical Ecology, Max Planck Society;

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http://dx.doi.org/10.1093/jxb/erz188
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Citation

Pavlovic, A., & Mithöfer, A. (2019). Jasmonate signalling in carnivorous plants: copycat of plant defence mechanisms. Journal of Experimental Botany, 70(13), 3379-3389. doi:10.1093/jxb/erz188.

Cite as: https://hdl.handle.net/21.11116/0000-0003-559E-C

Abstract

The lipid-derived jasmonate phytohormones (JAs) regulate a wide spectrum of physiological processes in plants
such as growth, development, tolerance to abiotic stresses, and defence against pathogen infection and insect attack.
Recently, a new role for JAs has been revealed in carnivorous plants. In these specialized plants, JAs can induce
the formation of digestive cavities and regulate enzyme production in response to different stimuli from caught
prey. Appearing to be a new function for JAs in plants, a closer look reveals that the signalling pathways involved
resemble known signalling pathways from plant defence mechanisms. Moreover, the digestion-related secretome of
carnivorous plants is composed of many pathogenesis-related (PR) proteins and low molecular weight compounds,
indicating that the plant carnivory syndrome is related to and has evolved from plant defence mechanisms. This review
describes the similarities between defence and carnivory. It further describes how, after recognition of caught
insects, JAs enable the carnivorous plants to digest and benefit from the prey. In addition, a causal connection between
electrical and jasmonate signalling is discussed.