Insect Egg Deposition Induces Indirect Defense and Epicuticular Wax Changes in Arabidopsis thaliana

Blenn, Beatrice; Bandoly, Michele; Küffner, Astrid; Otte, Tobias; Geiselhardt, Sven; Fatouros, Nina E.; Hilker, Monika

doi:10.1007/s10886-012-0132-8

Cited by 54 publications

(52 citation statements)

References 57 publications

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“…2) and previous ones333445 may be considered as a defence response that is targeting the eggs. Indeed, Blenn et al 30. had shown chemical defence responses of A. thaliana to P. brassicae egg deposition.…”

Section: Discussionmentioning

confidence: 99%

“…We chose A. thaliana and the butterfly Pieris brassicae as a plant–insect model system since A. thaliana shows inducible defence reactions against Pieris eggs and feeding larvae29303132 and altered transcript patterns after Pieris egg deposition3334, Pieris larval feeding damage3536 or exposure to cold2728. We analysed the plant’s transcriptome after several days of chilling or egg deposition as primary stimuli and after herbivory as secondary stimulus.…”

mentioning

confidence: 99%

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Pre-exposure of Arabidopsis to the abiotic or biotic environmental stimuli “chilling” or “insect eggs” exhibits different transcriptomic responses to herbivory

Firtzlaff

Oberländer

Geiselhardt

et al. 2016

Sci Rep

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Plants can retain information about environmental stress and thus, prepare themselves for impending stress. In nature, it happens that environmental stimuli like ‘cold’ and ‘insect egg deposition’ precede insect herbivory. Both these stimuli are known to elicit transcriptomic changes in Arabidposis thaliana. It is unknown, however, whether they affect the plant’s anti-herbivore defence and feeding-induced transcriptome when they end prior to herbivory. Here we investigated the transcriptomic response of Arabidopsis to feeding by Pieris brassicae larvae after prior exposure to cold or oviposition. The transcriptome of plants that experienced a five-day-chilling period (4 °C) was not fully reset to the pre-chilling state after deacclimation (20 °C) for one day and responded differently to herbivory than that of chilling-inexperienced plants. In contrast, when after a five-day-lasting oviposition period the eggs were removed, one day later the transcriptome and, consistently, also its response to herbivory resembled that of egg-free plants. Larval performance was unaffected by previous exposure of plants to cold and to eggs, thus indicating P. brassicae tolerance to cold-mediated plant transcriptomic changes. Our results show strong differences in the persistence of the plant’s transcriptomic state after removal of different environmental cues, and consequently differential effects on the transcriptomic response to later herbivory.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Pre-exposure of Arabidopsis to the abiotic or biotic environmental stimuli “chilling” or “insect eggs” exhibits different transcriptomic responses to herbivory

Firtzlaff

Oberländer

Geiselhardt

et al. 2016

Sci Rep

Self Cite

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“…1), a male-derived anti-aphrodisiac. BC mimics the egg-induced arrest of Trichogramma brassicae parasitoid wasp when applied to B. oleracea and Arabidopsis leaves (Fatouros et al 2008a; Blenn et al 2012). In addition, BC was shown to be a cue by which T. brassicae wasps locate P. brassica e butterflies to be transported to the oviposition site (Fatouros et al 2005).…”

Section: Perception Of Egg-derived Compoundsmentioning

confidence: 99%

Perception, signaling and molecular basis of oviposition-mediated plant responses

Reymond

2013

Planta

129

154

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Eggs deposited on plants by herbivorous insects represent a threat as they develop into feeding larvae. Plants are not a passive substrate and have evolved sophisticated mechanisms to detect eggs and induce direct and indirect defenses. Recent years have seen exciting development in molecular aspects of egg-induced responses. Some egg-associated elicitors have been identified, and signaling pathways and egg-induced expression profiles are being uncovered. Depending on the mode of oviposition, both the jasmonic acid and salicylic acid pathways seem to play a role in the induction of defense responses. An emerging concept is that eggs are recognized like microbial pathogens and innate immune responses are triggered. In addition, some eggs contain elicitors that induce highly specific defenses in plants. Examples of egg-induced suppression of defense or, on the contrary, egg-induced resistance highlight the complexity of plant–egg interactions in an on-going arms race between herbivores and their hosts. A major challenge is to identify plant receptors for egg-associated elicitors, to assess the specificity of these elicitors and to identify molecular components that underlie various responses to oviposition.

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“…Accordingly, inbred plants, which were of higher quality to the larvae, were favoured over outbred plants for oviposition by the adult hawk moths (Manduca sexta) [13]. Once the eggs have been laid, plants can react against the eggs directly by hypersensitive and toxic responses and indirectly by releasing volatile chemical compounds or inducing changes in leaf surface chemicals that attract natural enemies of the insect eggs [17,24,25]. Because plant inbreeding can modify emission of volatile compounds, it can also alter the interactions of plants with the natural enemies of herbivores [7,26].…”

Section: Introductionmentioning

confidence: 99%

Preference for outbred host plants and positive effects of inbreeding on egg survival in a specialist herbivore

et al. 2014

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Inbreeding can profoundly affect the interactions of plants with herbivores as well as with the natural enemies of the herbivores. We studied how plant inbreeding affects herbivore oviposition preference, and whether inbreeding of both plants and herbivores alters the probability of predation or parasitism of herbivore eggs. In a laboratory preference test with the specialist herbivore moth Abrostola asclepiadis and inbred and outbred Vincetoxicum hirundinaria plants, we discovered that herbivores preferred to oviposit on outbred plants. A field experiment with inbred and outbred plants that bore inbred or outbred herbivore eggs revealed that the eggs of the outbred herbivores were more likely to be lost by predation, parasitism or plant hypersensitive responses than inbred eggs. This difference did not lead to differences in the realized fecundity as the number of hatched larvae did not differ between inbred and outbred herbivores. Thus, the strength of inbreeding depression in herbivores decreases when their natural enemies are involved. Plant inbreeding did not alter the attraction of natural enemies of the eggs. We conclude that inbreeding can significantly alter the interactions of plants and herbivores at different life-history stages, and that some of these alterations are mediated by the natural enemies of the herbivores.

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Insect Egg Deposition Induces Indirect Defense and Epicuticular Wax Changes in Arabidopsis thaliana

Cited by 54 publications

References 57 publications

Pre-exposure of Arabidopsis to the abiotic or biotic environmental stimuli “chilling” or “insect eggs” exhibits different transcriptomic responses to herbivory

Pre-exposure of Arabidopsis to the abiotic or biotic environmental stimuli “chilling” or “insect eggs” exhibits different transcriptomic responses to herbivory

Perception, signaling and molecular basis of oviposition-mediated plant responses

Preference for outbred host plants and positive effects of inbreeding on egg survival in a specialist herbivore

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