Anke Steppuhn
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View article: Poltergeist-Like 2 (PLL2)-dependent activation of herbivore defence distinguishes systemin from other immune signalling pathways
Poltergeist-Like 2 (PLL2)-dependent activation of herbivore defence distinguishes systemin from other immune signalling pathways Open
Systemin, the first signalling peptide identified in plants, mediates induced resistance against insect herbivores and necrotrophic pathogens in tomato 1–3 . Initially, systemin was conceived as a hormone-like, long-distance messenger that…
View article: Poltergeist-Like 2 (PLL2)-dependent activation of the wound response distinguishes systemin from other immune signaling pathways
Poltergeist-Like 2 (PLL2)-dependent activation of the wound response distinguishes systemin from other immune signaling pathways Open
Systemin, the first signaling peptide identified in plants, mediates induced resistance against insect herbivores in tomato1. Initially, systemin was perceived as a hormone-like, long-distance messenger that triggers systemic defense respo…
View article: Understanding the chemodiversity of plants: Quantification, variation and ecological function
Understanding the chemodiversity of plants: Quantification, variation and ecological function Open
Plants produce a great number of phytochemicals serving a variety of different functions. Recently, the chemodiversity of these compounds (i.e., the diversity of compounds produced by a plant) has been suggested to be an important aspect o…
View article: The multidimensionality of plant drought stress: The relative importance of edaphic and atmospheric drought
The multidimensionality of plant drought stress: The relative importance of edaphic and atmospheric drought Open
Drought threatens plant growth and related ecosystem services. The emergence of plant drought stress under edaphic drought is well studied, whilst the importance of atmospheric drought only recently gained momentum. Yet, little is known ab…
View article: The multidimensionality of plant drought stress: The relative importance of edaphic and atmospheric drought
The multidimensionality of plant drought stress: The relative importance of edaphic and atmospheric drought Open
Drought threatens plant growth and related ecosystem services. The emergence of plant drought stress under edaphic drought is well studied, whilst the importance of atmospheric drought only recently gained momentum. Yet, little is known ab…
View article: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity
Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity Open
Introduction Assessing intraspecific variation in plant volatile organic compounds (VOCs) involves pitfalls that may bias biological interpretation, particularly when several laboratories collaborate on joint projects. Comparative, inter-l…
View article: Data from: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity
Data from: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity Open
Data for: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity
View article: Data from: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity
Data from: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity Open
Data for: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity
View article: Understanding the phytochemical diversity of plants: Quantification, variation and ecological function
Understanding the phytochemical diversity of plants: Quantification, variation and ecological function Open
Plants produce a great number of phytochemical compounds mediating a variety of different functions. Recently, phytochemical diversity (chemodiversity), a way which to quantify the complex phenotype formed by sets of phytochemicals, has be…
View article: Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity
Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity Open
Introduction Assessing intraspecific variation in plant volatile organic compounds (VOCs) involves pitfalls that may bias biological interpretation, particularly when several laboratories collaborate on joint projects. Comparative, inter-l…
View article: Dietary cardenolides enhance growth and change the direction of the fecundity‐longevity trade‐off in milkweed bugs (Heteroptera: Lygaeinae)
Dietary cardenolides enhance growth and change the direction of the fecundity‐longevity trade‐off in milkweed bugs (Heteroptera: Lygaeinae) Open
Sequestration, that is, the accumulation of plant toxins into body tissues for defense, was predicted to incur physiological costs and may require resistance traits different from those of non‐sequestering insects. Alternatively, sequester…
View article: Dietary cardenolides enhance growth and change the direction of the fecundity-longevity trade-off in milkweed bugs (Heteroptera: Lygaeinae)
Dietary cardenolides enhance growth and change the direction of the fecundity-longevity trade-off in milkweed bugs (Heteroptera: Lygaeinae) Open
Sequestration, i.e., the accumulation of plant toxins into body tissues for defence, is primarily observed in specialised insects. Sequestration was frequently predicted to incur a physiological cost mediated by increased exposure to plant…
View article: Arabidopsis, tobacco, nightshade and elm take insect eggs as herbivore alarm and show similar transcriptomic alarm responses
Arabidopsis, tobacco, nightshade and elm take insect eggs as herbivore alarm and show similar transcriptomic alarm responses Open
Plants respond to insect eggs with transcriptional changes, resulting in enhanced defence against hatching larvae. However, it is unknown whether phylogenetically distant plant species show conserved transcriptomic responses to insect eggs…
View article: Slug Feeding Triggers Dynamic Metabolomic and Transcriptomic Responses Leading to Induced Resistance in Solanum dulcamara
Slug Feeding Triggers Dynamic Metabolomic and Transcriptomic Responses Leading to Induced Resistance in Solanum dulcamara Open
Induced plant responses to insect herbivores are well studied, but we know very little about responses to gastropod feeding. We aim to identify the temporal dynamics of signaling- and defense-related plant responses after slug feeding in r…
View article: Ecology and Evolution of Intraspecific Chemodiversity of Plants
Ecology and Evolution of Intraspecific Chemodiversity of Plants Open
An extraordinarily high intraspecific chemical diversity, i.e. chemodiversity, has been found in several plant species, of which some are of major ecological or economic relevance. Moreover, even within an individual plant there is substan…
View article: Arabidopsis, tobacco, nightshade and elm take insect eggs as herbivore alarm and show similar transcriptomic alarm responses
Arabidopsis, tobacco, nightshade and elm take insect eggs as herbivore alarm and show similar transcriptomic alarm responses Open
Plants respond to insect eggs with transcriptional changes, resulting in enhanced defence against hatching larvae. However, it is unknown whether phylogenetically distant plant species show conserved transcriptomic responses to insect eggs…
View article: Oviposition by Spodoptera exigua on Solanum dulcamara Alters the Plant’s Response to Herbivory and Impairs Larval Performance
Oviposition by Spodoptera exigua on Solanum dulcamara Alters the Plant’s Response to Herbivory and Impairs Larval Performance Open
Plant resistance traits against insect herbivores are extremely plastic. Plants respond not only to the herbivory itself, but also to oviposition by herbivorous insects. How prior oviposition affects plant responses to larval herbivory is …
View article: Interactive Responses of Solanum Dulcamara to Drought and Insect Feeding are Herbivore Species-Specific
Interactive Responses of Solanum Dulcamara to Drought and Insect Feeding are Herbivore Species-Specific Open
In nature, plants are frequently subjected to multiple biotic and abiotic stresses, resulting in a convergence of adaptive responses. We hypothesised that hormonal signalling regulating defences to different herbivores may interact with dr…
View article: Insect egg deposition renders plant defence against hatching larvae more effective in a salicylic acid‐dependent manner
Insect egg deposition renders plant defence against hatching larvae more effective in a salicylic acid‐dependent manner Open
Plants can improve their antiherbivore defence by taking insect egg deposition as cue of impending feeding damage. Previous studies showed that Pieris brassicae larvae feeding upon egg‐deposited Brassicaceae perform worse and gain less wei…
View article: The Plant Immunity Regulating F-Box Protein CPR1 Supports Plastid Function in Absence of Pathogens
The Plant Immunity Regulating F-Box Protein CPR1 Supports Plastid Function in Absence of Pathogens Open
The redox imbalanced 6 mutant (rimb6) of Arabidopsis thaliana was isolated in a genetic screening approach for mutants with defects in chloroplast-to- nucleus redox signaling. It has an atypically low activation status of the 2-Cys peroxir…
View article: <i>NaMYB8</i> regulates distinct, optimally distributed herbivore defense traits
<i>NaMYB8</i> regulates distinct, optimally distributed herbivore defense traits Open
Summary When herbivores attack, plants specifically reconfigure their metabolism. Herbivory on the wild tobacco Nicotiana attenuata strongly induces the R2R3 MYB transcriptional activator MYB8, which was reported to specifically regulate t…
View article: <scp><i>Solanum dulcamara</i></scp>'s response to eggs of an insect herbivore comprises ovicidal hydrogen peroxide production
<span><i>Solanum dulcamara</i></span>'s response to eggs of an insect herbivore comprises ovicidal hydrogen peroxide production Open
Plants can respond to insect oviposition, but little is known about which responses directly target the insect eggs and how. Here, we reveal a mechanism by which the bittersweet nightshade Solanum dulcamara kills the eggs of a generalist n…
View article: Transcriptomic responses of <i>Solanum dulcamara</i> to natural and simulated herbivory
Transcriptomic responses of <i>Solanum dulcamara</i> to natural and simulated herbivory Open
Plants are attacked by diverse herbivores and respond with manifold defence responses. To study transcriptional and other early regulation events of these plant responses, herbivory is often simulated to standardize the temporal and spatia…
View article: Induced plant defences in biological control of arthropod pests: a double‐edged sword
Induced plant defences in biological control of arthropod pests: a double‐edged sword Open
Biological control is an important ecosystem service delivered by natural enemies. Together with breeding for plant defence, it constitutes one of the most promising alternatives to pesticides for controlling herbivores in sustainable crop…
View article: The role of phytophagy by predators in shaping plant interactions with their pests
The role of phytophagy by predators in shaping plant interactions with their pests Open
Zoophytophagy is common among predacious arthropods, but research on their role in plant-herbivore interactions is generally focused on predation effects whereas their phytophagy is largely neglected. Our recent study revealed the ability …
View article: Drought and flooding have distinct effects on herbivore‐induced responses and resistance in<i>Solanum dulcamara</i>
Drought and flooding have distinct effects on herbivore‐induced responses and resistance in<i>Solanum dulcamara</i> Open
In the field, biotic and abiotic stresses frequently co‐occur. As a consequence, common molecular signalling pathways governing adaptive responses to individual stresses can interact, resulting in compromised phenotypes. How plant signalli…
View article: Priming of anti‐herbivore defence in <i>Nicotiana attenuata</i> by insect oviposition: herbivore‐specific effects
Priming of anti‐herbivore defence in <i>Nicotiana attenuata</i> by insect oviposition: herbivore‐specific effects Open
Oviposition by Spodoptera exigua on Nicotiana attenuata primes plant defence against its larvae that consequently suffer reduced performance. To reveal whether this is a general response of tobacco to insect oviposition or species‐specific…
View article: A push-button: <i>Spodoptera exigua</i> oviposition on <i>Nicotiana attenuata</i> dose-independently primes the feeding-induced plant defense
A push-button: <i>Spodoptera exigua</i> oviposition on <i>Nicotiana attenuata</i> dose-independently primes the feeding-induced plant defense Open
Insect oviposition on a plant often precedes the attack by herbivorous larvae. We recently discovered that oviposition by Spodoptera exigua moths on the desert tobacco Nicotiana attenuata primes the induction of 2 defense traits, a phenylp…