M. Rowell‐Rahier

Publications51
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Citations2,040
Highly Influential Citations92
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The Chemical Ecology of Defense in Arthropods
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Salicin from host plant as precursor of salicylaldehyde in defensive secretion of Chrysomeline larvae
TLDR
It is demonstrated that salicylaldehyde is derived from salicin, a phenylglucoside present in the leaves of the host plant, and is a more potent deterrent than saligenin orsalicin.
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HOST‐PLANT SWITCHES AND THE EVOLUTION OF CHEMICAL DEFENSE AND LIFE HISTORY IN THE LEAF BEETLE GENUS OREINA
TLDR
It is hypothesize that the combination of autogenous defense and a life history that involves mobile externally feeding larvae allowed these beetles to switch host plants more readily than has been reported for highly conservative systems.
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Toxins in chrysomelid beetles Possible evolutionary sequence from de novo synthesis to derivation from food-plant chemicals
TLDR
In the larvae, it is examined in more detail how the phenolglucoside salicin can be used as the precursor of the salicylaldehyde present in the defensive secretion of Phratora vitellinae and Chrysomela spp.
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Distribution of autogenous and host-derived chemical defenses inOreina leaf beetles (Coleoptera: Chrysomelidae)
TLDR
Differences were observed between species in their ability to sequester different plant PA N-oxides and to transform them, and within-population individual differences were observed because of local plant heterogeneity in PAs.
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Production of cardenolides versus sequestration of pyrrolizidine alkaloids in larvae ofOreina species (Coleoptera, Chrysomelidae)
TLDR
Larvae of differentOreina species are analyzed and it is shown that the larvae contain the same defensive toxins as the adults in quantities similar to those released in the adults' secretion.
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Dietary mixing in three generalist herbivores: nutrient complementation or toxin dilution?
TLDR
It is argued that there is no easy way to distinguish between the two hypotheses on the basis of consumption and performance measurements, as has previously been proposed, and where in the sequence from ingestion to growth single diets caused differences from mixed diets.
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Effects of pyrrolizidine alkaloids and sesquiterpenes on snail feeding
TLDR
The feeding response of two populations of the generalist herbivorous snail Arianta arbustorum towards the composite Adenostyles alliariae and towards various allelochemicals is determined, suggesting that the snails have mechanisms for the rejection of alleLochemicals which they encounter in their natural food plants, but not for novel allelocemicals.
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Chemical defences in leaf beetles and their larvae: The ecological, evolutionary and taxonomic significance
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Economics of chemical defense in chrysomelinae
TLDR
Chemical defense in chrysomelid larvae (subtribe Chrysomelina and Phyllodectina) is reviewed and the secretion of salicylaldehyde by different species is considered to be chemical mimicry reinforcing visual aposematic signals.
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