82 results found
    1. Ecology

    Plant-associated CO2 mediates long-distance host location and foraging behaviour of a root herbivore

    Carla CM Arce et al.
    The larvae of the western corn rootworm use root-emitted CO2 to successfully locate the most suitable host plant.
    1. Ecology

    Benefits of jasmonate-dependent defenses against vertebrate herbivores in nature

    Ricardo AR Machado et al.
    Uncovering an link between plant defense signaling and vertebrate feeding behavior suggests that large browsers may exert strong selection pressure on jasmonate-dependent secondary metabolites.
    1. Ecology

    Linking spatial patterns of terrestrial herbivore community structure to trophic interactions

    Jakub Witold Bubnicki et al.
    The spatial interactions between humans, large carnivores and herbivores cascade down in a complex but predictable way to lower trophic levels affecting regeneration of tree species in a temperate forest.
    1. Ecology
    2. Plant Biology

    Plant defense phenotypes determine the consequences of volatile emission for individuals and neighbors

    Meredith C Schuman et al.
    Both the frequency of sesquiterpene-emitting individuals and the defense capacity of individual plants determine the consequences of sesquiterpene volatile emission for individuals and their neighbors in populations of the wild tobacco Nicotiana attenuata.
    1. Evolutionary Biology
    2. Plant Biology

    Independent evolution of ancestral and novel defenses in a genus of toxic plants (Erysimum, Brassicaceae)

    Tobias Züst et al.
    A gain-of-function in a new chemical defense resulted in no trade-offs and and independent evolution between novel and ancestral defenses, suggesting low redundancy among different defensive chemicals.
    1. Ecology
    2. Plant Biology

    Cytokinin transfer by a free-living mirid to Nicotiana attenuata recapitulates a strategy of endophytic insects

    Christoph Brütting et al.
    Cytokinin-dependent manipulation of plant metabolism is a strategy employed not only by gallers and leaf-miners but also by a free-living insect, Tupiocoris notatus, which directly transfers cytokinins at feeding sites to manipulate its host plant.
    1. Ecology
    2. Plant Biology

    Natural genetic variation in Arabidopsis thaliana defense metabolism genes modulates field fitness

    Rachel Kerwin et al.
    Environmental heterogeneity may contribute to the high levels of genetic variation in glucosinolate genes found in Arabidopsis thaliana.
    1. Plant Biology

    Prioritizing plant defence over growth through WRKY regulation facilitates infestation by non-target herbivores

    Ran Li et al.
    A chewing herbivore induced WRKY transcription factor induces jasmonate-dependent defences and supresses gibbererellin-dependent growth, the latter of which renders rice plants more susceptible to secondary infestation by a piercing-sucking herbivore.
    1. Ecology
    2. Plant Biology

    How scent and nectar influence floral antagonists and mutualists

    Danny Kessler et al.
    Floral scent and nectar are highly variable in natural populations and both traits can influence outcrossing rates differently for different pollinators and increase future herbivory.
    1. Neuroscience
    2. Plant Biology

    Hawkmoths evaluate scenting flowers with the tip of their proboscis

    Alexander Haverkamp et al.
    Building on previous work (Kessler et al., 2015), it is shown that long-tongued hawkmoths assess individual flowers by smelling floral odors with olfactory neurons on their proboscises, and that this close-range perception is crucial for successful pollination and foraging.

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