15 results found
    1. Ecology

    A gustatory receptor tuned to the steroid plant hormone brassinolide in Plutella xylostella (Lepidoptera: Plutellidae)

    Ke Yang et al.
    The gustatory receptor PxylGr34 is tuned to the steroid plant hormone brassinolide and mediates the deterrent effects of brassinolide on feeding and ovipositing behaviors in Plutella xylostella.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    The neuropeptide F/nitric oxide pathway is essential for shaping locomotor plasticity underlying locust phase transition

    Li Hou et al.
    Two neuropeptides, NPF1a and NPF2, act via the nitric oxide signaling pathway in the locust brain to regulate the trait transition between solitary and swarming behavior.
    1. Plant Biology
    2. Evolutionary Biology

    Herbivory-induced volatiles function as defenses increasing fitness of the native plant Nicotiana attenuata in nature

    Meredith C Schuman et al.
    A 2-year field study has demonstrated that volatile compounds produced by plants when they are attacked by herbivores act as defenses by attracting predators to the herbivores and increasing the reproduction of the plants.
    1. Ecology
    2. Evolutionary Biology

    Nitric oxide radicals are emitted by wasp eggs to kill mold fungi

    Erhard Strohm et al.
    To protect their food and themselves against detrimental mould fungi, the eggs of a wasp species synthesize and emit remarkable amounts of gaseous nitrogen oxides that are highly effective antimicrobials.
    1. Ecology
    2. Evolutionary Biology

    Caterpillar-induced rice volatiles provide enemy-free space for the offspring of the brown planthopper

    Xiaoyun Hu et al.
    The brown planthopper has evolved a highly adaptive oviposition strategy by exploiting caterpillar-induced plant volatiles that provide safe havens for its offspring.
    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

    An insect anti-antiaphrodisiac

    Colin S Brent et al.
    The first evidence is presented of a compound released by mated females that directly counteracts the effects of a seminal anti-aphrodisiac, but has no attractant properties in itself.
    1. Ecology

    5α-cyprinol sulfate, a bile salt from fish, induces diel vertical migration in Daphnia

    Meike Anika Hahn et al.
    A fish-derived bile salt was shown to act as interspecific infochemical, inducing the widespread predator avoidance behavior diel vertical migration at picomolar concentrations in freshwater zooplankton of the genus Daphnia.
    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.
    1. Ecology

    Tritrophic metabolism of plant chemical defenses and its effects on herbivore and predator performance

    Ruo Sun et al.
    Genetic manipulation demonstrates the costs and benefits of detoxifying glucosinolate plant defenses in a pest insect and its predator.

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