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Journal of Chemical Ecology

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  1. An Aromatic Volatile Attracts Oligolectic bee Pollinators in an Interdependent bee-Plant Relationship.

    Journal of Chemical Ecology 40(10):1126 (2014) PMID 25315355

    We asked if specific volatile compounds produced by the flowers mediate pollinator attraction. The yellow Hydrocleys flowers are the sole pollen and nectar resources, and mating sites for the bees. We analyzed the floral scents of this species and of the closely related H. nymphoides, which is not v...
  2. Variation in preen oil composition pertaining to season, sex, and genotype in the polymorphic white-throated sparrow.

    Journal of Chemical Ecology 40(9):1025 (2014) PMID 25236380

    We should be able to identify the volatile components that could make the secretions more detectable, determine the seasonality of these secretions, and determine whether olfactory signals differ among relevant social groups. We examined the seasonal differences in volatile compounds of the preen oi...
  3. Similar differentiation patterns between PBP expression levels and pheromone component ratios in two populations of Sesamia nonagrioides.

    Journal of Chemical Ecology 40(8):923 (2014) PMID 25123236

    We report different expression levels of PBP transcripts in the antennae of two populations of the stemborer Sesamia nonagrioides (Lepidoptera: Noctuidae), one collected in Europe and one in sub-Saharan Africa. The three PBP transcripts previously identified in this species were found to be expresse...
  4. Cytokinin-induced phenotypes in plant-insect interactions: learning from the bacterial world.

    Journal of Chemical Ecology 40(7):826 (2014) PMID 24944001

    We hypothesize that insects employ a CK-mix production strategy that manipulates the phytohormonal balance of their host-plant and overtakes plant gene expression causing a metabolic and morphological habitat modification. In addition, insect endosymbiotic bacteria may prove to be instrumental in th...
  5. Chemical ecology of phytohormones: how plants integrate responses to complex and dynamic environments.

    Journal of Chemical Ecology 40(7):653 (2014) PMID 25037238

  6. Specific polyphenols and tannins are associated with defense against insect herbivores in the tropical oak Quercus oleoides.

    Journal of Chemical Ecology 40(5):458 (2014) PMID 24809533

    We combined correlative field studies across three geographic regions (Northern Mexico, Southern Mexico, and Costa Rica) with induction experiments under controlled conditions to search for candidate compounds that might play a defensive role in the foliage of the tropical oak, Quercus oleoides. We...
  7. Preface.

    Journal of Chemical Ecology 40(4):307 (2014) PMID 24711054

  8. Further studies on sex pheromones of female Lygus and related bugs: development of effective lures and investigation of species-specificity.

    Journal of Chemical Ecology 40(1):71 (2014) PMID 24390623

    We studied the volatiles released by females of four species: Lygus rugulipennis, Lygus pratensis, Lygocoris pabulinus, and Liocoris tripustulatus. Analyses of volatiles from individual, undisturbed insects showed that the three compounds were produced in species-specific blends, by females only, or...
  9. Apple volatiles synergize the response of codling moth to pear ester.

    Journal of Chemical Ecology 39(5):643 (2013) PMID 23564293

    Our work was undertaken to identify host volatiles from apples, and to investigate whether these volatiles can be used to enhance the efficacy of host kairomone pear ester for monitoring female and male codling moths. Volatiles from immature apple trees were collected in the field using dynamic head...
  10. Patterns of phytochemical variation in Mimulus guttatus (yellow monkeyflower).

    Journal of Chemical Ecology 39(4):525 (2013) PMID 23468225

    We investigated patterns of genetic variation in phytochemical defenses (phenylpropanoid glycosides, PPGs) in Mimulus guttatus (yellow monkeyflower). We grew plants derived from several natural populations, consisting of multiple full-sibling families within each population, in a common greenhouse e...