Anna‐Karin Borg‐Karlson
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View article: Variation in Odour Profiles of Cauliflower, Curly Kale and Broccoli (Brassica oleracea L.) Cultivars Is Affected More by Genotype Rather than Herbivore Feeding
Variation in Odour Profiles of Cauliflower, Curly Kale and Broccoli (Brassica oleracea L.) Cultivars Is Affected More by Genotype Rather than Herbivore Feeding Open
Volatile plant compounds are essential for host plant selection by herbivores and particularly important for the behaviour of parasitoids seeking larvae in which to lay eggs. Headspace extracts were collected from intact plants of four Bra…
View article: Chemical Composition of Fresh Leaves Headspace Aroma and Essential Oils of Four Coriander Cultivars
Chemical Composition of Fresh Leaves Headspace Aroma and Essential Oils of Four Coriander Cultivars Open
Aroma is one of the key food characteristics determining consumers’ perception and acceptability of products. Coriandrum sativum L. is an aromatic herb commonly used as a food additive and taste enhancer. Besides the culinary applications,…
View article: Variation in Methyl Jasmonate-Induced Defense Among Norway Spruce Clones and Trade-Offs in Resistance Against a Fungal and an Insect Pest
Variation in Methyl Jasmonate-Induced Defense Among Norway Spruce Clones and Trade-Offs in Resistance Against a Fungal and an Insect Pest Open
An essential component of plant defense is the change that occurs from a constitutive to an induced state following damage or infection. Exogenous application of the plant hormone methyl jasmonate (MeJA) has shown great potential to be use…
View article: Chemical defence responses of Norway spruce to two fungal pathogens
Chemical defence responses of Norway spruce to two fungal pathogens Open
Constitutive and inducible terpene production is involved in conifer resistance against insects and fungal infestations. To gain knowledge about local defence responses of Norway spruce bark against pathogens and to find potential chemical…
View article: Composition of Strawberry Floral Volatiles and their Effects on Behavior of Strawberry Blossom Weevil, Anthonomus rubi
Composition of Strawberry Floral Volatiles and their Effects on Behavior of Strawberry Blossom Weevil, Anthonomus rubi Open
The strawberry blossom weevil (SBW), Anthonomus rubi , is a major pest in strawberry fields throughout Europe. Traps baited with aggregation pheromone are used for pest monitoring. However, a more effective lure is needed. For a number of …
View article: Resin acids as inducible chemical defences of pine seedlings against chewing insects
Resin acids as inducible chemical defences of pine seedlings against chewing insects Open
Inducibility of defences in response to biotic stimuli is considered an important trait in plant resistance. In conifers, previous research has mostly focused on the inducibility of the volatile fraction of the oleoresin (mono- and sesquit…
View article: Identification of (Z)-8-Heptadecene and n-Pentadecane as Electrophysiologically Active Compounds in Ophrys insectifera and Its Argogorytes Pollinator
Identification of (Z)-8-Heptadecene and n-Pentadecane as Electrophysiologically Active Compounds in Ophrys insectifera and Its Argogorytes Pollinator Open
Sexually deceptive orchids typically depend on specific insect species for pollination, which are lured by sex pheromone mimicry. European Ophrys orchids often exploit specific species of wasps or bees with carboxylic acid derivatives. Her…
View article: Priming of inducible defenses protects Norway spruce against tree‐killing bark beetles
Priming of inducible defenses protects Norway spruce against tree‐killing bark beetles Open
Plants can form an immunological memory known as defense priming, whereby exposure to a priming stimulus enables quicker or stronger response to subsequent attack by pests and pathogens. Such priming of inducible defenses provides increase…
View article: The repellency and toxicity effects of essential oils from the Libyan plants Salvadora persica and Rosmarinus officinalis against nymphs of Ixodes ricinus
The repellency and toxicity effects of essential oils from the Libyan plants Salvadora persica and Rosmarinus officinalis against nymphs of Ixodes ricinus Open
Essential oils extracted from the leaves of Libyan Rosemary (Rosmarinus officinalis L.), and Miswak (Salvadora persica L.) were evaluated for their acaricidal and repellent effects on Ixodes ricinus L. nymphs (Acari: Ixodidae) using a bioa…
View article: Genetic variation in the constitutive defensive metabolome and its inducibility are geographically structured and largely determined by demographic processes in maritime pine
Genetic variation in the constitutive defensive metabolome and its inducibility are geographically structured and largely determined by demographic processes in maritime pine Open
Interspecific phenotypic variation in plant secondary metabolites (PSM) is often explained by biotic and abiotic factors. However, patterns of variation within species do not clearly fit the theoretical predictions. Exploring how genetics,…
View article: Convergent evolution of semiochemicals across Kingdoms: bark beetles and their fungal symbionts
Convergent evolution of semiochemicals across Kingdoms: bark beetles and their fungal symbionts Open
Convergent evolution of semiochemical use in organisms from different Kingdoms is a rarely described phenomenon. Tree-killing bark beetles vector numerous symbiotic blue-stain fungi that help the beetles colonize healthy trees. Here we sho…
View article: Arthropod infestation sites and induced defence can be traced by emission from single spruce needles
Arthropod infestation sites and induced defence can be traced by emission from single spruce needles Open
Emissions of defence chemicals from Norway spruce seedlings can be induced by feeding arthropods or by exogenous hormonal application. Some defence chemicals may attract or repel associated arthropods. The aim of this study was to show tha…
View article: Inducibility of Plant Secondary Metabolites in the Stem Predicts Genetic Variation in Resistance Against a Key Insect Herbivore in Maritime Pine
Inducibility of Plant Secondary Metabolites in the Stem Predicts Genetic Variation in Resistance Against a Key Insect Herbivore in Maritime Pine Open
Resistance to herbivores and pathogens is considered a key plant trait with strong adaptive value in trees, usually involving high concentrations of a diverse array of plant secondary metabolites (PSM). Intraspecific genetic variation and …
View article: Inducibility Of Plant Secondary Metabolites Predicts Genetic Variation In Resistance Against A Key Insect Herbivore In Maritime Pine
Inducibility Of Plant Secondary Metabolites Predicts Genetic Variation In Resistance Against A Key Insect Herbivore In Maritime Pine Open
SNP dataset in maritime pine (Pinus pinaster) together with the population structure (Q) and kinship (K) matrices.
View article: Inducibility Of Plant Secondary Metabolites Predicts Genetic Variation In Resistance Against A Key Insect Herbivore In Maritime Pine
Inducibility Of Plant Secondary Metabolites Predicts Genetic Variation In Resistance Against A Key Insect Herbivore In Maritime Pine Open
SNP dataset in maritime pine (Pinus pinaster) together with the population structure (Q) and kinship (K) matrices.
View article: Essential oils of aromatic Egyptian plants repel nymphs of the tick Ixodes ricinus (Acari: Ixodidae)
Essential oils of aromatic Egyptian plants repel nymphs of the tick Ixodes ricinus (Acari: Ixodidae) Open
Due to the role of Ixodes ricinus (L.) (Acari: Ixodidae) in the transmission of many serious pathogens, personal protection against bites of this tick is essential. In the present study the essential oils from 11 aromatic Egyptian plants w…
View article: Sulfate turpentine: a resource of tick repellent compounds
Sulfate turpentine: a resource of tick repellent compounds Open
Compounds with tick (Ixodes ricinus) repellent properties were isolated from sulfate turpentine consisting of Norway spruce (80%) and Scots pine (20%) from southern Sweden. The turpentine was divided into two fractions by distillation unde…
View article: The use of semiochemical mass traps to reduce mirid damage in strawberry crops.
The use of semiochemical mass traps to reduce mirid damage in strawberry crops. Open
Advances in the identification of attraction of mirids to semiochemicals has provided the opportunity to exploit synthetically produced sex pheromones and plant produced compounds for controlling pest species in crops. Sex pheromones of mi…
View article: Antifeedants Produced by Bacteria Associated with the Gut of the Pine Weevil Hylobius abietis
Antifeedants Produced by Bacteria Associated with the Gut of the Pine Weevil Hylobius abietis Open
The pine weevil, Hylobius abietis, is a severe forest pest insect as it feeds on newly planted conifer seedlings. To identify and develop an antifeedant could be one step towards the protection of seedlings from feeding damage by the pine …
View article: Investigations of a Possible Chemical Effect of <i>Salvadora persica</i> Chewing Sticks
Investigations of a Possible Chemical Effect of <i>Salvadora persica</i> Chewing Sticks Open
Salvadora persica is commonly used chewing sticks in many parts of the world as an oral hygiene tool. This study measured the amount of benzyl isothiocyanate (BITC) released into the mouth and assessed its retention time in saliva. The stu…
View article: Cedrol, a malaria mosquito oviposition attractant is produced by fungi isolated from rhizomes of the grass Cyperus rotundus
Cedrol, a malaria mosquito oviposition attractant is produced by fungi isolated from rhizomes of the grass Cyperus rotundus Open
Cedrol an oviposition attractant for African malaria vectors is produced by two fungi species isolated from grass rhizomes collected from a natural mosquito breeding site.
View article: The gut microbiota of the pine weevil is similar across Europe and resembles that of other conifer‐feeding beetles
The gut microbiota of the pine weevil is similar across Europe and resembles that of other conifer‐feeding beetles Open
The pine weevil ( Hylobius abietis , Coleoptera: Curculionidae) is an important pest of conifer seedlings in Europe. Despite its economic importance, little is known about the composition of its gut microbial community and the role it play…
View article: Gravid Anopheles gambiae sensu stricto avoid ovipositing in Bermuda grass hay infusion and it’s volatiles in two choice egg-count bioassays
Gravid Anopheles gambiae sensu stricto avoid ovipositing in Bermuda grass hay infusion and it’s volatiles in two choice egg-count bioassays Open
Anopheles gambiae s.s. prefers to lay eggs in tap water rather than Bermuda grass hay infusion. This avoidance of the hay infusion appears to be mediated by volatile organic compounds from the infusion. It is, therefore, unlikely that Berm…
View article: It's All in the Mix: Blend-Specific Behavioral Response to a Sexual Pheromone in a Butterfly
It's All in the Mix: Blend-Specific Behavioral Response to a Sexual Pheromone in a Butterfly Open
Among insects, sexual pheromones are typically mixtures of two to several components, all of which are generally required to elicit a behavioral response. Here we show for the first time that a complete blend of sexual pheromone components…
View article: Essential Oils from Ugandan Medicinal Plants:<i>In Vitro</i>Cytotoxicity and Effects on IL‐1<i>β</i>‐Induced Proinflammatory Mediators by Human Gingival Fibroblasts
Essential Oils from Ugandan Medicinal Plants:<i>In Vitro</i>Cytotoxicity and Effects on IL‐1<i>β</i>‐Induced Proinflammatory Mediators by Human Gingival Fibroblasts Open
The study investigated cytotoxicity of essential oils from four medicinal plants ( Bidens pilosa , Ocimum gratissimum , Cymbopogon nardus , and Zanthoxylum chalybeum ) on human gingival fibroblasts and their effects on proinflammatory medi…